WO2014015745A1 - Noise reduction method and terminal - Google Patents

Noise reduction method and terminal Download PDF

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Publication number
WO2014015745A1
WO2014015745A1 PCT/CN2013/079065 CN2013079065W WO2014015745A1 WO 2014015745 A1 WO2014015745 A1 WO 2014015745A1 CN 2013079065 W CN2013079065 W CN 2013079065W WO 2014015745 A1 WO2014015745 A1 WO 2014015745A1
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WO
WIPO (PCT)
Prior art keywords
audio signal
terminal
audio
recording
noise reduction
Prior art date
Application number
PCT/CN2013/079065
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French (fr)
Chinese (zh)
Inventor
梅敬青
薛国栋
Original Assignee
华为终端有限公司
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Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Publication of WO2014015745A1 publication Critical patent/WO2014015745A1/en

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Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation

Definitions

  • Noise reduction method and terminal The present application is filed on July 23, 2012, the Chinese Patent Office, the application number is 201210255773. The priority of the Chinese patent application entitled “Noise Reduction Method and Terminal” is incorporated by reference. In this application. TECHNICAL FIELD The present application relates to noise processing techniques, and more particularly to noise reduction methods and terminals. BACKGROUND OF THE INVENTION With the development of sound processing technology, terminals have higher and higher requirements for the quality of sounds that need to be processed, and noise reduction technology has emerged.
  • the current noise reduction technology mainly uses dual microphones to actively reduce noise, and through certain algorithms, the audio data received by one microphone (ie, the noise and the signal signal with weak signal strength) is received by the audio data of another microphone (ie, Noise signal and signal signal with strong signal strength) Perform noise reduction.
  • a noise reduction method including:
  • the first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal;
  • the first terminal receives the recorded second audio signal sent by the second terminal, and performs noise reduction on the first audio signal by using the second audio signal.
  • the foregoing aspect, and any possible implementation manner further provide an implementation manner, before the first terminal starts receiving the first audio signal, the method further includes: performing, by the first terminal, the time synchronization with the second terminal ;
  • the audio recording start command includes a start time stamp, where the start time stamp is used to indicate a time when the second terminal records the second audio signal;
  • the audio recording end command includes an end time bird.
  • the end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
  • the first terminal receiving the recorded second audio signal sent by the second terminal including: the first terminal Receiving, by the second terminal, the recorded second audio signal that is sent when determining that the second audio signal causes interference to the first audio signal.
  • the first audio signal is an audio signal received by the first terminal by a primary microphone; and the third audio signal is the first terminal The audio signal received by the auxiliary mic; before the first terminal uses the second audio signal to perform noise reduction on the first audio signal, the method further includes:
  • the first terminal obtains attenuation information of the second audio signal according to the third audio signal and the second audio signal;
  • the first terminal performs noise reduction on the first audio signal by using the second audio signal, and includes:
  • the first terminal performs noise reduction on the first audio signal by using the attenuation information of the second audio signal and the second audio signal.
  • a noise reduction method including:
  • the first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal;
  • the first terminal sends the first audio signal to a server, so that the server performs noise reduction on the first audio signal by using the second audio signal.
  • the audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
  • the audio recording end command includes an end time bird.
  • the end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
  • the method before the first terminal uses the second audio signal to perform noise reduction on the first audio signal, the method further includes:
  • the second terminal receives, by the first terminal, a response message sent by the second terminal, where the response message is used to indicate that the first audio signal is not required to be noise-reduced by using the second audio signal, where the response message is
  • the second terminal sends the first terminal to the first terminal.
  • the first audio signal is an audio signal received by the first terminal by a primary microphone; and the third audio signal is the first terminal An audio signal received by the auxiliary microphone; the method further includes:
  • the server Receiving, by the first terminal, the third audio signal by using a secondary microphone, and transmitting the third audio signal to the server, so that the server obtains according to the third audio signal and the second audio signal Attenuating information of the second audio signal, and performing noise reduction on the first audio signal by using attenuation information of the second audio signal and the second audio signal.
  • a noise reduction method including:
  • the second terminal starts recording the second audio signal generated by the second terminal according to the audio recording start command
  • the second terminal ends recording the second audio signal according to the audio recording end command; Transmitting, by the second terminal, the second audio signal to the first terminal, to enable the first terminal to perform noise reduction on the first audio signal by using the second audio signal; or
  • the second terminal sends the second audio signal to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
  • the method before the second terminal receives the audio recording start command sent by the first terminal, the method further includes: the second terminal and the first The terminal performs time synchronization;
  • the audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
  • the audio recording end command includes an end time bird.
  • the end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, before the second terminal starts recording the second audio signal according to the audio recording start command, and further includes:
  • the response message is for indicating that the first audio signal does not need to be noise-reduced by the second audio signal.
  • the method further includes:
  • a terminal including:
  • a receiving unit configured to receive the first audio signal, and transmit the first audio signal to the processing unit
  • a sending unit configured to: when the receiving unit starts to receive the first audio signal, send an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second terminal to generate a second audio signal; and when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, the audio recording end command, used to instruct the second terminal to end recording The second audio signal;
  • the receiving unit is further configured to receive the recorded second audio signal sent by the second terminal, and transmit the second audio signal to the processing unit;
  • the processing unit is configured to perform noise reduction on the first audio signal by using the second audio signal.
  • the terminal further includes a synchronization unit, where
  • the audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
  • the audio recording end command includes an end time bird.
  • the end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
  • the first audio signal is an audio signal received by the first terminal by a primary microphone; and the third audio signal is a The audio signal received by the auxiliary microphone;
  • the receiving unit is also used for
  • the processing unit is also used for
  • the processing unit is specifically used for
  • the first audio signal is noise-reduced by the attenuation information of the second audio signal and the second audio signal.
  • a terminal including:
  • a receiving unit configured to receive the first audio signal, and transmit the first audio signal to the sending unit
  • the sending unit is configured to: when the receiving unit starts to receive the first audio signal, send an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second a second audio signal generated by the terminal; and when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to indicate the second terminal End recording the second audio signal;
  • the sending unit is further configured to send the first audio signal to a server, so that the server uses the second audio signal to perform noise reduction on the first audio signal.
  • the terminal further includes a synchronization unit, where
  • the audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
  • the audio recording end command includes an end time bird.
  • the end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
  • the second terminal receives a response message sent by the second terminal, where the response message is used to indicate that the first audio signal is not required to be denoised by using the second audio signal, where the response message is determined by the second terminal
  • the second terminal sends the interference to the first terminal.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, where
  • the first audio signal is an audio signal received by the first terminal through the primary microphone;
  • the third audio signal is an audio signal received by the receiving unit through the auxiliary microphone;
  • the receiving unit is also used for
  • the processing unit is also used for controlling
  • the processing unit is specifically used for
  • the first audio signal is noise-reduced by the attenuation information of the second audio signal and the second audio signal.
  • a terminal including:
  • a receiving unit configured to receive an audio recording start command sent by the first terminal, where the audio recording start command is sent to the terminal when the first terminal starts receiving the first audio signal, and the audio recording start command is transmitted Give the processing unit;
  • the processing unit is configured to start recording a second audio signal generated by the terminal according to the audio recording start command;
  • the receiving unit is further configured to receive an audio recording end command sent by the first terminal, and transmit the audio recording end command to the processing unit, where the audio recording end command is that the first terminal ends receiving Sending the first audio signal to the terminal;
  • the processing unit is further configured to end recording the second audio signal according to the audio recording end command, and transmitting the second audio signal to the sending unit;
  • the sending unit is configured to
  • the terminal further includes a synchronization unit, where
  • the audio record start command includes a start time bird, the start time stamp is used to indicate Determining, by the terminal, a time at which the second audio signal starts;
  • the audio recording end command includes an end time bird.
  • the end time stamp is used to indicate the time at which the terminal records the end of the second audio signal.
  • the terminal When the terminal does not cause interference to the first terminal, determining to not perform an operation of starting to record the second audio signal according to the audio recording start command, and sending a response message to the first terminal, the response message Instructing that the first audio signal is not required to be noise reduced using the second audio signal.
  • the above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the first audio signal is an audio signal received by the first terminal through a primary microphone;
  • the processing unit is also used for controlling
  • the sending unit is also used for
  • an embodiment of the present application when the first terminal starts receiving the first audio signal, sends an audio recording start command to the second terminal, where the audio recording start command is used to indicate the second terminal. And starting to record the second audio signal generated by the second terminal, and when the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording ends the command, Instructing the second terminal to end recording the second audio signal, so that the first terminal receives the recorded second audio signal sent by the second terminal, and can utilize the second audio signal pair
  • the first audio signal is noise-reduced, The problem of suppressing noise in the prior art while suppressing the speech signal to a certain extent can be avoided, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
  • the audio recording start command is sent to the second terminal, where the audio recording start command is used to indicate the second
  • the terminal starts to record the second audio signal generated by the second terminal, and when the first terminal ends receiving the first audio signal, sends an audio recording end command to the second terminal, where the audio recording ends the command, Instructing the second terminal to end recording the second audio signal, the first terminal further transmitting the first audio signal to a server, so that the server can use the second audio signal to the first
  • the noise reduction of an audio signal can avoid the problem of suppressing noise and suppressing the speech signal in the prior art, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
  • the second terminal receives an audio recording start command sent by the first terminal, and starts recording the second audio generated by the second terminal according to the audio recording start command.
  • a signal the audio recording start command is sent to the second terminal when the first terminal starts receiving the first audio signal
  • the second terminal receives the audio recording end command sent by the first terminal, and according to The audio recording end command ends recording the second audio signal
  • the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal, and the second terminal
  • And transmitting the second audio signal to the first terminal or the server so that the first terminal can perform noise reduction on the first audio signal by using the second audio signal, or the server can utilize the Decoding, by the second audio signal, the received first audio signal sent by the first terminal, which can be avoided
  • the noise is suppressed and the speech signal is also suppressed to some extent, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
  • 1 is a schematic flowchart of a noise reduction method according to an embodiment of the present application
  • 2 is a schematic flow chart of a noise reduction method provided by another embodiment of the present application
  • FIG. 3 is a schematic flow chart of a noise reduction method provided by another embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • FIG. 1 is a schematic flowchart of a noise reduction method according to an embodiment of the present disclosure, as shown in FIG. 1 .
  • the method includes:
  • the first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio generated by the second terminal. signal.
  • the first terminal receives the recorded second audio message sent by the second terminal. No. the first audio signal is noise-reduced by the second audio signal.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the first audio signal may include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, in the first frame, the first terminal may perform signal analysis on the received first audio signal, and after determining, by the signal analysis, determining that the first audio signal includes the noise, The second audio signal is subjected to noise reduction (ie, noise reduction related operation) with the first audio signal to reduce the noise included in the first audio signal, thereby enabling noise reduction.
  • noise reduction ie, noise reduction related operation
  • the first audio signal may not include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, in the first frame, the first terminal may perform signal analysis on the received first audio signal, and after determining the signal, determining that the first audio signal does not include the noise, Decoding the second audio signal with the first audio signal (ie, a noise reduction correlation operation), since the noise is not included in the first audio signal, the noise reduction performed by the first terminal is not Any effect is generated on the first audio signal to continue to maintain the first audio signal unaffected by the second audio signal.
  • the first terminal before the first terminal starts to receive the first audio signal, the first terminal may further perform time synchronization with the second terminal.
  • the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
  • the first terminal may receive the second terminal, determining that the second audio signal interferes with the first audio signal.
  • the second audio signal that has been recorded is transmitted.
  • the second terminal may specifically determine whether the second terminal causes interference to the first terminal; when the second terminal causes interference to the first terminal, determining to perform according to the The audio recording start command starts the operation of recording the second audio signal; when the second terminal does not cause interference to the first terminal, determining to not perform the recording of the second audio signal according to the audio recording start command And transmitting a response message to the first terminal, the response message being used to indicate that the first audio signal is not required to be noise-reduced by the second audio signal.
  • the second terminal may specifically determine whether the second terminal causes interference to the first terminal by using a somatosensory identification technology or a positioning technology. Specifically, the second terminal may specifically determine, by using a somatosensory identification technology or a positioning technology, whether a distance between the second terminal and the first terminal is less than a preset distance threshold, if the distance is less than or equal to the distance The second terminal may determine to perform an operation of recording the second audio signal according to the audio recording start command; if the distance is greater than the distance threshold, the second terminal may determine not to perform the The audio recording start command starts the operation of recording the second audio signal, and transmits the response message to the first terminal.
  • the first terminal includes two microphones, a primary microphone and a secondary microphone.
  • the primary microphone is disposed on a front side of the first terminal, for example, with a user.
  • the secondary microphone is placed on the back of the first terminal, for example, where it is far from the user's organ.
  • the first audio signal is an audio signal received by the first terminal through a primary microphone
  • the third audio signal is an audio signal received by the first terminal through a secondary microphone.
  • the first terminal then obtains attenuation information of the second audio signal based on the third audio signal and the second audio signal.
  • the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
  • the first terminal may specifically perform noise reduction on the first audio signal by using the attenuation information of the second audio signal and the second audio signal.
  • the audio recording start command is sent to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second terminal.
  • Second audio signal and the first terminal ends receiving
  • the audio recording end command is sent to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal, so that the first terminal receives
  • the second audio signal that is recorded by the second terminal, and capable of performing noise reduction on the first audio signal by using the second audio signal can avoid the noise suppression in the prior art
  • the problem of the speech signal being suppressed is also suppressed, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
  • FIG. 2 is a schematic flowchart of a noise reduction method according to another embodiment of the present application, as shown in FIG. 2 .
  • the method includes:
  • the first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio generated by the second terminal. signal.
  • the first terminal sends the first audio signal to a server, so that the server uses the second audio signal to perform noise reduction on the first audio signal.
  • the second audio signal is sent to the server by the second terminal after the end of recording the second audio signal.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the first audio signal may include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium.
  • the server may perform signal analysis on the received first audio signal, and after determining, by the signal analysis, determining that the first audio signal includes the noise, the second audio signal may be utilized.
  • the first audio signal is subjected to noise reduction (i.e., noise reduction correlation operation) to reduce the noise contained in the first audio signal, thereby enabling noise reduction.
  • the first audio signal may not include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium.
  • the server may perform signal analysis on the received first audio signal, and after determining the signal, determining that the first audio signal does not include the noise, may be utilized.
  • the second audio signal performs noise reduction (ie, noise reduction correlation operation) with the first audio signal, and since the noise is not included in the first audio signal, the noise reduction performed by the server does not Any effect is generated on the first audio signal to continue to maintain the first audio signal unaffected by the second audio signal.
  • the first terminal before the first terminal starts to receive the first audio signal, the first terminal may further perform time synchronization with the second terminal.
  • the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
  • the first terminal includes two microphones, a primary microphone and a secondary microphone.
  • the primary microphone is disposed on a front side of the first terminal, for example, with a user.
  • the secondary microphone is placed on the back of the first terminal, for example, where it is far from the user's organ.
  • the first audio signal is an audio signal received by the first terminal through a primary microphone
  • the third audio signal is an audio signal received by the first terminal through a secondary microphone.
  • the first terminal may send the third audio signal to the server, so that the server obtains the attenuation information of the second audio signal according to the third audio signal and the second audio signal. And using the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the first audio signal.
  • the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
  • the audio recording start command is sent to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second terminal.
  • a second audio signal and when the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, the audio recording ends
  • the first terminal further sends the first audio signal to a server, so that the server can utilize the second audio signal pair
  • the noise reduction of the first audio signal can avoid the problem of suppressing noise and suppressing the speech signal in the prior art, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
  • FIG. 3 is a schematic flowchart of a noise reduction method according to another embodiment of the present application, as shown in FIG. 3. The method includes:
  • the second terminal receives an audio recording start command sent by the first terminal, where the audio recording start command is sent to the second terminal when the first terminal starts to receive the first audio signal.
  • the second terminal starts recording a second audio signal generated by the second terminal according to the audio recording start command.
  • the second terminal receives an audio recording end command sent by the first terminal, where the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal.
  • the second terminal ends recording the second audio signal according to the audio recording end command.
  • the second terminal sends the second audio signal to the first terminal, so that the first terminal performs noise reduction on the first audio signal by using the second audio signal.
  • the second terminal sends the second audio signal to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the first audio signal may include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, the first terminal or the server may perform signal analysis on the received first audio signal, and after determining, by using the signal, determining that the first audio signal includes the noise, The second audio signal is subjected to noise reduction (ie, noise reduction related operation) with the first audio signal to reduce the noise included in the first audio signal, thereby enabling noise reduction.
  • the first audio signal may not include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium.
  • the first terminal or the server may perform signal analysis on the received first audio signal, and after determining, after the signal analysis, determining that the first audio signal does not include the noise,
  • the second audio signal performs noise reduction (ie, noise reduction related operation) with the first audio signal, and the first terminal or the server performs the lowering because the noise is not included in the first audio signal. Noise does not have any effect on the first audio signal to continue to maintain the first audio signal unaffected by the second audio signal.
  • the second terminal may further perform time synchronization with the first terminal.
  • the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
  • the second terminal may further determine the Whether the second terminal causes interference to the first terminal, when the second terminal causes interference to the first terminal, the second terminal determines to perform to start recording the second audio signal according to the audio recording start command.
  • the operation of the second terminal is not performed when the second terminal does not cause interference to the first terminal, and the operation of starting to record the second audio signal according to the audio recording start command is performed
  • a terminal or the server sends a response message, the response message is used to indicate that the first audio signal does not need to be noise-reduced by the second audio signal.
  • the second terminal may specifically determine whether the second terminal causes interference to the first terminal by using a somatosensory identification technology or a positioning technology. Specifically, the second terminal may specifically determine, by using a somatosensory identification technology or a positioning technology, whether a distance between the second terminal and the first terminal is less than a preset distance threshold, if the distance is less than or equal to the distance The second terminal may determine to perform an operation of recording the second audio signal according to the audio recording start command; if the distance is greater than the distance threshold, the second terminal may determine not to perform the The audio recording start command starts the operation of recording the second audio signal, and to the first terminal Send the response message.
  • the second terminal may further obtain the attenuation of the second audio signal according to the distance between the second terminal and the first terminal. Information; then, the second terminal may send the attenuation information of the second audio signal to the first terminal, so that the first terminal utilizes the second audio signal and the second audio signal Attenuating information denoising the first audio signal or the second terminal may send attenuation information of the second audio signal to the server, such that the server utilizes the second audio signal and the The attenuation information of the second audio signal denoises the received first audio signal sent by the first terminal.
  • the second terminal may specifically determine a distance between the second terminal and the first terminal by using a somatosensory recognition technology or a positioning technology, and obtain attenuation information of the second audio signal according to the distance.
  • the second terminal receives the audio recording start command sent by the first terminal, and starts recording the second audio signal generated by the second terminal according to the audio recording start command, where the audio recording start command is
  • the first terminal starts to receive the first audio signal
  • the second terminal receives the audio recording end command sent by the first terminal, and ends the recording according to the audio recording end command.
  • the second audio signal, the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal
  • the second terminal further sends the first terminal or the server Transmitting the second audio signal to enable the first terminal to perform noise reduction on the first audio signal by using the second audio signal, or the server can utilize the second audio signal to receive the received Decoding the first audio signal sent by the first terminal to avoid noise suppression in the prior art.
  • the voice signal is also some question suppression thereby improving the reliability of voice quality and noise reduction after noise reduction.
  • FIG. 4 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • the terminal in this embodiment may include a receiving unit 41, a sending unit 42, and a processing unit 43.
  • the receiving unit 41 is configured to receive the first audio signal, and transmit the first audio signal to the processing unit 43.
  • the sending unit 42 is configured to: when the receiving unit 41 starts receiving the first audio signal, to the The second terminal sends an audio recording start command, the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal; and the receiving unit 41 ends receiving the first And the audio signal ending command is sent to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal; the receiving unit 41 is further configured to receive The second audio signal that is recorded by the second terminal, and the second audio signal is transmitted to the processing unit 43; the processing unit 43 is configured to use the second audio signal pair The first audio signal is described for noise reduction.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the terminal provided in this embodiment may further include a synchronization unit 51, configured to start receiving the first audio signal at the receiving unit 41. Previously, time synchronization was performed with the second terminal.
  • the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
  • the receiving unit 41 may further receive a response message sent by the second terminal, where the response message is used to indicate that the second audio does not need to be utilized.
  • the signal is used to perform noise reduction on the first audio signal, and the response message is sent to the first terminal when the second terminal determines that the second terminal does not cause interference to the first terminal.
  • the first audio signal is an audio signal received by the receiving unit 41 by a primary microphone; and the third audio signal is received by the receiving unit 41 by a secondary microphone.
  • the receiving unit 41 may further receive the third audio signal through the auxiliary microphone, and transmit the third audio signal to the processing unit 43; correspondingly, the processing unit 43 may further According to the third audio signal and the The second audio signal obtains attenuation information of the second audio signal.
  • the processing unit 41 may further receive the third audio signal through the auxiliary microphone, and transmit the third audio signal to the processing unit 43; correspondingly, the processing unit 43 may further According to the third audio signal and the The second audio signal obtains attenuation information of the second audio signal.
  • the processing unit 41 may further receive the third audio signal through the auxiliary microphone, and transmit the third audio signal to the processing unit 43; correspondingly, the processing unit 43 may further According to the third audio signal and the The second audio signal obtains attenuation information of the second audio signal.
  • the processing unit 41 may further receive the third audio signal through the auxiliary microphone
  • the second audio signal and the attenuation information of the second audio signal may be used to perform noise reduction (ie, noise reduction correlation operation) on the first audio signal to reduce inclusion in the first audio signal.
  • noise reduction ie, noise reduction correlation operation
  • the noise is such that noise reduction can be achieved.
  • the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
  • the terminal sends an audio recording start command to the second terminal by the sending unit when the receiving unit starts to receive the first audio signal, where the audio recording start command is used to instruct the second terminal to start recording the first a second audio signal generated by the second terminal, and the transmitting unit, when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used Instructing the second terminal to end recording the second audio signal, and receiving, by the receiving unit, the recorded second audio signal sent by the second terminal, so that the processing unit can utilize the second audio signal Denoising the first audio signal can avoid the problem of suppressing noise and suppressing the speech signal in the prior art, thereby improving sound quality and noise reduction after noise reduction. Sex.
  • FIG. 6 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • the terminal in this embodiment may include a receiving unit 61 and a sending unit 62.
  • the receiving unit 61 is configured to receive the first audio signal, and transmit the first audio signal to the sending unit 62.
  • the sending unit 62 is configured to: when the receiving unit 61 starts receiving the first audio signal, The second terminal sends an audio recording start command, where the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal; and the receiving unit 61 ends receiving the And the first audio signal, the audio recording end command is sent to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal; Transmitting the first audio signal to a server to cause the server to perform noise reduction on the first audio signal using the second audio signal.
  • the second audio signal is that the second terminal ends recording the second audio signal. Then sent to the server.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the terminal provided in this embodiment may further include a synchronization unit 71, configured to start receiving the first audio signal at the receiving unit 61. Previously, time synchronization was performed with the second terminal.
  • the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
  • the terminal includes two microphones, a primary microphone and a secondary microphone.
  • the primary microphone is disposed on a front side of the terminal, for example, closer to a user's organ.
  • the place where the auxiliary microphone is placed on the back of the terminal, for example, is far from the user's organ.
  • the first audio signal is an audio signal received by the receiving unit 61 through a primary microphone
  • the third audio signal is an audio signal received by the receiving unit 61 through a secondary microphone; the receiving unit 61 may further receive through the auxiliary microphone. a third audio signal, and transmitting the third audio signal to the transmitting unit 62.
  • the sending unit 62 may further send the third audio signal to the server, so that the server is according to the third And obtaining, by the audio signal and the second audio signal, attenuation information of the second audio signal, and performing noise reduction on the first audio signal by using attenuation information of the second audio signal and the second audio signal .
  • the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
  • the terminal sends an audio recording start command to the second terminal by the sending unit when the receiving unit starts to receive the first audio signal, where the audio recording start command is used to instruct the second terminal to start recording the first a second audio signal generated by the second terminal, and the transmitting unit is And when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal, And transmitting, by the sending unit, the first audio signal to the server, so that the server can perform noise reduction on the first audio signal by using the second audio signal, where the second audio signal is After the second terminal ends the recording of the second audio signal, the second terminal sends the signal to the server, which can avoid the problem of suppressing the noise and suppressing the voice signal in the prior art, thereby improving the noise reduction. Sound quality and reliability of noise reduction.
  • FIG. 8 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • the terminal in this embodiment may include a receiving unit 81, a processing unit 82, and a sending unit 83.
  • the receiving unit 81 is configured to receive an audio recording start command sent by the first terminal, where the audio recording start command is sent to the terminal when the first terminal starts receiving the first audio signal, and the audio recording is performed.
  • the start command is transmitted to the processing unit 82.
  • the processing unit 82 is configured to start recording the second audio signal generated by the terminal according to the audio recording start command.
  • the receiving unit 81 is further configured to receive the first An audio recording end command sent by the terminal, and transmitting the audio recording end command to the processing unit 82, where the audio recording end command is sent to the terminal when the first terminal ends receiving the first audio signal
  • the processing unit 82 is further configured to end recording the second audio signal according to the audio recording end command, and transmitting the second audio signal to the sending unit 83; the sending unit 83, configured to Transmitting, by the first terminal, the second audio signal, so that the first terminal uses the second audio signal to An audio signal noise reduction; or send the second audio signal to the server, so that said second server using the received audio signal to the first terminal transmits a first audio signal noise reduction.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the terminal provided in this embodiment may further include a synchronization unit 91, configured to receive, by the receiving unit 81, the first terminal, The time synchronization with the first terminal is performed before the audio recording start command.
  • a synchronization unit 91 configured to receive, by the receiving unit 81, the first terminal, The time synchronization with the first terminal is performed before the audio recording start command.
  • the audio recording start command may further include a start time stamp, where the start time stamp is used to indicate that the terminal records the start time of the second audio signal;
  • the recording end command may further include an end time bird ending time stamp for instructing the terminal to record the time at which the second audio signal ends.
  • the processing unit 82 may further determine whether the terminal causes the first terminal to be dry 4 when the terminal interferes with the first terminal. Determining an operation of starting to record the second audio signal according to the audio recording start command; when the terminal does not cause interference to the first terminal, determining not to perform the recording according to the audio recording start command The operation of the second audio signal, and generating a response message, transmitting the response message to the transmitting unit 83, the response message indicating that the first audio signal need not be denoised by the second audio signal.
  • the sending unit 83 can send the response message to the first terminal or the server.
  • the processing unit 82 may further obtain, according to a distance between the terminal and the first terminal, attenuation information of the second audio signal, where And transmitting the attenuation information of the second audio signal to the sending unit 83; correspondingly, the sending unit 83 may send the attenuation information of the second audio signal to the first terminal, so that the The first terminal denoises the first audio signal by using the attenuation information of the second audio signal and the second audio signal or transmits attenuation information of the second audio signal to the server, so that the The server uses the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
  • the terminal receives the audio recording start command sent by the first terminal by using the receiving unit, and the processing unit starts to record the second audio signal generated by the terminal according to the audio recording start command, where the audio recording start command is started.
  • the second audio signal to enable the first terminal to perform noise reduction on the first audio signal using the second audio signal, or the server is capable of utilizing the second audio signal to receive the
  • the first audio signal sent by the first terminal performs noise reduction, which can avoid the noise in the prior art.
  • FIG. 10 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure. As shown in FIG. 10, the terminal in this embodiment may include a microphone 1001, a transmitter 1002, a receiver 1003, and one or more processors 1004.
  • the microphone 1001 is configured to receive a first audio signal and send the signal to the one or more processors 1004;
  • the one or more processors 1004 are configured to generate an audio recording start command when the microphone 1001 starts receiving the first audio signal, and send the audio recording start command to the transmitter 1002 to receive the microphone 1001; And generating an audio recording end command, and transmitting to the transmitter 1002; receiving the second audio signal received by the receiver 1003, and using the second audio signal to the first audio
  • the signal is noise-reduced
  • the audio recording start command is configured to instruct the second terminal to start recording the second audio signal generated by the second terminal, and the audio recording end command is used to instruct the second terminal to end recording the second audio signal;
  • the transmitter 1002 is configured to send, according to an instruction of the one or more processors, the audio recording start command and the audio recording end command to the second terminal;
  • the receiver 1003 is configured to receive the recorded second audio signal sent by the second terminal, and send the signal to the processor 1004.
  • the above transmitter and receiver may specifically be a radio frequency unit or a WiFi module.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the processor 1004 may further perform time synchronization with the second terminal before the microphone 1001 starts receiving the first audio signal.
  • the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
  • the receiver 1003 may receive, by the second terminal, a recorded record that is sent when the second terminal determines that the second audio signal causes interference to the first audio signal.
  • the microphone includes two microphones, a primary microphone and a secondary microphone.
  • the primary microphone is disposed on a front side of the terminal, for example, closer to a user's organ. The place where the auxiliary microphone is placed on the back of the terminal, for example, is far from the user's organ.
  • the first audio signal is an audio signal received by the primary microphone
  • the third audio signal is an audio signal received by the secondary microphone.
  • the primary microphone is configured to receive the first audio signal and send the signal to the one or more processors 1004;
  • the secondary microphone is configured to receive the third audio signal, and send the The one or more processors 1004.
  • the processor 1004 may further obtain attenuation information of the second audio signal according to the third audio signal and the second audio signal.
  • the processor 1004 may specifically perform noise reduction (ie, noise reduction correlation operation) on the first audio signal by using attenuation information of the second audio signal and the second audio signal to reduce the The noise contained in the first audio signal enables noise reduction.
  • noise reduction ie, noise reduction correlation operation
  • the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
  • the terminal provided in this embodiment may further include a memory for storing information received or processed by other units or modules.
  • the terminal generates an audio recording start command by the processor when the microphone starts receiving the first audio signal, and sends the audio recording start command to the transmitter, and generates an audio when the microphone ends receiving the first audio signal. Recording an end command, and sending it to the sender, the audio recording start command for instructing the second terminal to start recording the second audio signal generated by the second terminal, the audio recording end command, Instructing the second terminal to end recording the second audio signal, and receiving, by the receiver, the recorded second audio signal sent by the second terminal, so that the processor can utilize the second audio
  • the signal is denoised by the signal, which can avoid the problem of suppressing the noise and suppressing the speech signal in the prior art, thereby improving the sound quality and noise reduction after noise reduction. reliability.
  • FIG. 11 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure, as shown in FIG.
  • the terminal of this embodiment may include a microphone 1101, a transmitter 1102, and one or more processors 1103.
  • the microphone 1101 is configured to receive a first audio signal and send the signal to the one or more processors 1103;
  • the one or more processors 1103> are configured to generate an audio recording start command when the microphone 1101 starts receiving the first audio signal, and send it to the transmitter 1 102 for transmission; ending at the microphone 1101 Receiving the first audio signal, generating an audio recording end command, and transmitting it to the transmitter 1 102; and transmitting the first audio signal to the transmitter 1 102;
  • the audio recording start command is configured to instruct the second terminal to start recording the second audio signal generated by the second terminal, and the audio recording end command is used to instruct the second terminal to end recording the second audio signal;
  • the transmitter 1102 is configured to send the audio recording start command and the audio recording end command to the second terminal according to an instruction of the one or more processors, and send the first audio to a server And causing the server to perform noise reduction on the first audio signal by using the second audio signal.
  • the above transmitter may specifically be a radio frequency unit or a WiFi module.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the second audio signal is sent to the server by the second terminal after the end of recording the second audio signal.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the processor 1103 may further perform time synchronization with the second terminal before the microphone 1101 starts receiving the first audio signal.
  • the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp can also be further included in the end time The second terminal is recorded to record the time when the second audio signal ends.
  • the microphone includes two microphones, a primary microphone and a secondary microphone.
  • the primary microphone is disposed on a front side of the terminal, for example, closer to a user's organ.
  • the place where the auxiliary microphone is placed on the back of the terminal, for example, is far from the user's organ.
  • the first audio signal is an audio signal received by the primary microphone
  • the third audio signal is an audio signal received by the secondary microphone. That is, the primary microphone is configured to receive the first audio signal and send the signal to the one or more processors 1103; the secondary microphone is configured to receive the third audio signal, and send the
  • the one or more processors iioa may further transmit the third audio signal to the transmitter 1 102 for transmission.
  • the transmitter 1102 may further send the third audio signal to the server according to an instruction of the one or more processors, so that the server according to the third audio signal and the Deriving the second audio signal to obtain attenuation information of the second audio signal.
  • the server may specifically perform noise reduction (ie, noise reduction correlation operation) on the first audio signal by using attenuation information of the second audio signal and the second audio signal to reduce the first audio.
  • noise reduction ie, noise reduction correlation operation
  • the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
  • the terminal provided in this embodiment may further include a memory for storing information received or processed by other units or modules.
  • the terminal generates an audio recording start command by the processor when the microphone starts receiving the first audio signal, and sends the audio recording start command to the transmitter, and generates an audio when the microphone ends receiving the first audio signal. Recording an end command, and sending it to the sender, the audio recording start command for instructing the second terminal to start recording the second audio signal generated by the second terminal, the audio recording end command, Instructing the second terminal to end recording the second audio signal, and transmitting, by the transmitter, the first audio signal to a server, so that the server utilizes the second audio signal to the first audio Signal noise reduction, avoiding existing technology Due to the suppression of noise, the speech signal is also suppressed to some extent, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
  • FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure. As shown in FIG. 12, the terminal in this embodiment may include a receiver 1201, one or more processors 1202, and a transmitter 1203.
  • the receiver 1201 is configured to receive an audio recording start command sent by the first terminal, where the audio recording start command is sent to the terminal when the first terminal starts receiving the first audio signal, and the audio recording start command is Transfer to the processor 1202;
  • the processor 1202 is configured to start recording a second audio signal generated by the terminal according to the audio recording start command;
  • the receiver 1201 is further configured to receive an audio recording end command sent by the first terminal, and transmit the audio recording end command to the processor 1202, where the audio recording end command is the first terminal Transmitting to the terminal when receiving the first audio signal; the processor 1202 is further configured to end recording the second audio signal according to the audio recording end command, and to record the second The audio signal is sent by the transmitter 1203, and the transmitter 1203 is configured to send the second audio signal to the first terminal, so that the first terminal uses the second audio signal to the first The audio signal is noise-reduced or the second audio signal is sent to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
  • the above receiver and transmitter may specifically be a radio frequency unit or a WiFi module.
  • the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
  • the processor 1202 may further perform time with the first terminal before the receiver 1201 receives the audio recording start command sent by the first terminal. Synchronize.
  • the audio recording start command may further include a start time stamp, where the start time stamp is used to indicate a time when the terminal records the second audio signal; and the audio record end command is further The end time of the bird may be further included to indicate that the terminal records the end of the second audio signal.
  • the processor 1202 is further Determining whether the terminal causes the first terminal to cause interference.
  • the terminal causes interference to the first terminal, determining to perform an operation of starting to record the second audio signal according to the audio recording start command;
  • the terminal does not cause interference to the first terminal, determining to not perform an operation of starting to record the second audio signal according to the audio recording start command, and generating a response message, handing the response message to the sending
  • the transmitter 1203 transmits, the response message indicating that the first audio signal does not need to be noise-reduced by the second audio signal.
  • the transmitter 1203 may send the response message to the first terminal or the server according to an instruction of the one or more processors.
  • the processor 1202 may further obtain, according to a distance between the terminal and the first terminal, attenuation information of the second audio signal, where And transmitting the attenuation information of the second audio signal to the transmitter 1203; correspondingly, the transmitter 1203 may send the attenuation information of the second audio signal to the first terminal, so that the Determining, by the first terminal, the first audio signal by using the attenuation information of the second audio signal and the second audio signal, or transmitting attenuation information of the second audio signal to the server, so that The server uses the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
  • the terminal provided in this embodiment may further include a memory for storing information received or processed by other units or modules.
  • the terminal receives the audio recording start command sent by the first terminal by using the receiver, and the processor starts to record the second audio signal generated by the terminal according to the audio recording start command, where the audio recording start command is Transmitting to the terminal when the first terminal starts receiving the first audio signal, and the receiver receives an audio recording end command sent by the first terminal, and the processor ends the command according to the audio recording End recording the second audio signal, the audio recording end command is sent to the terminal when the first terminal ends receiving the first audio signal, and then sent by the transmitter to the first terminal or server
  • the second audio signal to enable the first terminal to perform noise reduction on the first audio signal using the second audio signal, or the server is capable of utilizing the second audio signal to receive the
  • the first audio signal sent by the first terminal performs noise reduction, which can avoid the same suppression of noise in the prior art.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute the method of the various embodiments of the present application. Part of the steps.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and the like can store program codes. Medium.

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Abstract

A noise reduction method and a terminal. On the one hand, when a first terminal starts to receive a first audio signal, an audio recording start command is transmitted to a second terminal, the audio recording start command being used for instructing the second terminal to start to record a second audio signal generated by the second terminal (101); and when the first terminal finishes receiving the first audio signal, an audio recording finish command is transmitted to the second terminal, the audio recording finish command being used for instructing the second terminal to finish recording the second audio signal (102), so that the first terminal receives the recorded second audio signal transmitted from the second terminal, and the second audio signal can be utilized to perform noise reduction on the first audio signal (103), which can prevent the problem in the prior art that the voice signal is also suppressed to a certain extent while suppressing noise, thereby improving the sound quality after noise reduction and the reliability of noise reduction.

Description

降噪方法及终端 本申请要求于 2012年 7月 23日提交中国专利局、 申请号为 201210255773. S 发明名称为"降噪方法及终端"的中国专利申请的优先权其全部内容通过引用结 合在本申请中。 技术领域 本申请涉及噪声处理技术, 尤其涉及降噪方法及终端。 背景技术 随着声音处理技术发展, 终端对需要处理的声音质量的要求也越来越 高, 降噪技术应运而生。 目前的降噪技术主要是釆用双麦克风主动降噪, 通 过一定算法, 利用一个麦克风接收到的音频数据(即噪声和信号强度较弱的 语音信号)对另一个麦克风接收到的音频数据(即噪声和信号强度较强的语 音信号) 进行降噪制。  Noise reduction method and terminal The present application is filed on July 23, 2012, the Chinese Patent Office, the application number is 201210255773. The priority of the Chinese patent application entitled "Noise Reduction Method and Terminal" is incorporated by reference. In this application. TECHNICAL FIELD The present application relates to noise processing techniques, and more particularly to noise reduction methods and terminals. BACKGROUND OF THE INVENTION With the development of sound processing technology, terminals have higher and higher requirements for the quality of sounds that need to be processed, and noise reduction technology has emerged. The current noise reduction technology mainly uses dual microphones to actively reduce noise, and through certain algorithms, the audio data received by one microphone (ie, the noise and the signal signal with weak signal strength) is received by the audio data of another microphone (ie, Noise signal and signal signal with strong signal strength) Perform noise reduction.
然而, 现有的降噪方法虽然能够对噪声进行抑制, 但是同样也对语音信 号进行了一定的抑制, 会影响了降噪之后的声音质量, 导致了降噪的可靠性 的降低。 发明内容 本申请的多个方面提供降噪方法及终端, 用以提高降噪的可靠性。 本申请的一方面, 提供一种降噪方法, 包括:  However, although the existing noise reduction method can suppress the noise, the voice signal is also suppressed to some extent, which affects the sound quality after noise reduction, resulting in a decrease in the reliability of noise reduction. SUMMARY OF THE INVENTION Aspects of the present application provide a noise reduction method and a terminal for improving reliability of noise reduction. In an aspect of the present application, a noise reduction method is provided, including:
第一终端开始接收第一音频信号时, 向第二终端发送音频记录开始命 令, 所述音频记录开始命令, 用于指示所述第二终端开始记录所述第二终端 生成的第二音频信号;  The first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal;
所述第一终端结束接收所述第一音频信号时, 向所述第二终端发送音频 记录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所 述第二音频信号;  When the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal. ;
所述第一终端接收所述第二终端发送的已记录的所述第二音频信号, 利 用所述第二音频信号对所述第一音频信号进行降噪。 如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一终端开始接收第一音频信号之前, 还包括: 所述第一终端与所述第二 终端执行时间同步; The first terminal receives the recorded second audio signal sent by the second terminal, and performs noise reduction on the first audio signal by using the second audio signal. The foregoing aspect, and any possible implementation manner, further provide an implementation manner, before the first terminal starts receiving the first audio signal, the method further includes: performing, by the first terminal, the time synchronization with the second terminal ;
所述音频记录开始命令中包含起始时间戳 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间;  The audio recording start command includes a start time stamp, where the start time stamp is used to indicate a time when the second terminal records the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。  The audio recording end command includes an end time bird. The end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一终端接收所述第二终端发送的已记录的所述第二音频信号, 包括: 所述第一终端,接收所述第二终端在判断所述第二音频信号对第一音频 信号造成干扰时, 发送的已记录的所述第二音频信号。  The aspect as described above, and any possible implementation manner, further provide an implementation manner, the first terminal receiving the recorded second audio signal sent by the second terminal, including: the first terminal Receiving, by the second terminal, the recorded second audio signal that is sent when determining that the second audio signal causes interference to the first audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一音频信号为所述第一终端通过主麦克接收的音频信号; 第三音频信号 为所述第一终端通过辅麦克接收的音频信号; 所述第一终端利用所述第二音 频信号对所述第一音频信号进行降噪之前, 还包括:  The aspect as described above, and any possible implementation manner, further providing an implementation manner, the first audio signal is an audio signal received by the first terminal by a primary microphone; and the third audio signal is the first terminal The audio signal received by the auxiliary mic; before the first terminal uses the second audio signal to perform noise reduction on the first audio signal, the method further includes:
所述第一终端通过辅麦克接收所述第三音频信号;  Receiving, by the first terminal, the third audio signal by using a secondary microphone;
所述第一终端根据所述第三音频信号和所述第二音频信号, 获得所述第 二音频信号的衰减信息;  The first terminal obtains attenuation information of the second audio signal according to the third audio signal and the second audio signal;
所述第一终端利用所述第二音频信号对所述第一音频信号进行降噪, 包 括:  The first terminal performs noise reduction on the first audio signal by using the second audio signal, and includes:
所述第一终端利用所述第二音频信号和所述第二音频信号的衰减信 息, 对所述第一音频信号进行降噪。  The first terminal performs noise reduction on the first audio signal by using the attenuation information of the second audio signal and the second audio signal.
本申请的另一方面, 提供一种降噪方法, 包括:  In another aspect of the present application, a noise reduction method is provided, including:
第一终端开始接收第一音频信号时, 向第二终端发送音频记录开始命 令, 所述音频记录开始命令, 用于指示所述第二终端开始记录所述第二终端 生成的第二音频信号;  The first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal;
所述第一终端结束接收所述第一音频信号时, 向所述第二终端发送音频 记录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所 述第二音频信号;  When the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal. ;
所述第一终端向服务器发送所述第一音频信号, 以使得所述服务器利用 所述第二音频信号对所述第一音频信号进行降噪。 如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一终端开始接收第一音频信号之前, 还包括: The first terminal sends the first audio signal to a server, so that the server performs noise reduction on the first audio signal by using the second audio signal. The foregoing aspect, and any possible implementation manner, further provide an implementation manner, before the first terminal starts to receive the first audio signal, the method further includes:
所述第一终端与所述第二终端执行时间同步;  Performing time synchronization between the first terminal and the second terminal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间;  The audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。  The audio recording end command includes an end time bird. The end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一终端利用所述第二音频信号对所述第一音频信号进行降噪之前,还包 括:  The foregoing aspect, and any possible implementation manner, further provide an implementation manner, before the first terminal uses the second audio signal to perform noise reduction on the first audio signal, the method further includes:
所述第一终端接收所述第二终端发送的响应消息, 所述响应消息用于指 示不需要利用所述第二音频信号对所述第一音频信号进行降噪, 所述响应消 息为当所述第二终端确定所述第二终端不对所述第一终端造成干扰时,发送 给所述第一终端。  Receiving, by the first terminal, a response message sent by the second terminal, where the response message is used to indicate that the first audio signal is not required to be noise-reduced by using the second audio signal, where the response message is When the second terminal determines that the second terminal does not cause interference to the first terminal, the second terminal sends the first terminal to the first terminal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一音频信号为所述第一终端通过主麦克接收的音频信号; 第三音频信号 为所述第一终端通过辅麦克接收的音频信号; 所述方法还包括:  The aspect as described above, and any possible implementation manner, further providing an implementation manner, the first audio signal is an audio signal received by the first terminal by a primary microphone; and the third audio signal is the first terminal An audio signal received by the auxiliary microphone; the method further includes:
所述第一终端通过辅麦克接收所述第三音频信号, 将所述第三音频信号 发送给所述服务器, 以使得所述服务器根据所述第三音频信号和所述第二音 频信号, 获得所述第二音频信号的衰减信息, 以及利用所述第二音频信号和 所述第二音频信号的衰减信息, 对所述第一音频信号进行降噪。  Receiving, by the first terminal, the third audio signal by using a secondary microphone, and transmitting the third audio signal to the server, so that the server obtains according to the third audio signal and the second audio signal Attenuating information of the second audio signal, and performing noise reduction on the first audio signal by using attenuation information of the second audio signal and the second audio signal.
本申请的另一方面, 提供一种降噪方法, 包括:  In another aspect of the present application, a noise reduction method is provided, including:
第二终端接收第一终端发送的音频记录开始命令, 所述音频记录开始命 令为所述第一终端开始接收第一音频信号时发送给所述第二终端;  Receiving, by the second terminal, an audio recording start command sent by the first terminal, where the audio recording start command is sent to the second terminal when the first terminal starts to receive the first audio signal;
所述第二终端根据所述音频记录开始命令, 开始记录所述第二终端生成 的第二音频信号;  The second terminal starts recording the second audio signal generated by the second terminal according to the audio recording start command;
所述第二终端接收所述第一终端发送的音频记录结束命令, 所述音频记 录结束命令为所述第一终端结束接收所述第一音频信号时发送给所述第二 终端;  Receiving, by the second terminal, an audio recording end command sent by the first terminal, where the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal;
所述第二终端根据所述音频记录结束命令, 结束记录所述第二音频信 号; 所述第二终端向所述第一终端发送所述第二音频信号, 以使得所述第一 终端利用所述第二音频信号对所述第一音频信号进行降噪; 或者 The second terminal ends recording the second audio signal according to the audio recording end command; Transmitting, by the second terminal, the second audio signal to the first terminal, to enable the first terminal to perform noise reduction on the first audio signal by using the second audio signal; or
所述第二终端向服务器发送所述第二音频信号, 以使得所述服务器利用 所述第二音频信号对接收的所述第一终端发送的所述第一音频信号进行降 噪。  The second terminal sends the second audio signal to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第二终端接收第一终端发送的音频记录开始命令之前, 还包括: 所述第二 终端与所述第一终端执行时间同步;  The foregoing aspect, and any possible implementation manner, further provide an implementation manner, before the second terminal receives the audio recording start command sent by the first terminal, the method further includes: the second terminal and the first The terminal performs time synchronization;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间;  The audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。  The audio recording end command includes an end time bird. The end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第二终端根据所述音频记录开始命令开始记录所述第二音频信号之前,还 包括:  The foregoing aspect and any possible implementation manner further provide an implementation manner, before the second terminal starts recording the second audio signal according to the audio recording start command, and further includes:
所述第二终端确定所述第二终端是否对所述第一终端造成干扰; 当所述第二终端对所述第一终端造成干扰时, 判断执行根据所述音频记 录开始命令开始记录所述第二音频信号的操作;  Determining, by the second terminal, whether the second terminal causes interference to the first terminal; when the second terminal causes interference to the first terminal, determining to perform the recording according to the audio recording start command The operation of the second audio signal;
当所述第二终端不对所述第一终端造成干扰时, 判断不执行根据所述音 频记录开始命令开始记录所述第二音频信号的操作, 以及向所述第一终端发 送响应消息, 所述响应消息用于指示不需要利用所述第二音频信号对所述第 一音频信号进行降噪。  When the second terminal does not cause interference to the first terminal, determining to not perform an operation of starting to record the second audio signal according to the audio recording start command, and sending a response message to the first terminal, The response message is for indicating that the first audio signal does not need to be noise-reduced by the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一音频信号为所述第一终端通过主麦克接收的音频信号; 所述方法还包 括:  The above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the first audio signal is an audio signal received by the first terminal by the primary microphone; the method further includes:
所述第二终端根据所述第二终端与所述第一终端之间的距离, 获得所述 第二音频信号的衰减信息;  Obtaining, by the second terminal, attenuation information of the second audio signal according to a distance between the second terminal and the first terminal;
所述第二终端向所述第一终端发送所述第二音频信号的衰减信息, 以使 得所述第一终端利用所述第二音频信号和所述第二音频信号的衰减信息对 所述第一音频信号进行降噪; 或者  Transmitting, by the second terminal, the attenuation information of the second audio signal to the first terminal, so that the first terminal uses the attenuation information of the second audio signal and the second audio signal to An audio signal is used for noise reduction; or
所述第二终端向所述服务器发送所述第二音频信号的衰减信息, 以使得 所述服务器利用所述第二音频信号和所述第二音频信号的衰减信息对接收 的所述第一终端发送的所述第一音频信号进行降噪。 Transmitting, by the second terminal, attenuation information of the second audio signal to the server, so that The server uses the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
本申请的另一方面, 提供一种终端, 包括:  In another aspect of the present application, a terminal is provided, including:
接收单元, 用于接收第一音频信号, 以及将所述第一音频信号传输给处 理单元;  a receiving unit, configured to receive the first audio signal, and transmit the first audio signal to the processing unit;
发送单元, 用于所述接收单元开始接收第一音频信号时, 向第二终端发 送音频记录开始命令, 所述音频记录开始命令, 用于指示所述第二终端开始 记录所述第二终端生成的第二音频信号; 以及所述接收单元结束接收所述第 一音频信号时, 向所述第二终端发送音频记录结束命令, 所述音频记录结束 命令, 用于指示所述第二终端结束记录所述第二音频信号;  a sending unit, configured to: when the receiving unit starts to receive the first audio signal, send an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second terminal to generate a second audio signal; and when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, the audio recording end command, used to instruct the second terminal to end recording The second audio signal;
所述接收单元,还用于接收所述第二终端发送的已记录的所述第二音频 信号, 以及将所述第二音频信号传输给所述处理单元;  The receiving unit is further configured to receive the recorded second audio signal sent by the second terminal, and transmit the second audio signal to the processing unit;
所述处理单元, 用于利用所述第二音频信号对所述第一音频信号进行降 噪。  The processing unit is configured to perform noise reduction on the first audio signal by using the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述终端还包括同步单元, 用于  The foregoing aspect, and any possible implementation manner, further provide an implementation manner, where the terminal further includes a synchronization unit, where
在所述接收单元开始接收第一音频信号之前, 与所述第二终端执行时间 同步;  Performing time synchronization with the second terminal before the receiving unit starts receiving the first audio signal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间;  The audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。  The audio recording end command includes an end time bird. The end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述接收单元具体用于  The foregoing aspect and any possible implementation manner further provide an implementation manner, where the receiving unit is specifically used to
接收所述第二终端在判断所述第二音频信号对第一音频信号造成干扰 时, 发送的已记录的所述第二音频信号。  Receiving, by the second terminal, the recorded second audio signal that is sent when determining that the second audio signal causes interference to the first audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一音频信号为所述第一终端通过主麦克接收的音频信号; 第三音频信号 为所述接收单元通过辅麦克接收的音频信号;  The aspect as described above, and any possible implementation manner, further provide an implementation manner, the first audio signal is an audio signal received by the first terminal by a primary microphone; and the third audio signal is a The audio signal received by the auxiliary microphone;
所述接收单元, 还用于  The receiving unit is also used for
通过辅麦克接收所述第三音频信号; 所述处理单元, 还用于 Receiving the third audio signal by a secondary microphone; The processing unit is also used for
根据所述第三音频信号和所述第二音频信号, 获得所述第二音频信号的 衰减信息;  Obtaining attenuation information of the second audio signal according to the third audio signal and the second audio signal;
所述处理单元, 具体用于  The processing unit is specifically used for
利用所述第二音频信号和所述第二音频信号的衰减信息,对所述第一音 频信号进行降噪。  The first audio signal is noise-reduced by the attenuation information of the second audio signal and the second audio signal.
本申请的另一方面, 提供一种终端, 包括:  In another aspect of the present application, a terminal is provided, including:
接收单元, 用于接收第一音频信号, 以及将所述第一音频信号传输给发 送单元;  a receiving unit, configured to receive the first audio signal, and transmit the first audio signal to the sending unit;
所述发送单元, 用于所述接收单元开始接收第一音频信号时, 向第二终 端发送音频记录开始命令, 所述音频记录开始命令, 用于指示所述第二终端 开始记录所述第二终端生成的第二音频信号; 以及所述接收单元结束接收所 述第一音频信号时, 向所述第二终端发送音频记录结束命令, 所述音频记录 结束命令, 用于指示所述第二终端结束记录所述第二音频信号;  The sending unit is configured to: when the receiving unit starts to receive the first audio signal, send an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second a second audio signal generated by the terminal; and when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to indicate the second terminal End recording the second audio signal;
所述发送单元, 还用于向服务器发送所述第一音频信号, 以使得所述服 务器利用所述第二音频信号对所述第一音频信号进行降噪。  The sending unit is further configured to send the first audio signal to a server, so that the server uses the second audio signal to perform noise reduction on the first audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所述终端还包括同步单元, 用于  The foregoing aspect, and any possible implementation manner, further provide an implementation manner, where the terminal further includes a synchronization unit, where
在所述接收单元开始接收第一音频信号之前, 与所述第二终端执行时间 同步;  Performing time synchronization with the second terminal before the receiving unit starts receiving the first audio signal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间;  The audio recording start command includes a start time bird, and the start time stamp is used to indicate a time when the second terminal records the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。  The audio recording end command includes an end time bird. The end time stamp is used to indicate the time at which the second terminal records the end of the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述接收单元还用于  An aspect as described above, and any possible implementation manner, further providing an implementation manner, where the receiving unit is further used
接收所述第二终端发送的响应消息, 所述响应消息用于指示不需要利用 所述第二音频信号对所述第一音频信号进行降噪, 所述响应消息为当所述第 二终端确定所述第二终端不对所述第一终端造成干扰时,发送给所述第一终 端。  Receiving a response message sent by the second terminal, where the response message is used to indicate that the first audio signal is not required to be denoised by using the second audio signal, where the response message is determined by the second terminal When the second terminal does not cause interference to the first terminal, the second terminal sends the interference to the first terminal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一音频信号为所述第一终端通过主麦克接收的音频信号; 第三音频信号 为所述接收单元通过辅麦克接收的音频信号; The aspect as described above and any possible implementation manner further provide an implementation manner, where The first audio signal is an audio signal received by the first terminal through the primary microphone; the third audio signal is an audio signal received by the receiving unit through the auxiliary microphone;
所述接收单元, 还用于  The receiving unit is also used for
通过辅麦克接收所述第三音频信号;  Receiving the third audio signal by a secondary microphone;
所述处理单元, 还用于  The processing unit is also used for
根据所述第三音频信号和所述第二音频信号, 获得所述第二音频信号的 衰减信息;  Obtaining attenuation information of the second audio signal according to the third audio signal and the second audio signal;
所述处理单元, 具体用于  The processing unit is specifically used for
利用所述第二音频信号和所述第二音频信号的衰减信息,对所述第一音 频信号进行降噪。  The first audio signal is noise-reduced by the attenuation information of the second audio signal and the second audio signal.
本申请的另一方面, 提供一种终端, 包括:  In another aspect of the present application, a terminal is provided, including:
接收单元, 用于接收第一终端发送的音频记录开始命令, 所述音频记录 开始命令为所述第一终端开始接收第一音频信号时发送给所述终端, 以及将 所述音频记录开始命令传输给处理单元;  a receiving unit, configured to receive an audio recording start command sent by the first terminal, where the audio recording start command is sent to the terminal when the first terminal starts receiving the first audio signal, and the audio recording start command is transmitted Give the processing unit;
所述处理单元, 用于根据所述音频记录开始命令, 开始记录所述终端生 成的第二音频信号;  The processing unit is configured to start recording a second audio signal generated by the terminal according to the audio recording start command;
所述接收单元, 还用于接收所述第一终端发送的音频记录结束命令, 以 及将所述音频记录结束命令传输给所述处理单元, 所述音频记录结束命令为 所述第一终端结束接收所述第一音频信号时发送给所述终端;  The receiving unit is further configured to receive an audio recording end command sent by the first terminal, and transmit the audio recording end command to the processing unit, where the audio recording end command is that the first terminal ends receiving Sending the first audio signal to the terminal;
所述处理单元, 还用于根据所述音频记录结束命令, 结束记录所述第二 音频信号, 以及将所述第二音频信号传输给发送单元;  The processing unit is further configured to end recording the second audio signal according to the audio recording end command, and transmitting the second audio signal to the sending unit;
所述发送单元, 用于  The sending unit is configured to
向所述第一终端发送所述第二音频信号, 以使得所述第一终端利用所述 第二音频信号对所述第一音频信号进行降噪; 或者  Transmitting the second audio signal to the first terminal to cause the first terminal to perform noise reduction on the first audio signal by using the second audio signal; or
向服务器发送所述第二音频信号, 以使得所述服务器利用所述第二音频 信号对接收的所述第一终端发送的所述第一音频信号进行降噪。  And transmitting, by the server, the second audio signal, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述终端还包括同步单元, 用于  The foregoing aspect, and any possible implementation manner, further provide an implementation manner, where the terminal further includes a synchronization unit, where
在所述接收单元接收第一终端发送的音频记录开始命令之前, 与所述第 一终端执行时间同步;  Performing time synchronization with the first terminal before the receiving unit receives the audio recording start command sent by the first terminal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述终端记录所述第二音频信号开始的时间; The audio record start command includes a start time bird, the start time stamp is used to indicate Determining, by the terminal, a time at which the second audio signal starts;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述终端记录所述第二音频信号结束的时间。  The audio recording end command includes an end time bird. The end time stamp is used to indicate the time at which the terminal records the end of the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述处理单元, 还用于  An aspect of the foregoing, and any possible implementation, further providing an implementation manner, where the processing unit is further used
确定所述终端是否对所述第一终端造成干扰;  Determining whether the terminal causes interference to the first terminal;
当所述终端对所述第一终端造成干扰时, 判断执行根据所述音频记录开 始命令开始记录所述第二音频信号的操作;  When the terminal causes interference to the first terminal, determining to perform an operation of starting to record the second audio signal according to the audio recording start command;
当所述终端不对所述第一终端造成干扰时, 判断不执行根据所述音频记 录开始命令开始记录所述第二音频信号的操作, 以及向所述第一终端发送响 应消息, 所述响应消息指示不需要利用所述第二音频信号对所述第一音频信 号进行降噪。  When the terminal does not cause interference to the first terminal, determining to not perform an operation of starting to record the second audio signal according to the audio recording start command, and sending a response message to the first terminal, the response message Instructing that the first audio signal is not required to be noise reduced using the second audio signal.
如上所述的方面和任一可能的实现方式, 进一步提供一种实现方式, 所 述第一音频信号为所述第一终端通过主麦克接收的音频信号;  The above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the first audio signal is an audio signal received by the first terminal through a primary microphone;
所述处理单元, 还用于  The processing unit is also used for
根据所述终端与所述第一终端之间的距离, 获得所述第二音频信号的衰 减信息;  Obtaining attenuation information of the second audio signal according to a distance between the terminal and the first terminal;
所述发送单元, 还用于  The sending unit is also used for
向所述第一终端发送所述第二音频信号的衰减信息, 以使得所述第一终 端利用所述第二音频信号和所述第二音频信号的衰减信息对所述第一音频 信号进行降噪; 或者  Transmitting the attenuation information of the second audio signal to the first terminal, so that the first terminal lowers the first audio signal by using the attenuation information of the second audio signal and the second audio signal Noise; or
向所述服务器发送所述第二音频信号的衰减信息, 以使得所述服务器利 用所述第二音频信号和所述第二音频信号的衰减信息对接收的所述第一终 端发送的所述第一音频信号进行降噪。  Transmitting the attenuation information of the second audio signal to the server, so that the server transmits the first terminal that is received by the first terminal by using the attenuation information of the second audio signal and the second audio signal An audio signal is used for noise reduction.
由上述技术方案可知, 本申请实施例一方面, 通过第一终端开始接收第 一音频信号时, 向第二终端发送音频记录开始命令, 所述音频记录开始命 令, 用于指示所述第二终端开始记录所述第二终端生成的第二音频信号, 以 及所述第一终端结束接收所述第一音频信号时, 向所述第二终端发送音频记 录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所述 第二音频信号,使得所述第一终端接收所述第二终端发送的已记录的所述第 二音频信号, 并能够利用所述第二音频信号对所述第一音频信号进行降噪, 能够避免现有技术中由于对噪声进行抑制的同时也对语音信号进行了一定 的抑制的问题, 从而提高了降噪之后的声音质量和降噪的可靠性。 According to the foregoing technical solution, an embodiment of the present application, when the first terminal starts receiving the first audio signal, sends an audio recording start command to the second terminal, where the audio recording start command is used to indicate the second terminal. And starting to record the second audio signal generated by the second terminal, and when the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording ends the command, Instructing the second terminal to end recording the second audio signal, so that the first terminal receives the recorded second audio signal sent by the second terminal, and can utilize the second audio signal pair The first audio signal is noise-reduced, The problem of suppressing noise in the prior art while suppressing the speech signal to a certain extent can be avoided, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
由上述技术方案可知, 本申请实施例另一方面, 通过第一终端开始接收 第一音频信号时, 向第二终端发送音频记录开始命令, 所述音频记录开始命 令, 用于指示所述第二终端开始记录所述第二终端生成的第二音频信号, 以 及所述第一终端结束接收所述第一音频信号时, 向所述第二终端发送音频记 录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所述 第二音频信号, 所述第一终端进而向服务器发送所述第一音频信号, 以使得 所述服务器能够利用所述第二音频信号对所述第一音频信号进行降噪, 能够 避免现有技术中由于对噪声进行抑制的同时也对语音信号进行了一定的抑 制的问题, 从而提高了降噪之后的声音质量和降噪的可靠性。  According to the foregoing technical solution, in another aspect of the embodiment of the present application, when the first terminal starts receiving the first audio signal, the audio recording start command is sent to the second terminal, where the audio recording start command is used to indicate the second The terminal starts to record the second audio signal generated by the second terminal, and when the first terminal ends receiving the first audio signal, sends an audio recording end command to the second terminal, where the audio recording ends the command, Instructing the second terminal to end recording the second audio signal, the first terminal further transmitting the first audio signal to a server, so that the server can use the second audio signal to the first The noise reduction of an audio signal can avoid the problem of suppressing noise and suppressing the speech signal in the prior art, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
由上述技术方案可知, 本申请实施例另一方面, 通过第二终端接收第一 终端发送的音频记录开始命令, 并根据所述音频记录开始命令, 开始记录所 述第二终端生成的第二音频信号, 所述音频记录开始命令为所述第一终端开 始接收第一音频信号时发送给所述第二终端, 以及所述第二终端接收所述第 一终端发送的音频记录结束命令, 并根据所述音频记录结束命令, 结束记录 所述第二音频信号, 所述音频记录结束命令为所述第一终端结束接收所述第 一音频信号时发送给所述第二终端, 所述第二终端进而向所述第一终端或服 务器发送所述第二音频信号, 以使得所述第一终端能够利用所述第二音频信 号对所述第一音频信号进行降噪, 或者所述服务器能够利用所述第二音频信 号对接收的所述第一终端发送的所述第一音频信号进行降噪, 能够避免现有 技术中由于对噪声进行抑制的同时也对语音信号进行了一定的抑制的问 题, 从而提高了降噪之后的声音质量和降噪的可靠性。 附图说明 为了更清楚地说明本申请实施例或现有技术中的技术方案, 下面将对实 施例描述中所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的 附图是本申请的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造 性劳动性的前提下, 还可以根据这些附图获得其他的附图。  According to the foregoing technical solution, the second terminal receives an audio recording start command sent by the first terminal, and starts recording the second audio generated by the second terminal according to the audio recording start command. a signal, the audio recording start command is sent to the second terminal when the first terminal starts receiving the first audio signal, and the second terminal receives the audio recording end command sent by the first terminal, and according to The audio recording end command ends recording the second audio signal, and the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal, and the second terminal And transmitting the second audio signal to the first terminal or the server, so that the first terminal can perform noise reduction on the first audio signal by using the second audio signal, or the server can utilize the Decoding, by the second audio signal, the received first audio signal sent by the first terminal, which can be avoided In the prior art, the noise is suppressed and the speech signal is also suppressed to some extent, thereby improving the sound quality and the reliability of noise reduction after noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description of the drawings used in the description of the embodiments will be briefly described below. Some embodiments of the present application can also obtain other figures from those skilled in the art without departing from the drawings.
图 1为本申请一实施例提供的降噪方法的流程示意图; 图 2为本申请另- -实施例提供的降噪方法的流程示意图 1 is a schematic flowchart of a noise reduction method according to an embodiment of the present application; 2 is a schematic flow chart of a noise reduction method provided by another embodiment of the present application
图 3为本申请另- -实施例提供的降噪方法的流程示意图  FIG. 3 is a schematic flow chart of a noise reduction method provided by another embodiment of the present application
图 4为本申请另- -实施例提供的终端的结构示意图  4 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
图 5为本申请另- -实施例提供的终端的结构示意图  FIG. 5 is a schematic structural diagram of a terminal provided by another embodiment of the present application
图 6为本申请另- -实施例提供的终端的结构示意图  6 is a schematic structural diagram of a terminal provided by another embodiment of the present application.
图 7为本申请另- -实施例提供的终端的结构示意图  FIG. 7 is a schematic structural diagram of a terminal provided by another embodiment of the present application
图 8为本申请另- -实施例提供的终端的结构示意图  FIG. 8 is a schematic structural diagram of a terminal provided by another embodiment of the present application
图 9为本申请另- -实施例提供的终端的结构示意图  FIG. 9 is a schematic structural diagram of a terminal provided by another embodiment of the present application
图 10为本申请另一实施例提供的终端的结构示意图;  FIG. 10 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure;
图 11为本申请另一实施例提供的终端的结构示意图;  FIG. 11 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure;
图 12为本申请另一实施例提供的终端的结构示意图。  FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
具体实施方式 为使本申请实施例的目的、 技术方案和优点更加清楚, 下面将结合本申 请实施例中的附图, 对本申请实施例中的技术方案进行清楚地描述, 显然, 所描述的实施例是本申请一部分实施例, 而不是全部的实施例。 基于本申请 中的实施例, 本领域普通技术人员在没有作出创造性劳动前提下所获得的所 有其他实施例, 都属于本申请保护的范围。 The technical solutions in the embodiments of the present application are clearly described in conjunction with the accompanying drawings in the embodiments of the present application, and the described embodiments are clearly described. Examples are some embodiments of the present application, and not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present application.
另外, 本文中术语"和 /或", 仅仅是一种描述关联对象的关联关系, 表示 可以存在三种关系, 例如, A和 /或 B, 可以表示: 单独存在 A, 同时存在 A 和 B, 单独存在 B这三种情况。 另外, 本文中字符 ", —般表示前后关联对 象是一种"或"的关系。  In addition, the term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate: A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "," in this paper, generally means that the contextual object is an "or" relationship.
图 1为本申请一实施例提供的降噪方法的流程示意图, 如图 1所示。 该方法包括:  FIG. 1 is a schematic flowchart of a noise reduction method according to an embodiment of the present disclosure, as shown in FIG. 1 . The method includes:
101、 第一终端开始接收第一音频信号时, 向第二终端发送音频记录开 始命令, 所述音频记录开始命令, 用于指示所述第二终端开始记录所述第二 终端生成的第二音频信号。  The first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio generated by the second terminal. signal.
102、 所述第一终端结束接收所述第一音频信号时, 向所述第二终端发 送音频记录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束 记录所述第二音频信号。  When the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal.
103、 所述第一终端接收所述第二终端发送的已记录的所述第二音频信 号, 利用所述第二音频信号对所述第一音频信号进行降噪。 103. The first terminal receives the recorded second audio message sent by the second terminal. No. the first audio signal is noise-reduced by the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号中可 以包含所述第二音频信号经过传输介质到达所述第一终端时的信号即噪 声。 那么, 在 1 03中, 所述第一终端具体可以对接收的所述第一音频信号 进行信号分析, 经过信号分析之后, 确定所述第一音频信号中包含所述噪 声, 则可以利用所述第二音频信号与所述第一音频信号进行降噪(即降噪相 关运算), 以减少所述第一音频信号中所包含的所述噪声, 从而能够实现降 噪。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, in the first frame, the first terminal may perform signal analysis on the received first audio signal, and after determining, by the signal analysis, determining that the first audio signal includes the noise, The second audio signal is subjected to noise reduction (ie, noise reduction related operation) with the first audio signal to reduce the noise included in the first audio signal, thereby enabling noise reduction.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号中可 以不包含所述第二音频信号经过传输介质到达所述第一终端时的信号即噪 声。 那么, 在 1 03中, 所述第一终端具体可以对接收的所述第一音频信号 进行信号分析, 经过信号分析之后, 确定所述第一音频信号中不包含所述噪 声, 则可以利用所述第二音频信号与所述第一音频信号进行降噪(即降噪相 关运算), 由于所述第一音频信号中不包含所述噪声, 因此所述第一终端所 执行的降噪则不会对所述第一音频信号产生任何影响, 以继续保持所述第一 音频信号不受所述第二音频信号的影响。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may not include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, in the first frame, the first terminal may perform signal analysis on the received first audio signal, and after determining the signal, determining that the first audio signal does not include the noise, Decoding the second audio signal with the first audio signal (ie, a noise reduction correlation operation), since the noise is not included in the first audio signal, the noise reduction performed by the first terminal is not Any effect is generated on the first audio signal to continue to maintain the first audio signal unaffected by the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 在所述第一终端开始接 收第一音频信号之前, 所述第一终端还可以进一步与所述第二终端执行时间 同步。  Optionally, in a possible implementation manner of the embodiment, before the first terminal starts to receive the first audio signal, the first terminal may further perform time synchronization with the second terminal.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述第二终端记录所述第二音频信号开始的时间; 所述 音频记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指 示所述第二终端记录所述第二音频信号结束的时间。  Correspondingly, the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 在 1 03中, 所述第一 终端, 具体可以接收所述第二终端在判断所述第二音频信号对第一音频信号 造成干扰时, 发送的已记录的所述第二音频信号。  Optionally, in a possible implementation manner of this embodiment, in the first terminal, the first terminal may receive the second terminal, determining that the second audio signal interferes with the first audio signal. When the second audio signal that has been recorded is transmitted.
具体地, 所述第二终端具体可以确定所述第二终端是否对所述第一终端 造成干扰; 当所述第二终端对所述第一终端造成干扰时, 判断执行根据所述 音频记录开始命令开始记录所述第二音频信号的操作; 当所述第二终端不对 所述第一终端造成干扰时, 判断不执行根据所述音频记录开始命令开始记录 所述第二音频信号的操作, 以及向所述第一终端发送响应消息, 所述响应消 息用于指示不需要利用所述第二音频信号对所述第一音频信号进行降噪。 Specifically, the second terminal may specifically determine whether the second terminal causes interference to the first terminal; when the second terminal causes interference to the first terminal, determining to perform according to the The audio recording start command starts the operation of recording the second audio signal; when the second terminal does not cause interference to the first terminal, determining to not perform the recording of the second audio signal according to the audio recording start command And transmitting a response message to the first terminal, the response message being used to indicate that the first audio signal is not required to be noise-reduced by the second audio signal.
例如, 所述第二终端具体可以利用体感识别技术或定位技术, 确定所述 第二终端是否对所述第一终端造成干扰。 具体地, 所述第二终端具体可以利 用体感识别技术或定位技木 判断所述第二终端与所述第一终端之间的距离 是否小于预先设置的距离阔值, 如果小于或等于所述距离阔值, 所述第二终 端则可以判断执行根据所述音频记录开始命令开始记录所述第二音频信号 的操作; 如果大于所述距离阔值, 所述第二终端则可以判断不执行根据所述 音频记录开始命令开始记录所述第二音频信号的操作, 以及向所述第一终端 发送所述响应消息。  For example, the second terminal may specifically determine whether the second terminal causes interference to the first terminal by using a somatosensory identification technology or a positioning technology. Specifically, the second terminal may specifically determine, by using a somatosensory identification technology or a positioning technology, whether a distance between the second terminal and the first terminal is less than a preset distance threshold, if the distance is less than or equal to the distance The second terminal may determine to perform an operation of recording the second audio signal according to the audio recording start command; if the distance is greater than the distance threshold, the second terminal may determine not to perform the The audio recording start command starts the operation of recording the second audio signal, and transmits the response message to the first terminal.
可选地, 在本实施例的一个可能的实现方式中, 所述第一终端包括主麦 克和辅麦克两个麦克, 一般来说, 主麦克设置在第一终端的正面, 例如, 与 用户的发生器官较近的地方, 辅麦克设置在第一终端的背面, 例如, 与用户 的发生器官较远的地方。 所述第一音频信号为所述第一终端通过主麦克接收 的音频信号, 第三音频信号为所述第一终端通过辅麦克接收的音频信号。 所 述第一终端继而根据所述第三音频信号和所述第二音频信号, 获得所述第二 音频信号的衰减信息。  Optionally, in a possible implementation manner of the embodiment, the first terminal includes two microphones, a primary microphone and a secondary microphone. Generally, the primary microphone is disposed on a front side of the first terminal, for example, with a user. Where the organ is relatively close, the secondary microphone is placed on the back of the first terminal, for example, where it is far from the user's organ. The first audio signal is an audio signal received by the first terminal through a primary microphone, and the third audio signal is an audio signal received by the first terminal through a secondary microphone. The first terminal then obtains attenuation information of the second audio signal based on the third audio signal and the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述第三音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。 由于主麦克和辅麦克所处的位置不同, 如果用户的发生 器官与主麦克更靠近, 那么, 与所述第一音频信号中所包括的用于语音控制 的语音数据、用户语音通话的语音数据或用于语音录制的语音数据的信号强 度相比, 所述第三音频信号中所包括的用于语音控制的语音数据、 用户语音 通话的语音数据或用于语音录制的语音数据的信号强度要小一点。  Optionally, in a possible implementation manner of the embodiment, the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
相应地, 在 1 03中, 所述第一终端具体可以利用所述第二音频信号和 所述第二音频信号的衰减信息, 对所述第一音频信号进行降噪。  Correspondingly, in the first frame, the first terminal may specifically perform noise reduction on the first audio signal by using the attenuation information of the second audio signal and the second audio signal.
本实施例中, 通过第一终端开始接收第一音频信号时, 向第二终端发 送音频记录开始命令, 所述音频记录开始命令, 用于指示所述第二终端开 始记录所述第二终端生成的第二音频信号, 以及所述第一终端结束接收所 述第一音频信号时, 向所述第二终端发送音频记录结束命令, 所述音频记 录结束命令, 用于指示所述第二终端结束记录所述第二音频信号, 使得所 述第一终端接收所述第二终端发送的已记录的所述第二音频信号, 并能够 利用所述第二音频信号对所述第一音频信号进行降噪, 能够避免现有技术 中由于对噪声进行抑制的同时也对语音信号进行了一定的抑制的问题, 从 而提高了降噪之后的声音质量和降噪的可靠性。 In this embodiment, when the first terminal starts to receive the first audio signal, the audio recording start command is sent to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second terminal. Second audio signal, and the first terminal ends receiving When the first audio signal is described, the audio recording end command is sent to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal, so that the first terminal receives The second audio signal that is recorded by the second terminal, and capable of performing noise reduction on the first audio signal by using the second audio signal, can avoid the noise suppression in the prior art The problem of the speech signal being suppressed is also suppressed, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
图 2为本申请另一实施例提供的降噪方法的流程示意图, 如图 2所示。 该方法包括:  FIG. 2 is a schematic flowchart of a noise reduction method according to another embodiment of the present application, as shown in FIG. 2 . The method includes:
201、 第一终端开始接收第一音频信号时, 向第二终端发送音频记录开 始命令, 所述音频记录开始命令, 用于指示所述第二终端开始记录所述第二 终端生成的第二音频信号。  The first terminal starts to receive the first audio signal, and sends an audio recording start command to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second audio generated by the second terminal. signal.
202、 所述第一终端结束接收所述第一音频信号时, 向所述第二终端发 送音频记录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束 记录所述第二音频信号。  202. When the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal.
203、 所述第一终端向服务器发送所述第一音频信号, 以使得所述服务 器利用所述第二音频信号对所述第一音频信号进行降噪。  203. The first terminal sends the first audio signal to a server, so that the server uses the second audio signal to perform noise reduction on the first audio signal.
其中, 所述第二音频信号为所述第二终端在结束记录所述第二音频信号 之后发送给所述服务器。  The second audio signal is sent to the server by the second terminal after the end of recording the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号中可 以包含所述第二音频信号经过传输介质到达所述第一终端时的信号即噪 声。 那么, 所述服务器具体可以对接收的所述第一音频信号进行信号分析, 经过信号分析之后, 确定所述第一音频信号中包含所述噪声, 则可以利用所 述第二音频信号与所述第一音频信号进行降噪(即降噪相关运算), 以减少 所述第一音频信号中所包含的所述噪声, 从而能够实现降噪。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, the server may perform signal analysis on the received first audio signal, and after determining, by the signal analysis, determining that the first audio signal includes the noise, the second audio signal may be utilized. The first audio signal is subjected to noise reduction (i.e., noise reduction correlation operation) to reduce the noise contained in the first audio signal, thereby enabling noise reduction.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号中可 以不包含所述第二音频信号经过传输介质到达所述第一终端时的信号即噪 声。 那么, 所述服务器具体可以对接收的所述第一音频信号进行信号分析, 经过信号分析之后, 确定所述第一音频信号中不包含所述噪声, 则可以利用 所述第二音频信号与所述第一音频信号进行降噪(即降噪相关运算), 由于 所述第一音频信号中不包含所述噪声, 因此所述服务器所执行的降噪则不会 对所述第一音频信号产生任何影响, 以继续保持所述第一音频信号不受所述 第二音频信号的影响。 Optionally, in a possible implementation manner of the embodiment, the first audio signal may not include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, the server may perform signal analysis on the received first audio signal, and after determining the signal, determining that the first audio signal does not include the noise, may be utilized. The second audio signal performs noise reduction (ie, noise reduction correlation operation) with the first audio signal, and since the noise is not included in the first audio signal, the noise reduction performed by the server does not Any effect is generated on the first audio signal to continue to maintain the first audio signal unaffected by the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 在所述第一终端开始接 收第一音频信号之前, 所述第一终端还可以进一步与所述第二终端执行时间 同步。  Optionally, in a possible implementation manner of the embodiment, before the first terminal starts to receive the first audio signal, the first terminal may further perform time synchronization with the second terminal.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述第二终端记录所述第二音频信号开始的时间; 所述 音频记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指 示所述第二终端记录所述第二音频信号结束的时间。  Correspondingly, the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述第一终端包括主麦 克和辅麦克两个麦克, 一般来说, 主麦克设置在第一终端的正面, 例如, 与 用户的发生器官较近的地方, 辅麦克设置在第一终端的背面, 例如, 与用户 的发生器官较远的地方。 所述第一音频信号为所述第一终端通过主麦克接收 的音频信号, 第三音频信号为所述第一终端通过辅麦克接收的音频信号。 所 述第一终端则可以将所述第三音频信号发送给所述服务器, 以使得所述服务 器根据所述第三音频信号和所述第二音频信号, 获得所述第二音频信号的衰 减信息, 以及利用所述第二音频信号和所述第二音频信号的衰减信息, 对所 述第一音频信号进行降噪。  Optionally, in a possible implementation manner of the embodiment, the first terminal includes two microphones, a primary microphone and a secondary microphone. Generally, the primary microphone is disposed on a front side of the first terminal, for example, with a user. Where the organ is relatively close, the secondary microphone is placed on the back of the first terminal, for example, where it is far from the user's organ. The first audio signal is an audio signal received by the first terminal through a primary microphone, and the third audio signal is an audio signal received by the first terminal through a secondary microphone. The first terminal may send the third audio signal to the server, so that the server obtains the attenuation information of the second audio signal according to the third audio signal and the second audio signal. And using the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the first audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述第三音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。 由于主麦克和辅麦克所处的位置不同, 如果用户的发生 器官与主麦克更靠近, 那么, 与所述第一音频信号中所包括的用于语音控制 的语音数据、用户语音通话的语音数据或用于语音录制的语音数据的信号强 度相比, 所述第三音频信号中所包括的用于语音控制的语音数据、 用户语音 通话的语音数据或用于语音录制的语音数据的信号强度要小一点。  Optionally, in a possible implementation manner of the embodiment, the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
本实施例中, 通过第一终端开始接收第一音频信号时, 向第二终端发送 音频记录开始命令, 所述音频记录开始命令, 用于指示所述第二终端开始记 录所述第二终端生成的第二音频信号, 以及所述第一终端结束接收所述第一 音频信号时, 向所述第二终端发送音频记录结束命令, 所述音频记录结束命 令, 用于指示所述第二终端结束记录所述第二音频信号, 所述第一终端进而 向服务器发送所述第一音频信号, 以使得所述服务器能够利用所述第二音频 信号对所述第一音频信号进行降噪, 能够避免现有技术中由于对噪声进行抑 制的同时也对语音信号进行了一定的抑制的问题从而提高了降噪之后的声 音质量和降噪的可靠性。 In this embodiment, when the first terminal starts to receive the first audio signal, the audio recording start command is sent to the second terminal, where the audio recording start command is used to instruct the second terminal to start recording the second terminal. a second audio signal, and when the first terminal ends receiving the first audio signal, sending an audio recording end command to the second terminal, the audio recording ends In order to indicate that the second terminal ends recording the second audio signal, the first terminal further sends the first audio signal to a server, so that the server can utilize the second audio signal pair The noise reduction of the first audio signal can avoid the problem of suppressing noise and suppressing the speech signal in the prior art, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
图 3为本申请另一实施例提供的降噪方法的流程示意图, 如图 3所示。 该方法包括:  FIG. 3 is a schematic flowchart of a noise reduction method according to another embodiment of the present application, as shown in FIG. 3. The method includes:
301、 第二终端接收第一终端发送的音频记录开始命令, 所述音频记录 开始命令为所述第一终端开始接收第一音频信号时发送给所述第二终端。  301. The second terminal receives an audio recording start command sent by the first terminal, where the audio recording start command is sent to the second terminal when the first terminal starts to receive the first audio signal.
302、 所述第二终端根据所述音频记录开始命令, 开始记录所述第二终 端生成的第二音频信号。  302. The second terminal starts recording a second audio signal generated by the second terminal according to the audio recording start command.
303、 所述第二终端接收所述第一终端发送的音频记录结束命令, 所述 音频记录结束命令为所述第一终端结束接收所述第一音频信号时发送给所 述第二终端。  303. The second terminal receives an audio recording end command sent by the first terminal, where the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal.
304、 所述第二终端根据所述音频记录结束命令, 结束记录所述第二音 频信号。  304. The second terminal ends recording the second audio signal according to the audio recording end command.
305、 所述第二终端向所述第一终端发送所述第二音频信号, 以使得所 述第一终端利用所述第二音频信号对所述第一音频信号进行降噪; 或者 所述第二终端向服务器发送所述第二音频信号, 以使得所述服务器利用 所述第二音频信号对接收的所述第一终端发送的所述第一音频信号进行降 噪。  305. The second terminal sends the second audio signal to the first terminal, so that the first terminal performs noise reduction on the first audio signal by using the second audio signal. The second terminal sends the second audio signal to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号中可 以包含所述第二音频信号经过传输介质到达所述第一终端时的信号即噪 声。 那么, 所述第一终端或所述服务器具体可以对接收的所述第一音频信号 进行信号分析, 经过信号分析之后, 确定所述第一音频信号中包含所述噪 声, 则可以利用所述第二音频信号与所述第一音频信号进行降噪(即降噪相 关运算), 以减少所述第一音频信号中所包含的所述噪声, 从而能够实现降 噪。 可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号中可 以不包含所述第二音频信号经过传输介质到达所述第一终端时的信号即噪 声。 那么, 所述第一终端或所述服务器具体可以对接收的所述第一音频信号 进行信号分析, 经过信号分析之后, 确定所述第一音频信号中不包含所述噪 声, 则可以利用所述第二音频信号与所述第一音频信号进行降噪(即降噪相 关运算), 由于所述第一音频信号中不包含所述噪声, 因此所述第一终端或 所述服务器所执行的降噪则不会对所述第一音频信号产生任何影响, 以继续 保持所述第一音频信号不受所述第二音频信号的影响。 Optionally, in a possible implementation manner of the embodiment, the first audio signal may include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, the first terminal or the server may perform signal analysis on the received first audio signal, and after determining, by using the signal, determining that the first audio signal includes the noise, The second audio signal is subjected to noise reduction (ie, noise reduction related operation) with the first audio signal to reduce the noise included in the first audio signal, thereby enabling noise reduction. Optionally, in a possible implementation manner of the embodiment, the first audio signal may not include a signal, that is, a noise when the second audio signal reaches the first terminal through a transmission medium. Then, the first terminal or the server may perform signal analysis on the received first audio signal, and after determining, after the signal analysis, determining that the first audio signal does not include the noise, The second audio signal performs noise reduction (ie, noise reduction related operation) with the first audio signal, and the first terminal or the server performs the lowering because the noise is not included in the first audio signal. Noise does not have any effect on the first audio signal to continue to maintain the first audio signal unaffected by the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 在所述第一终端开始接 收第一音频信号之前, 所述第二终端还可以进一步与所述第一终端执行时间 同步。  Optionally, in a possible implementation manner of the embodiment, before the first terminal starts to receive the first audio signal, the second terminal may further perform time synchronization with the first terminal.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述第二终端记录所述第二音频信号开始的时间; 所述 音频记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指 示所述第二终端记录所述第二音频信号结束的时间。  Correspondingly, the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 在所述第二终端根据所 述音频记录开始命令开始记录所述第二音频信号之前, 所述第二终端还可以 进一步确定所述第二终端是否对所述第一终端造成干扰 当所述第二终端对 所述第一终端造成干扰时, 所述第二终端判断执行根据所述音频记录开始命 令开始记录所述第二音频信号的操作; 当所述第二终端不对所述第一终端造 成干扰时, 所述第二终端判断不执行根据所述音频记录开始命令开始记录所 述第二音频信号的操作, 以及向所述第一终端或所述服务器发送响应消息, 所述响应消息用于指示不需要利用所述第二音频信号对所述第一音频信号 进行降噪。  Optionally, in a possible implementation manner of this embodiment, before the second terminal starts recording the second audio signal according to the audio recording start command, the second terminal may further determine the Whether the second terminal causes interference to the first terminal, when the second terminal causes interference to the first terminal, the second terminal determines to perform to start recording the second audio signal according to the audio recording start command. The operation of the second terminal is not performed when the second terminal does not cause interference to the first terminal, and the operation of starting to record the second audio signal according to the audio recording start command is performed A terminal or the server sends a response message, the response message is used to indicate that the first audio signal does not need to be noise-reduced by the second audio signal.
例如, 所述第二终端具体可以利用体感识别技术或定位技术, 确定所述 第二终端是否对所述第一终端造成干扰。 具体地, 所述第二终端具体可以利 用体感识别技术或定位技木 判断所述第二终端与所述第一终端之间的距离 是否小于预先设置的距离阔值, 如果小于或等于所述距离阔值, 所述第二终 端则可以判断执行根据所述音频记录开始命令开始记录所述第二音频信号 的操作; 如果大于所述距离阔值, 所述第二终端则可以判断不执行根据所述 音频记录开始命令开始记录所述第二音频信号的操作, 以及向所述第一终端 发送所述响应消息。 For example, the second terminal may specifically determine whether the second terminal causes interference to the first terminal by using a somatosensory identification technology or a positioning technology. Specifically, the second terminal may specifically determine, by using a somatosensory identification technology or a positioning technology, whether a distance between the second terminal and the first terminal is less than a preset distance threshold, if the distance is less than or equal to the distance The second terminal may determine to perform an operation of recording the second audio signal according to the audio recording start command; if the distance is greater than the distance threshold, the second terminal may determine not to perform the The audio recording start command starts the operation of recording the second audio signal, and to the first terminal Send the response message.
可选地, 在本实施例的一个可能的实现方式中, 所述第二终端还可以进 一步根据所述第二终端与所述第一终端之间的距离, 获得所述第二音频信号 的衰减信息; 然后, 所述第二终端则可以向所述第一终端发送所述第二音频 信号的衰减信息, 以使得所述第一终端利用所述第二音频信号和所述第二音 频信号的衰减信息对所述第一音频信号进行降噪 或者所述第二终端则可以 向所述服务器发送所述第二音频信号的衰减信息, 以使得所述服务器利用所 述第二音频信号和所述第二音频信号的衰减信息对接收的所述第一终端发 送的所述第一音频信号进行降噪。  Optionally, in a possible implementation manner of the embodiment, the second terminal may further obtain the attenuation of the second audio signal according to the distance between the second terminal and the first terminal. Information; then, the second terminal may send the attenuation information of the second audio signal to the first terminal, so that the first terminal utilizes the second audio signal and the second audio signal Attenuating information denoising the first audio signal or the second terminal may send attenuation information of the second audio signal to the server, such that the server utilizes the second audio signal and the The attenuation information of the second audio signal denoises the received first audio signal sent by the first terminal.
例如, 所述第二终端具体可以利用体感识别技术或定位技术, 确定所述 第二终端与所述第一终端之间的距离, 并根据所述距离获得所述第二音频信 号的衰减信息。  For example, the second terminal may specifically determine a distance between the second terminal and the first terminal by using a somatosensory recognition technology or a positioning technology, and obtain attenuation information of the second audio signal according to the distance.
本实施例中, 通过第二终端接收第一终端发送的音频记录开始命令, 并 根据所述音频记录开始命令, 开始记录所述第二终端生成的第二音频信号, 所述音频记录开始命令为所述第一终端开始接收第一音频信号时发送给所 述第二终端, 以及所述第二终端接收所述第一终端发送的音频记录结束命 令, 并根据所述音频记录结束命令, 结束记录所述第二音频信号, 所述音频 记录结束命令为所述第一终端结束接收所述第一音频信号时发送给所述第 二终端, 所述第二终端进而向所述第一终端或服务器发送所述第二音频信 号, 以使得所述第一终端能够利用所述第二音频信号对所述第一音频信号进 行降噪, 或者所述服务器能够利用所述第二音频信号对接收的所述第一终端 发送的所述第一音频信号进行降噪, 能够避免现有技术中由于对噪声进行抑 制的同时也对语音信号进行了一定的抑制的问题从而提高了降噪之后的声 音质量和降噪的可靠性。  In this embodiment, the second terminal receives the audio recording start command sent by the first terminal, and starts recording the second audio signal generated by the second terminal according to the audio recording start command, where the audio recording start command is The first terminal starts to receive the first audio signal, and the second terminal receives the audio recording end command sent by the first terminal, and ends the recording according to the audio recording end command. The second audio signal, the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal, and the second terminal further sends the first terminal or the server Transmitting the second audio signal to enable the first terminal to perform noise reduction on the first audio signal by using the second audio signal, or the server can utilize the second audio signal to receive the received Decoding the first audio signal sent by the first terminal to avoid noise suppression in the prior art. When the voice signal is also some question suppression thereby improving the reliability of voice quality and noise reduction after noise reduction.
需要说明的是, 对于前述的各方法实施例, 为了简单描述, 故将其都表 述为一系列的动作组合, 但是本领域技术人员应该知悉, 本申请并不受所描 述的动作顺序的限制, 因为依据本申请, 某些步骤可以釆用其他顺序或者同 时进行。 其次, 本领域技术人员也应该知悉, 说明书中所描述的实施例均属 于优选实施例, 所涉及的动作和模块并不一定是本申请所必须的。  It should be noted that, for the foregoing method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or concurrently. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.
在上述实施例中, 对各个实施例的描述都各有侧重, 某个实施例中没有 详述的部分, 可以参见其他实施例的相关描述。 图 4为本申请另一实施例提供的终端的结构示意图, 如图 4所示, 本 实施例的终端可以包括接收单元 41、 发送单元 42和处理单元 43。 其中, 接收单元 41 , 用于接收第一音频信号, 以及将所述第一音频信号传输给处 理单元 43; 发送单元 42, 用于所述接收单元 41开始接收第一音频信号时, 向所述第二终端发送音频记录开始命令, 所述音频记录开始命令, 用于指示 所述第二终端开始记录所述第二终端生成的第二音频信号; 以及所述接收单 元 41结束接收所述第一音频信号时, 向所述第二终端发送音频记录结束命 令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所述第二音频 信号; 所述接收单元 41 , 还用于接收所述第二终端发送的已记录的所述第 二音频信号, 以及将所述第二音频信号传输给所述处理单元 43; 所述处理 单元 43 , 用于利用所述第二音频信号对所述第一音频信号进行降噪。 In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in an embodiment can be referred to the related descriptions of other embodiments. FIG. 4 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure. As shown in FIG. 4, the terminal in this embodiment may include a receiving unit 41, a sending unit 42, and a processing unit 43. The receiving unit 41 is configured to receive the first audio signal, and transmit the first audio signal to the processing unit 43. The sending unit 42 is configured to: when the receiving unit 41 starts receiving the first audio signal, to the The second terminal sends an audio recording start command, the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal; and the receiving unit 41 ends receiving the first And the audio signal ending command is sent to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal; the receiving unit 41 is further configured to receive The second audio signal that is recorded by the second terminal, and the second audio signal is transmitted to the processing unit 43; the processing unit 43 is configured to use the second audio signal pair The first audio signal is described for noise reduction.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 如图 5所示, 本实施例 提供的终端还可以进一步包括同步单元 51, 用于在所述接收单元 41开始接 收第一音频信号之前, 与所述第二终端执行时间同步。  Optionally, in a possible implementation manner of this embodiment, as shown in FIG. 5, the terminal provided in this embodiment may further include a synchronization unit 51, configured to start receiving the first audio signal at the receiving unit 41. Previously, time synchronization was performed with the second terminal.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述第二终端记录所述第二音频信号开始的时间; 所述 音频记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指 示所述第二终端记录所述第二音频信号结束的时间。  Correspondingly, the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述接收单元 41还可 以进一步接收所述第二终端发送的响应消息, 所述响应消息用于指示不需要 利用所述第二音频信号对所述第一音频信号进行降噪, 所述响应消息为当所 述第二终端确定所述第二终端不对所述第一终端造成干扰时,发送给所述第 一终端。  Optionally, in a possible implementation manner of the embodiment, the receiving unit 41 may further receive a response message sent by the second terminal, where the response message is used to indicate that the second audio does not need to be utilized. The signal is used to perform noise reduction on the first audio signal, and the response message is sent to the first terminal when the second terminal determines that the second terminal does not cause interference to the first terminal.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号为所 述接收单元 41通过主麦克接收的音频信号; 第三音频信号为所述接收单元 41通过辅麦克接收的音频信号; 所述接收单元 41还可以进一步通过辅麦克 接收所述第三音频信号, 以及将所述第三音频信号传输给所述处理单元 43; 相应地, 所述处理单元 43还可以进一步根据所述第三音频信号和所述 第二音频信号, 获得所述第二音频信号的衰减信息。 具体地, 所述处理单元Optionally, in a possible implementation manner of the embodiment, the first audio signal is an audio signal received by the receiving unit 41 by a primary microphone; and the third audio signal is received by the receiving unit 41 by a secondary microphone. The receiving unit 41 may further receive the third audio signal through the auxiliary microphone, and transmit the third audio signal to the processing unit 43; correspondingly, the processing unit 43 may further According to the third audio signal and the The second audio signal obtains attenuation information of the second audio signal. Specifically, the processing unit
43具体可以利用所述第二音频信号和所述第二音频信号的衰减信息, 对所 述第一音频信号进行降噪(即降噪相关运算), 以减少所述第一音频信号中 所包含的所述噪声, 从而能够实现降噪。 Specifically, the second audio signal and the attenuation information of the second audio signal may be used to perform noise reduction (ie, noise reduction correlation operation) on the first audio signal to reduce inclusion in the first audio signal. The noise is such that noise reduction can be achieved.
可选地, 在本实施例的一个可能的实现方式中, 所述第三音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。 由于主麦克和辅麦克所处的位置不同, 如果用户的发生 器官与主麦克更靠近, 那么, 与所述第一音频信号中所包括的用于语音控制 的语音数据、用户语音通话的语音数据或用于语音录制的语音数据的信号强 度相比, 所述第三音频信号中所包括的用于语音控制的语音数据、 用户语音 通话的语音数据或用于语音录制的语音数据的信号强度要小一点。  Optionally, in a possible implementation manner of the embodiment, the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
本实施例中, 终端通过发送单元在接收单元开始接收第一音频信号时, 向第二终端发送音频记录开始命令, 所述音频记录开始命令, 用于指示所述 第二终端开始记录所述第二终端生成的第二音频信号, 以及所述发送单元在 所述接收单元结束接收所述第一音频信号时, 向所述第二终端发送音频记录 结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所述第 二音频信号, 并由所述接收单元接收所述第二终端发送的已记录的所述第二 音频信号,使得处理单元能够利用所述第二音频信号对所述第一音频信号进 行降噪, 能够避免现有技术中由于对噪声进行抑制的同时也对语音信号进行 了一定的抑制的问题, 从而提高了降噪之后的声音质量和降噪的可靠性。  In this embodiment, the terminal sends an audio recording start command to the second terminal by the sending unit when the receiving unit starts to receive the first audio signal, where the audio recording start command is used to instruct the second terminal to start recording the first a second audio signal generated by the second terminal, and the transmitting unit, when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used Instructing the second terminal to end recording the second audio signal, and receiving, by the receiving unit, the recorded second audio signal sent by the second terminal, so that the processing unit can utilize the second audio signal Denoising the first audio signal can avoid the problem of suppressing noise and suppressing the speech signal in the prior art, thereby improving sound quality and noise reduction after noise reduction. Sex.
图 6为本申请另一实施例提供的终端的结构示意图, 如图 6所示, 本 实施例的终端可以包括接收单元 61和发送单元 62。 其中, 接收单元 61 , 用于接收第一音频信号, 以及将所述第一音频信号传输给发送单元 62; 所 述发送单元 62, 用于所述接收单元 61开始接收第一音频信号时, 向所述第 二终端发送音频记录开始命令, 所述音频记录开始命令, 用于指示所述第二 终端开始记录所述第二终端生成的第二音频信号; 以及所述接收单元 61结 束接收所述第一音频信号时, 向所述第二终端发送音频记录结束命令, 所述 音频记录结束命令, 用于指示所述第二终端结束记录所述第二音频信号; 所 述发送单元 62 , 还用于向服务器发送所述第一音频信号, 以使得所述服务 器利用所述第二音频信号对所述第一音频信号进行降噪。  FIG. 6 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure. As shown in FIG. 6, the terminal in this embodiment may include a receiving unit 61 and a sending unit 62. The receiving unit 61 is configured to receive the first audio signal, and transmit the first audio signal to the sending unit 62. The sending unit 62 is configured to: when the receiving unit 61 starts receiving the first audio signal, The second terminal sends an audio recording start command, where the audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal; and the receiving unit 61 ends receiving the And the first audio signal, the audio recording end command is sent to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal; Transmitting the first audio signal to a server to cause the server to perform noise reduction on the first audio signal using the second audio signal.
其中, 所述第二音频信号为所述第二终端在结束记录所述第二音频信号 之后发送给所述服务器。 The second audio signal is that the second terminal ends recording the second audio signal. Then sent to the server.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 如图 7所示, 本实施例 提供的终端还可以进一步包括同步单元 71, 用于在所述接收单元 61开始接 收第一音频信号之前, 与所述第二终端执行时间同步。  Optionally, in a possible implementation manner of the embodiment, as shown in FIG. 7, the terminal provided in this embodiment may further include a synchronization unit 71, configured to start receiving the first audio signal at the receiving unit 61. Previously, time synchronization was performed with the second terminal.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述第二终端记录所述第二音频信号开始的时间; 所述 音频记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指 示所述第二终端记录所述第二音频信号结束的时间。  Correspondingly, the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述终端包括主麦克和 辅麦克两个麦克, 一般来说, 主麦克设置在终端的正面, 例如, 与用户的发 生器官较近的地方, 辅麦克设置在终端的背面, 例如, 与用户的发生器官较 远的地方。 所述第一音频信号为所述接收单元 61通过主麦克接收的音频信 号, 第三音频信号为所述接收单元 61通过辅麦克接收的音频信号; 所述接 收单元 61还可以进一步通过辅麦克接收第三音频信号, 以及将所述第三音 频信号传输给所述发送单元 62 所述发送单元 62还可以进一步向所述服务 器发送所述第三音频信号, 以使得所述服务器根据所述第三音频信号和所述 第二音频信号, 获得所述第二音频信号的衰减信息, 以及利用所述第二音频 信号和所述第二音频信号的衰减信息, 对所述第一音频信号进行降噪。  Optionally, in a possible implementation manner of the embodiment, the terminal includes two microphones, a primary microphone and a secondary microphone. Generally, the primary microphone is disposed on a front side of the terminal, for example, closer to a user's organ. The place where the auxiliary microphone is placed on the back of the terminal, for example, is far from the user's organ. The first audio signal is an audio signal received by the receiving unit 61 through a primary microphone, and the third audio signal is an audio signal received by the receiving unit 61 through a secondary microphone; the receiving unit 61 may further receive through the auxiliary microphone. a third audio signal, and transmitting the third audio signal to the transmitting unit 62. The sending unit 62 may further send the third audio signal to the server, so that the server is according to the third And obtaining, by the audio signal and the second audio signal, attenuation information of the second audio signal, and performing noise reduction on the first audio signal by using attenuation information of the second audio signal and the second audio signal .
可选地, 在本实施例的一个可能的实现方式中, 所述第三音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。 由于主麦克和辅麦克所处的位置不同, 如果用户的发生 器官与主麦克更靠近, 那么, 与所述第一音频信号中所包括的用于语音控制 的语音数据、用户语音通话的语音数据或用于语音录制的语音数据的信号强 度相比, 所述第三音频信号中所包括的用于语音控制的语音数据、 用户语音 通话的语音数据或用于语音录制的语音数据的信号强度要小一点。  Optionally, in a possible implementation manner of the embodiment, the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
本实施例中, 终端通过发送单元在接收单元开始接收第一音频信号时, 向第二终端发送音频记录开始命令, 所述音频记录开始命令, 用于指示所述 第二终端开始记录所述第二终端生成的第二音频信号, 以及所述发送单元在 所述接收单元结束接收所述第一音频信号时, 向所述第二终端发送音频记录 结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所述第 二音频信号, 并由所述发送单元进而向服务器发送所述第一音频信号, 以使 得所述服务器能够利用所述第二音频信号对所述第一音频信号进行降噪, 所 述第二音频信号为所述第二终端在结束记录所述第二音频信号之后发送给 所述服务器, 能够避免现有技术中由于对噪声进行抑制的同时也对语音信号 进行了一定的抑制的问题, 从而提高了降噪之后的声音质量和降噪的可靠 性。 In this embodiment, the terminal sends an audio recording start command to the second terminal by the sending unit when the receiving unit starts to receive the first audio signal, where the audio recording start command is used to instruct the second terminal to start recording the first a second audio signal generated by the second terminal, and the transmitting unit is And when the receiving unit ends receiving the first audio signal, sending an audio recording end command to the second terminal, where the audio recording end command is used to instruct the second terminal to end recording the second audio signal, And transmitting, by the sending unit, the first audio signal to the server, so that the server can perform noise reduction on the first audio signal by using the second audio signal, where the second audio signal is After the second terminal ends the recording of the second audio signal, the second terminal sends the signal to the server, which can avoid the problem of suppressing the noise and suppressing the voice signal in the prior art, thereby improving the noise reduction. Sound quality and reliability of noise reduction.
图 8为本申请另一实施例提供的终端的结构示意图, 如图 8所示, 本 实施例的终端可以包括接收单元 81、 处理单元 82和发送单元 83。 其中, 接收单元 81 , 用于接收第一终端发送的音频记录开始命令, 所述音频记录 开始命令为所述第一终端开始接收第一音频信号时发送给所述终端, 以及将 所述音频记录开始命令传输给处理单元 82; 所述处理单元 82, 用于根据所 述音频记录开始命令, 开始记录所述终端生成的第二音频信号; 所述接收单 元 81 , 还用于接收所述第一终端发送的音频记录结束命令, 以及将所述音 频记录结束命令传输给所述处理单元 82 , 所述音频记录结束命令为所述第 一终端结束接收所述第一音频信号时发送给所述终端; 所述处理单元 82 , 还用于根据所述音频记录结束命令, 结束记录所述第二音频信号, 以及将所 述第二音频信号传输给发送单元 83; 所述发送单元 83, 用于向所述第一终 端发送所述第二音频信号, 以使得所述第一终端利用所述第二音频信号对所 述第一音频信号进行降噪; 或者向服务器发送所述第二音频信号, 以使得所 述服务器利用所述第二音频信号对接收的所述第一终端发送的所述第一音 频信号进行降噪。  FIG. 8 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure. As shown in FIG. 8, the terminal in this embodiment may include a receiving unit 81, a processing unit 82, and a sending unit 83. The receiving unit 81 is configured to receive an audio recording start command sent by the first terminal, where the audio recording start command is sent to the terminal when the first terminal starts receiving the first audio signal, and the audio recording is performed. The start command is transmitted to the processing unit 82. The processing unit 82 is configured to start recording the second audio signal generated by the terminal according to the audio recording start command. The receiving unit 81 is further configured to receive the first An audio recording end command sent by the terminal, and transmitting the audio recording end command to the processing unit 82, where the audio recording end command is sent to the terminal when the first terminal ends receiving the first audio signal The processing unit 82 is further configured to end recording the second audio signal according to the audio recording end command, and transmitting the second audio signal to the sending unit 83; the sending unit 83, configured to Transmitting, by the first terminal, the second audio signal, so that the first terminal uses the second audio signal to An audio signal noise reduction; or send the second audio signal to the server, so that said second server using the received audio signal to the first terminal transmits a first audio signal noise reduction.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 如图 9所示, 本实施例 提供的终端还可以进一步包括同步单元 91, 用于在所述接收单元 81接收第 一终端发送的音频记录开始命令之前, 与所述第一终端执行时间同步。  Optionally, in a possible implementation manner of this embodiment, as shown in FIG. 9, the terminal provided in this embodiment may further include a synchronization unit 91, configured to receive, by the receiving unit 81, the first terminal, The time synchronization with the first terminal is performed before the audio recording start command.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述终端记录所述第二音频信号开始的时间; 所述音频 记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指示所 述终端记录所述第二音频信号结束的时间。 Correspondingly, the audio recording start command may further include a start time stamp, where the start time stamp is used to indicate that the terminal records the start time of the second audio signal; The recording end command may further include an end time bird ending time stamp for instructing the terminal to record the time at which the second audio signal ends.
可选地, 在本实施例的一个可能的实现方式中, 所述处理单元 82还可 以进一步确定所述终端是否对所述第一终端造成干4 当所述终端对所述第 一终端造成干扰时, 判断执行根据所述音频记录开始命令开始记录所述第二 音频信号的操作; 当所述终端不对所述第一终端造成干扰时, 判断不执行根 据所述音频记录开始命令开始记录所述第二音频信号的操作, 以及生成响应 消息, 将所述响应消息传输给所述发送单元 83 , 所述响应消息指示不需要 利用所述第二音频信号对所述第一音频信号进行降噪。 相应地, 所述发送单 元 83则可以向所述第一终端或所述服务器发送所述响应消息。  Optionally, in a possible implementation manner of the embodiment, the processing unit 82 may further determine whether the terminal causes the first terminal to be dry 4 when the terminal interferes with the first terminal. Determining an operation of starting to record the second audio signal according to the audio recording start command; when the terminal does not cause interference to the first terminal, determining not to perform the recording according to the audio recording start command The operation of the second audio signal, and generating a response message, transmitting the response message to the transmitting unit 83, the response message indicating that the first audio signal need not be denoised by the second audio signal. Correspondingly, the sending unit 83 can send the response message to the first terminal or the server.
可选地, 在本实施例的一个可能的实现方式中, 所述处理单元 82还可 以进一步根据所述终端与所述第一终端之间的距离, 获得所述第二音频信号 的衰减信息, 以及将所述第二音频信号的衰减信息传输给所述发送单元 83; 相应地, 所述发送单元 83则可以向所述第一终端发送所述第二音频信 号的衰减信息, 以使得所述第一终端利用所述第二音频信号和所述第二音频 信号的衰减信息对所述第一音频信号进行降噪 或者向所述服务器发送所述 第二音频信号的衰减信息, 以使得所述服务器利用所述第二音频信号和所述 第二音频信号的衰减信息对接收的所述第一终端发送的所述第一音频信号 进行降噪。  Optionally, in a possible implementation manner of the embodiment, the processing unit 82 may further obtain, according to a distance between the terminal and the first terminal, attenuation information of the second audio signal, where And transmitting the attenuation information of the second audio signal to the sending unit 83; correspondingly, the sending unit 83 may send the attenuation information of the second audio signal to the first terminal, so that the The first terminal denoises the first audio signal by using the attenuation information of the second audio signal and the second audio signal or transmits attenuation information of the second audio signal to the server, so that the The server uses the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
本实施例中, 终端通过接收单元接收第一终端发送的音频记录开始命 令, 并由处理单元根据所述音频记录开始命令, 开始记录所述终端生成的第 二音频信号, 所述音频记录开始命令为所述第一终端开始接收第一音频信号 时发送给所述终端, 以及所述接收单元接收所述第一终端发送的音频记录结 束命令, 并由所述处理单元根据所述音频记录结束命令, 结束记录所述第二 音频信号, 所述音频记录结束命令为所述第一终端结束接收所述第一音频信 号时发送给所述终端, 进而由发送单元向所述第一终端或服务器发送所述第 二音频信号, 以使得所述第一终端能够利用所述第二音频信号对所述第一音 频信号进行降噪, 或者所述服务器能够利用所述第二音频信号对接收的所述 第一终端发送的所述第一音频信号进行降噪, 能够避免现有技术中由于对噪 声进行抑制的同时也对语音信号进行了一定的抑制的问题从而提高了降噪 之后的声音质量和降噪的可靠性。 图 10为本申请另一实施例提供的终端的结构示意图, 如图 10所示, 本实施例的终端可以包括麦克 1001、 发送器 1002、 接收器 1003和一个或 多个处理器 1004。 In this embodiment, the terminal receives the audio recording start command sent by the first terminal by using the receiving unit, and the processing unit starts to record the second audio signal generated by the terminal according to the audio recording start command, where the audio recording start command is started. Sending to the terminal when the first terminal starts receiving the first audio signal, and the receiving unit receives an audio recording end command sent by the first terminal, and the processing unit ends the command according to the audio recording End recording the second audio signal, where the audio recording end command is sent to the terminal when the first terminal ends receiving the first audio signal, and then sent by the sending unit to the first terminal or server The second audio signal to enable the first terminal to perform noise reduction on the first audio signal using the second audio signal, or the server is capable of utilizing the second audio signal to receive the The first audio signal sent by the first terminal performs noise reduction, which can avoid the noise in the prior art. While suppressing the voice signal is also some question suppression resulting in improved reliability and sound quality noise reduction after noise reduction. FIG. 10 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure. As shown in FIG. 10, the terminal in this embodiment may include a microphone 1001, a transmitter 1002, a receiver 1003, and one or more processors 1004.
所述麦克 1001 , 用于接收第一音频信号, 并发送给所述一个或多个处 理器 1004;  The microphone 1001 is configured to receive a first audio signal and send the signal to the one or more processors 1004;
所述一个或多个处理器 1004 , 用于在所述麦克 1001开始接收所述第 一音频信号时, 生成音频记录开始命令, 并交由所述发送器 1002发送; 在 所述麦克 1001结束接收所述第一音频信号时, 生成音频记录结束命令, 并 交由所述发送器 1002发送; 并接收接收器 1003接收的第二音频信号, 并 利用所述第二音频信号对所述第一音频信号进行降噪;  The one or more processors 1004 are configured to generate an audio recording start command when the microphone 1001 starts receiving the first audio signal, and send the audio recording start command to the transmitter 1002 to receive the microphone 1001; And generating an audio recording end command, and transmitting to the transmitter 1002; receiving the second audio signal received by the receiver 1003, and using the second audio signal to the first audio The signal is noise-reduced;
其中, 所述音频记录开始命令, 用于指示第二终端开始记录所述第二终 端生成的第二音频信号; 所述音频记录结束命令, 用于指示所述第二终端结 束记录所述第二音频信号;  The audio recording start command is configured to instruct the second terminal to start recording the second audio signal generated by the second terminal, and the audio recording end command is used to instruct the second terminal to end recording the second audio signal;
所述发送器 1002 , 用于按照所述一个或多个处理器的指令, 向所述第 二终端发送所述音频记录开始命令和所述音频记录结束命令;  The transmitter 1002 is configured to send, according to an instruction of the one or more processors, the audio recording start command and the audio recording end command to the second terminal;
所述接收器 1003 , 用于接收所述第二终端发送的已记录的所述第二音 频信号, 并发送给所述处理器 1004。  The receiver 1003 is configured to receive the recorded second audio signal sent by the second terminal, and send the signal to the processor 1004.
上述发送器和接收器具体可以为射频单元或 WiFi模块。  The above transmitter and receiver may specifically be a radio frequency unit or a WiFi module.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 所述处理器 1004可以 进一步在所述麦克 1001开始接收所述第一音频信号之前, 与所述第二终端 执行时间同步。  Optionally, in a possible implementation manner of the embodiment, the processor 1004 may further perform time synchronization with the second terminal before the microphone 1001 starts receiving the first audio signal.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述第二终端记录所述第二音频信号开始的时间; 所述 音频记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指 示所述第二终端记录所述第二音频信号结束的时间。  Correspondingly, the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp may also be further included to indicate the time at which the second terminal records the end of the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述接收器 1003具体 可以接收所述第二终端在判断所述第二音频信号对第一音频信号造成干扰 时, 发送的已记录的所述第二音频信号。 可选地, 在本实施例的一个可能的实现方式中, 所述麦克包括主麦克和 辅麦克两个麦克, 一般来说, 主麦克设置在终端的正面, 例如, 与用户的发 生器官较近的地方, 辅麦克设置在终端的背面, 例如, 与用户的发生器官较 远的地方。 所述第一音频信号为所述主麦克接收的音频信号, 第三音频信号 为所述辅麦克接收的音频信号。 也就是说, 所述主麦克, 用于接收所述第一 音频信号, 并发送给所述一个或多个处理器 1004; 所述辅麦克, 用于接收 所述第三音频信号, 并发送给所述一个或多个处理器 1004。 所述处理器 1004还可以进一步根据所述第三音频信号和所述第二音频信号, 获得所述 第二音频信号的衰减信息。 具体地, 所述处理器 1004具体可以利用所述第 二音频信号和所述第二音频信号的衰减信息,对所述第一音频信号进行降噪 (即降噪相关运算), 以减少所述第一音频信号中所包含的所述噪声, 从而 能够实现降噪。 Optionally, in a possible implementation manner of the embodiment, the receiver 1003 may receive, by the second terminal, a recorded record that is sent when the second terminal determines that the second audio signal causes interference to the first audio signal. The second audio signal. Optionally, in a possible implementation manner of the embodiment, the microphone includes two microphones, a primary microphone and a secondary microphone. Generally, the primary microphone is disposed on a front side of the terminal, for example, closer to a user's organ. The place where the auxiliary microphone is placed on the back of the terminal, for example, is far from the user's organ. The first audio signal is an audio signal received by the primary microphone, and the third audio signal is an audio signal received by the secondary microphone. That is, the primary microphone is configured to receive the first audio signal and send the signal to the one or more processors 1004; the secondary microphone is configured to receive the third audio signal, and send the The one or more processors 1004. The processor 1004 may further obtain attenuation information of the second audio signal according to the third audio signal and the second audio signal. Specifically, the processor 1004 may specifically perform noise reduction (ie, noise reduction correlation operation) on the first audio signal by using attenuation information of the second audio signal and the second audio signal to reduce the The noise contained in the first audio signal enables noise reduction.
可选地, 在本实施例的一个可能的实现方式中, 所述第三音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。 由于主麦克和辅麦克所处的位置不同, 如果用户的发生 器官与主麦克更靠近, 那么, 与所述第一音频信号中所包括的用于语音控制 的语音数据、用户语音通话的语音数据或用于语音录制的语音数据的信号强 度相比, 所述第三音频信号中所包括的用于语音控制的语音数据、 用户语音 通话的语音数据或用于语音录制的语音数据的信号强度要小一点。  Optionally, in a possible implementation manner of the embodiment, the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
可选地, 在本实施例的一个可能的实现方式中, 本实施例提供的终端还 可以进一步包括存储器, 用于存储其他单元或模块接收或处理的信息。  Optionally, in a possible implementation manner of this embodiment, the terminal provided in this embodiment may further include a memory for storing information received or processed by other units or modules.
本实施例中, 终端通过处理器在麦克开始接收第一音频信号时, 生成音 频记录开始命令, 并交由发送器发送, 以及在在所述麦克结束接收所述第一 音频信号时, 生成音频记录结束命令, 并交由所述发送器发送, 所述音频记 录开始命令, 用于指示所述第二终端开始记录所述第二终端生成的第二音频 信号, 所述音频记录结束命令, 用于指示所述第二终端结束记录所述第二音 频信号, 并由所述接收器接收所述第二终端发送的已记录的所述第二音频信 号, 使得处理器能够利用所述第二音频信号对所述第一音频信号进行降噪, 能够避免现有技术中由于对噪声进行抑制的同时也对语音信号进行了一定 的抑制的问题, 从而提高了降噪之后的声音质量和降噪的可靠性。  In this embodiment, the terminal generates an audio recording start command by the processor when the microphone starts receiving the first audio signal, and sends the audio recording start command to the transmitter, and generates an audio when the microphone ends receiving the first audio signal. Recording an end command, and sending it to the sender, the audio recording start command for instructing the second terminal to start recording the second audio signal generated by the second terminal, the audio recording end command, Instructing the second terminal to end recording the second audio signal, and receiving, by the receiver, the recorded second audio signal sent by the second terminal, so that the processor can utilize the second audio The signal is denoised by the signal, which can avoid the problem of suppressing the noise and suppressing the speech signal in the prior art, thereby improving the sound quality and noise reduction after noise reduction. reliability.
图 11为本申请另一实施例提供的终端的结构示意图, 如图 11所示, 本实施例的终端可以包括麦克 1101、 发送器 1102和一个或多个处理器 1103。 FIG. 11 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure, as shown in FIG. The terminal of this embodiment may include a microphone 1101, a transmitter 1102, and one or more processors 1103.
所述麦克 1101 , 用于接收第一音频信号, 并发送给所述一个或多个处 理器 1103;  The microphone 1101 is configured to receive a first audio signal and send the signal to the one or more processors 1103;
所述一个或多个处理器 1103> 用于在所述麦克 1101开始接收所述第一 音频信号时, 生成音频记录开始命令, 并交由所述发送器 1 102发送; 在所 述麦克 1101结束接收所述第一音频信号时, 生成音频记录结束命令, 并交 由所述发送器 1 102发送; 并将所述第一音频信号交由所述发送器 1 102发 送;  The one or more processors 1103> are configured to generate an audio recording start command when the microphone 1101 starts receiving the first audio signal, and send it to the transmitter 1 102 for transmission; ending at the microphone 1101 Receiving the first audio signal, generating an audio recording end command, and transmitting it to the transmitter 1 102; and transmitting the first audio signal to the transmitter 1 102;
其中, 所述音频记录开始命令, 用于指示第二终端开始记录所述第二终 端生成的第二音频信号; 所述音频记录结束命令, 用于指示所述第二终端结 束记录所述第二音频信号;  The audio recording start command is configured to instruct the second terminal to start recording the second audio signal generated by the second terminal, and the audio recording end command is used to instruct the second terminal to end recording the second audio signal;
所述发送器 1102 , 用于按照所述一个或多个处理器的指令, 向所述第 二终端发送所述音频记录开始命令和所述音频记录结束命令, 以及向服务器 发送所述第一音频信号, 以使得所述服务器利用所述第二音频信号对所述第 一音频信号进行降噪。  The transmitter 1102 is configured to send the audio recording start command and the audio recording end command to the second terminal according to an instruction of the one or more processors, and send the first audio to a server And causing the server to perform noise reduction on the first audio signal by using the second audio signal.
上述发送器具体可以为射频单元或 WiFi模块。  The above transmitter may specifically be a radio frequency unit or a WiFi module.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
其中, 所述第二音频信号为所述第二终端在结束记录所述第二音频信号 之后发送给所述服务器。  The second audio signal is sent to the server by the second terminal after the end of recording the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 所述处理器 1 103可以 进一步在所述麦克 1101开始接收所述第一音频信号之前, 与所述第二终端 执行时间同步。  Optionally, in a possible implementation manner of the embodiment, the processor 1103 may further perform time synchronization with the second terminal before the microphone 1101 starts receiving the first audio signal.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述第二终端记录所述第二音频信号开始的时间; 所述 音频记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指 示所述第二终端记录所述第二音频信号结束的时间。 Correspondingly, the audio recording start command may further include a start timestamp, where the start timestamp is used to indicate a time when the second terminal records the second audio signal; the audio record end command The end time stamp can also be further included in the end time The second terminal is recorded to record the time when the second audio signal ends.
可选地, 在本实施例的一个可能的实现方式中, 所述麦克包括主麦克和 辅麦克两个麦克, 一般来说, 主麦克设置在终端的正面, 例如, 与用户的发 生器官较近的地方, 辅麦克设置在终端的背面, 例如, 与用户的发生器官较 远的地方。 所述第一音频信号为所述主麦克接收的音频信号, 第三音频信号 为所述辅麦克接收的音频信号。 也就是说, 所述主麦克, 用于接收所述第一 音频信号, 并发送给所述一个或多个处理器 1103; 所述辅麦克, 用于接收 所述第三音频信号, 并发送给所述一个或多个处理器 iioa 所述处理器 1103 还可以进一步将所述第三音频信号交由所述发送器 1 102发送。 相应地, 所 述发送器 1 102还可以进一步按照所述一个或多个处理器的指令, 向所述服 务器发送所述第三音频信号, 以使得所述服务器根据所述第三音频信号和所 述第二音频信号, 获得所述第二音频信号的衰减信息。 然后, 所述服务器具 体可以利用所述第二音频信号和所述第二音频信号的衰减信息,对所述第一 音频信号进行降噪(即降噪相关运算), 以减少所述第一音频信号中所包含 的所述噪声, 从而能够实现降噪。  Optionally, in a possible implementation manner of the embodiment, the microphone includes two microphones, a primary microphone and a secondary microphone. Generally, the primary microphone is disposed on a front side of the terminal, for example, closer to a user's organ. The place where the auxiliary microphone is placed on the back of the terminal, for example, is far from the user's organ. The first audio signal is an audio signal received by the primary microphone, and the third audio signal is an audio signal received by the secondary microphone. That is, the primary microphone is configured to receive the first audio signal and send the signal to the one or more processors 1103; the secondary microphone is configured to receive the third audio signal, and send the The one or more processors iioa may further transmit the third audio signal to the transmitter 1 102 for transmission. Correspondingly, the transmitter 1102 may further send the third audio signal to the server according to an instruction of the one or more processors, so that the server according to the third audio signal and the Deriving the second audio signal to obtain attenuation information of the second audio signal. Then, the server may specifically perform noise reduction (ie, noise reduction correlation operation) on the first audio signal by using attenuation information of the second audio signal and the second audio signal to reduce the first audio. The noise contained in the signal enables noise reduction.
可选地, 在本实施例的一个可能的实现方式中, 所述第三音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。 由于主麦克和辅麦克所处的位置不同, 如果用户的发生 器官与主麦克更靠近, 那么, 与所述第一音频信号中所包括的用于语音控制 的语音数据、用户语音通话的语音数据或用于语音录制的语音数据的信号强 度相比, 所述第三音频信号中所包括的用于语音控制的语音数据、 用户语音 通话的语音数据或用于语音录制的语音数据的信号强度要小一点。  Optionally, in a possible implementation manner of the embodiment, the third audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording. Since the location of the primary mic and the secondary mic are different, if the organ of the user is closer to the primary mic, the voice data for voice control and the voice data of the user's voice call included in the first audio signal are included. Or the signal strength of the voice data for voice recording, the voice strength of the voice data for voice control, the voice data of the user voice call, or the voice data for voice recording included in the third audio signal. smaller.
可选地, 在本实施例的一个可能的实现方式中, 本实施例提供的终端还 可以进一步包括存储器, 用于存储其他单元或模块接收或处理的信息。  Optionally, in a possible implementation manner of this embodiment, the terminal provided in this embodiment may further include a memory for storing information received or processed by other units or modules.
本实施例中, 终端通过处理器在麦克开始接收第一音频信号时, 生成音 频记录开始命令, 并交由发送器发送, 以及在在所述麦克结束接收所述第一 音频信号时, 生成音频记录结束命令, 并交由所述发送器发送, 所述音频记 录开始命令, 用于指示所述第二终端开始记录所述第二终端生成的第二音频 信号, 所述音频记录结束命令, 用于指示所述第二终端结束记录所述第二音 频信号, 并由所述发送器向服务器发送所述第一音频信号, 以使得所述服务 器利用所述第二音频信号对所述第一音频信号进行降噪, 能够避免现有技术 中由于对噪声进行抑制的同时也对语音信号进行了一定的抑制的问题从而 提高了降噪之后的声音质量和降噪的可靠性。 In this embodiment, the terminal generates an audio recording start command by the processor when the microphone starts receiving the first audio signal, and sends the audio recording start command to the transmitter, and generates an audio when the microphone ends receiving the first audio signal. Recording an end command, and sending it to the sender, the audio recording start command for instructing the second terminal to start recording the second audio signal generated by the second terminal, the audio recording end command, Instructing the second terminal to end recording the second audio signal, and transmitting, by the transmitter, the first audio signal to a server, so that the server utilizes the second audio signal to the first audio Signal noise reduction, avoiding existing technology Due to the suppression of noise, the speech signal is also suppressed to some extent, thereby improving the sound quality and the reliability of noise reduction after noise reduction.
图 12为本申请另一实施例提供的终端的结构示意图, 如图 12所示, 本实施例的终端可以包括接收器 1201、 一个或多个处理器 1202和发送器 1203。  FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure. As shown in FIG. 12, the terminal in this embodiment may include a receiver 1201, one or more processors 1202, and a transmitter 1203.
接收器 1201 , 用于接收第一终端发送的音频记录开始命令, 所述音频 记录开始命令为所述第一终端开始接收第一音频信号时发送给所述终端, 以 及将所述音频记录开始命令传输给处理器 1202;  The receiver 1201 is configured to receive an audio recording start command sent by the first terminal, where the audio recording start command is sent to the terminal when the first terminal starts receiving the first audio signal, and the audio recording start command is Transfer to the processor 1202;
所述处理器 1202 , 用于根据所述音频记录开始命令, 开始记录所述终 端生成的第二音频信号;  The processor 1202 is configured to start recording a second audio signal generated by the terminal according to the audio recording start command;
所述接收器 1201 , 还用于接收所述第一终端发送的音频记录结束命 令, 以及将所述音频记录结束命令传输给所述处理器 1202 , 所述音频记录 结束命令为所述第一终端结束接收所述第一音频信号时发送给所述终端; 所述处理器 1202 , 还用于根据所述音频记录结束命令, 结束记录所述 第二音频信号, 以及将已记录的所述第二音频信号交由发送器 1203发送; 所述发送器 1203 , 用于向所述第一终端发送所述第二音频信号, 以使 得所述第一终端利用所述第二音频信号对所述第一音频信号进行降噪 或者 向服务器发送所述第二音频信号, 以使得所述服务器利用所述第二音频信号 对接收的所述第一终端发送的所述第一音频信号进行降噪。  The receiver 1201 is further configured to receive an audio recording end command sent by the first terminal, and transmit the audio recording end command to the processor 1202, where the audio recording end command is the first terminal Transmitting to the terminal when receiving the first audio signal; the processor 1202 is further configured to end recording the second audio signal according to the audio recording end command, and to record the second The audio signal is sent by the transmitter 1203, and the transmitter 1203 is configured to send the second audio signal to the first terminal, so that the first terminal uses the second audio signal to the first The audio signal is noise-reduced or the second audio signal is sent to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
上述接收器和发送器具体可以为射频单元或 WiFi模块。  The above receiver and transmitter may specifically be a radio frequency unit or a WiFi module.
可选地, 在本实施例的一个可能的实现方式中, 所述第一音频信号可以 包括但不限于用于语音控制的语音数据、用户语音通话的语音数据或用于语 音录制的语音数据。  Optionally, in a possible implementation manner of the embodiment, the first audio signal may include, but is not limited to, voice data for voice control, voice data of a user voice call, or voice data for voice recording.
可选地, 在本实施例的一个可能的实现方式中, 所述处理器 1202还可 以进一步在所述接收器 1201接收第一终端发送的音频记录开始命令之前, 与所述第一终端执行时间同步。  Optionally, in a possible implementation manner of the embodiment, the processor 1202 may further perform time with the first terminal before the receiver 1201 receives the audio recording start command sent by the first terminal. Synchronize.
相应地, 所述音频记录开始命令中还可以进一步包含起始时间戳, 所述 起始时间戳用于指示所述终端记录所述第二音频信号开始的时间; 所述音频 记录结束命令中还可以进一步包含结束时间禽 所述结束时间戳用于指示所 述终端记录所述第二音频信号结束的时间。  Correspondingly, the audio recording start command may further include a start time stamp, where the start time stamp is used to indicate a time when the terminal records the second audio signal; and the audio record end command is further The end time of the bird may be further included to indicate that the terminal records the end of the second audio signal.
可选地, 在本实施例的一个可能的实现方式中, 所述处理器 1202还可 以进一步确定所述终端是否对所述第一终端造成干4 当所述终端对所述第 一终端造成干扰时, 判断执行根据所述音频记录开始命令开始记录所述第二 音频信号的操作; 当所述终端不对所述第一终端造成干扰时, 判断不执行根 据所述音频记录开始命令开始记录所述第二音频信号的操作, 以及生成响应 消息, 将所述响应消息交由所述发送器 1203发送, 所述响应消息指示不需 要利用所述第二音频信号对所述第一音频信号进行降噪。 相应地, 所述发送 器 1203则可以按照所述一个或多个处理器的指令, 向所述第一终端或所述 服务器发送所述响应消息。 Optionally, in a possible implementation manner of the embodiment, the processor 1202 is further Determining whether the terminal causes the first terminal to cause interference. When the terminal causes interference to the first terminal, determining to perform an operation of starting to record the second audio signal according to the audio recording start command; When the terminal does not cause interference to the first terminal, determining to not perform an operation of starting to record the second audio signal according to the audio recording start command, and generating a response message, handing the response message to the sending The transmitter 1203 transmits, the response message indicating that the first audio signal does not need to be noise-reduced by the second audio signal. Correspondingly, the transmitter 1203 may send the response message to the first terminal or the server according to an instruction of the one or more processors.
可选地, 在本实施例的一个可能的实现方式中, 所述处理器 1202还可 以进一步根据所述终端与所述第一终端之间的距离, 获得所述第二音频信号 的衰减信息, 以及将所述第二音频信号的衰减信息交由所述发送器 1203发 送; 相应地, 所述发送器 1203则可以向所述第一终端发送所述第二音频信 号的衰减信息, 以使得所述第一终端利用所述第二音频信号和所述第二音频 信号的衰减信息对所述第一音频信号进行降噪 或者向所述服务器发送所述 第二音频信号的衰减信息, 以使得所述服务器利用所述第二音频信号和所述 第二音频信号的衰减信息对接收的所述第一终端发送的所述第一音频信号 进行降噪。  Optionally, in a possible implementation manner of the embodiment, the processor 1202 may further obtain, according to a distance between the terminal and the first terminal, attenuation information of the second audio signal, where And transmitting the attenuation information of the second audio signal to the transmitter 1203; correspondingly, the transmitter 1203 may send the attenuation information of the second audio signal to the first terminal, so that the Determining, by the first terminal, the first audio signal by using the attenuation information of the second audio signal and the second audio signal, or transmitting attenuation information of the second audio signal to the server, so that The server uses the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
可选地, 在本实施例的一个可能的实现方式中, 本实施例提供的终端还 可以进一步包括存储器, 用于存储其他单元或模块接收或处理的信息。  Optionally, in a possible implementation manner of this embodiment, the terminal provided in this embodiment may further include a memory for storing information received or processed by other units or modules.
本实施例中, 终端通过接收器接收第一终端发送的音频记录开始命令, 并由处理器根据所述音频记录开始命令, 开始记录所述终端生成的第二音频 信号, 所述音频记录开始命令为所述第一终端开始接收第一音频信号时发送 给所述终端, 以及所述接收器接收所述第一终端发送的音频记录结束命令, 并由所述处理器根据所述音频记录结束命令, 结束记录所述第二音频信号, 所述音频记录结束命令为所述第一终端结束接收所述第一音频信号时发送 给所述终端, 进而由发送器向所述第一终端或服务器发送所述第二音频信 号, 以使得所述第一终端能够利用所述第二音频信号对所述第一音频信号进 行降噪, 或者所述服务器能够利用所述第二音频信号对接收的所述第一终端 发送的所述第一音频信号进行降噪, 能够避免现有技术中由于对噪声进行抑 制的同时也对语音信号进行了一定的抑制的问题从而提高了降噪之后的声 音质量和降噪的可靠性。 所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述描 述的系统, 装置和单元的具体工作过程, 可以参考前述方法实施例中的对应 过程, 在此不再赘述。 In this embodiment, the terminal receives the audio recording start command sent by the first terminal by using the receiver, and the processor starts to record the second audio signal generated by the terminal according to the audio recording start command, where the audio recording start command is Transmitting to the terminal when the first terminal starts receiving the first audio signal, and the receiver receives an audio recording end command sent by the first terminal, and the processor ends the command according to the audio recording End recording the second audio signal, the audio recording end command is sent to the terminal when the first terminal ends receiving the first audio signal, and then sent by the transmitter to the first terminal or server The second audio signal to enable the first terminal to perform noise reduction on the first audio signal using the second audio signal, or the server is capable of utilizing the second audio signal to receive the The first audio signal sent by the first terminal performs noise reduction, which can avoid the same suppression of noise in the prior art. Also the voice signal some problems inhibition thereby improving the reliability of voice quality and noise reduction after noise reduction. A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置和方 法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意 性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以 有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个系 统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的 耦合或直接耦合或通信连接可以是通过一些接口, 装置或单元的间接耦合或 通信连接, 可以是电性, 机械或其它的形式。 为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。  In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise. The components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
另外, 在本申请各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一 个单元中。 上述集成的单元既可以釆用硬件的形式实现, 也可以釆用硬件加 软件功能单元的形式实现。  In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
上述以软件功能单元的形式实现的集成的单元, 可以存储在一个计算机 可读取存储介质中。 上述软件功能单元存储在一个存储介质中, 包括若干指 令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等) 或处理器 (processor ) 执行本申请各个实施例所述方法的部分步骤。 而前 述的存储介质包括: U盘、 移动硬盘、 只读存储器 ( Read-Only Memory, 简称 ROM )、 随机存取存储器( Random Access Memory, 简称 RAM )、 磁 碟或者光盘等各种可以存储程序代码的介质。  The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute the method of the various embodiments of the present application. Part of the steps. The foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and the like can store program codes. Medium.
最后应说明的是: 以上实施例仅用以说明本申请的技术方案, 而非对其 限制; 尽管参照前述实施例对本申请进行了详细的说明, 本领域的普通技术 人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或 者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技 术方案的本质脱离本申请各实施例技术方案的范围。  Finally, it should be noted that the above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the present application is described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present application.

Claims

权 利 要求 Rights request
1、 一种降噪方法, 其特征在于, 包括: 1. A noise reduction method, characterized by including:
第一终端开始接收第一音频信号时, 向第二终端发送音频记录开始命 令, 所述音频记录开始命令, 用于指示所述第二终端开始记录所述第二终端 生成的第二音频信号; When the first terminal starts receiving the first audio signal, it sends an audio recording start command to the second terminal. The audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal;
所述第一终端结束接收所述第一音频信号时, 向所述第二终端发送音频 记录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所 述第二音频信号; When the first terminal finishes receiving the first audio signal, it sends an audio recording end command to the second terminal. The audio recording end command is used to instruct the second terminal to end recording the second audio signal. ;
所述第一终端接收所述第二终端发送的已记录的所述第二音频信号, 利 用所述第二音频信号对所述第一音频信号进行降噪。 The first terminal receives the recorded second audio signal sent by the second terminal, and uses the second audio signal to perform noise reduction on the first audio signal.
2、 根据权利要求 1所述的方法, 其特征在于, 所述第一终端开始接收 第一音频信号之前, 还包括: 所述第一终端与所述第二终端执行时间同步; 所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间; 2. The method according to claim 1, characterized in that, before the first terminal starts receiving the first audio signal, it further includes: performing time synchronization between the first terminal and the second terminal; recording the audio The start command includes a start time, and the start timestamp is used to indicate the time when the second terminal starts recording the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。 The audio recording end command includes an end time, and the end timestamp is used to indicate the time when the second terminal ends recording the second audio signal.
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述第一终端接收 所述第二终端发送的已记录的所述第二音频信号, 包括: 3. The method according to claim 1 or 2, wherein the first terminal receives the recorded second audio signal sent by the second terminal, including:
所述第一终端,接收所述第二终端在判断所述第二音频信号对第一音频 信号造成干扰时, 发送的已记录的所述第二音频信号。 The first terminal receives the recorded second audio signal sent by the second terminal when it is determined that the second audio signal causes interference to the first audio signal.
4、 根据权利要求 1 ~3任一权利要求所述的方法, 其特征在于, 所述第 一音频信号为所述第一终端通过主麦克接收的音频信号; 第三音频信号为所 述第一终端通过辅麦克接收的音频信号; 所述第一终端利用所述第二音频信 号对所述第一音频信号进行降噪之前, 还包括: 4. The method according to any one of claims 1 to 3, characterized in that: the first audio signal is an audio signal received by the first terminal through the main microphone; and the third audio signal is the first audio signal. The audio signal received by the terminal through the auxiliary microphone; before the first terminal uses the second audio signal to perform noise reduction on the first audio signal, it also includes:
所述第一终端通过辅麦克接收所述第三音频信号; The first terminal receives the third audio signal through the auxiliary microphone;
所述第一终端根据所述第三音频信号和所述第二音频信号, 获得所述第 二音频信号的衰减信息; The first terminal obtains the attenuation information of the second audio signal according to the third audio signal and the second audio signal;
所述第一终端利用所述第二音频信号对所述第一音频信号进行降噪, 包 括: The first terminal uses the second audio signal to perform noise reduction on the first audio signal, including:
所述第一终端利用所述第二音频信号和所述第二音频信号的衰减信 息, 对所述第一音频信号进行降噪。 The first terminal uses the second audio signal and the attenuation signal of the second audio signal information, and perform noise reduction on the first audio signal.
5、 一种降噪方法, 其特征在于, 包括: 5. A noise reduction method, characterized by including:
第一终端开始接收第一音频信号时, 向第二终端发送音频记录开始命 令, 所述音频记录开始命令, 用于指示所述第二终端开始记录所述第二终端 生成的第二音频信号; When the first terminal starts receiving the first audio signal, it sends an audio recording start command to the second terminal. The audio recording start command is used to instruct the second terminal to start recording the second audio signal generated by the second terminal;
所述第一终端结束接收所述第一音频信号时, 向所述第二终端发送音频 记录结束命令, 所述音频记录结束命令, 用于指示所述第二终端结束记录所 述第二音频信号; When the first terminal finishes receiving the first audio signal, it sends an audio recording end command to the second terminal. The audio recording end command is used to instruct the second terminal to end recording the second audio signal. ;
所述第一终端向服务器发送所述第一音频信号, 以使得所述服务器利用 所述第二音频信号对所述第一音频信号进行降噪。 The first terminal sends the first audio signal to the server, so that the server uses the second audio signal to perform noise reduction on the first audio signal.
6、 根据权利要求 5所述的方法, 其特征在于, 所述第一终端开始接收 第一音频信号之前, 还包括: 6. The method according to claim 5, characterized in that, before the first terminal starts receiving the first audio signal, it further includes:
所述第一终端与所述第二终端执行时间同步; The first terminal and the second terminal execute time synchronization;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间; The audio recording start command includes a starting time, and the starting timestamp is used to indicate the time when the second terminal starts recording the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。 The audio recording end command includes an end time, and the end timestamp is used to indicate the time when the second terminal ends recording the second audio signal.
7、 根据权利要求 5或 6所述的方法, 其特征在于, 所述第一音频信号 为所述第一终端通过主麦克接收的音频信号; 第三音频信号为所述第一终端 通过辅麦克接收的音频信号; 所述方法还包括: 7. The method according to claim 5 or 6, characterized in that: the first audio signal is an audio signal received by the first terminal through a main microphone; and the third audio signal is an audio signal received by the first terminal through an auxiliary microphone. the received audio signal; the method further includes:
所述第一终端通过辅麦克接收所述第三音频信号, 将所述第三音频信号 发送给所述服务器, 以使得所述服务器根据所述第三音频信号和所述第二音 频信号, 获得所述第二音频信号的衰减信息, 以及利用所述第二音频信号和 所述第二音频信号的衰减信息, 对所述第一音频信号进行降噪。 The first terminal receives the third audio signal through the auxiliary microphone and sends the third audio signal to the server, so that the server obtains the attenuation information of the second audio signal, and using the second audio signal and the attenuation information of the second audio signal to perform noise reduction on the first audio signal.
8、 一种降噪方法, 其特征在于, 包括: 8. A noise reduction method, characterized by including:
第二终端接收第一终端发送的音频记录开始命令, 所述音频记录开始命 令为所述第一终端开始接收第一音频信号时发送给所述第二终端; The second terminal receives the audio recording start command sent by the first terminal, and the audio recording start command is sent to the second terminal when the first terminal starts receiving the first audio signal;
所述第二终端根据所述音频记录开始命令, 开始记录所述第二终端生成 的第二音频信号; The second terminal starts recording the second audio signal generated by the second terminal according to the audio recording start command;
所述第二终端接收所述第一终端发送的音频记录结束命令, 所述音频记 录结束命令为所述第一终端结束接收所述第一音频信号时发送给所述第二 终端; The second terminal receives an audio recording end command sent by the first terminal, and the audio recording end command is sent to the second terminal when the first terminal ends receiving the first audio signal. terminal;
所述第二终端根据所述音频记录结束命令, 结束记录所述第二音频信 号; The second terminal ends recording the second audio signal according to the audio recording end command;
所述第二终端向所述第一终端发送所述第二音频信号, 以使得所述第一 终端利用所述第二音频信号对所述第一音频信号进行降噪; 或者 The second terminal sends the second audio signal to the first terminal, so that the first terminal uses the second audio signal to perform noise reduction on the first audio signal; or
所述第二终端向服务器发送所述第二音频信号, 以使得所述服务器利用 所述第二音频信号对接收的所述第一终端发送的所述第一音频信号进行降 噪。 The second terminal sends the second audio signal to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
9、 根据权利要求 8所述的方法, 其特征在于, 所述第二终端接收第一 终端发送的音频记录开始命令之前, 还包括: 所述第二终端与所述第一终端 执行时间同步; 9. The method according to claim 8, wherein before the second terminal receives the audio recording start command sent by the first terminal, it further includes: performing time synchronization between the second terminal and the first terminal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间; The audio recording start command includes a starting time, and the starting timestamp is used to indicate the time when the second terminal starts recording the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。 The audio recording end command includes an end time, and the end timestamp is used to indicate the time when the second terminal ends recording the second audio signal.
1 0、 根据权利要求 8或 9所述的方法, 其特征在于, 所述第二终端根 据所述音频记录开始命令开始记录所述第二音频信号之前, 还包括: 10. The method according to claim 8 or 9, characterized in that, before the second terminal starts recording the second audio signal according to the audio recording start command, it further includes:
所述第二终端确定所述第二终端是否对所述第一终端造成干扰; 当所述第二终端对所述第一终端造成干扰时, 所述第二终端判断执行根 据所述音频记录开始命令开始记录所述第二音频信号的操作; The second terminal determines whether the second terminal causes interference to the first terminal; when the second terminal causes interference to the first terminal, the second terminal determines whether to start according to the audio recording Command to start the operation of recording the second audio signal;
当所述第二终端不对所述第一终端造成干扰时, 所述第二终端判断不执 行根据所述音频记录开始命令开始记录所述第二音频信号的操作, 以及向所 述第一终端或所述服务器发送响应消息, 所述响应消息用于指示不需要利用 所述第二音频信号对所述第一音频信号进行降噪。 When the second terminal does not cause interference to the first terminal, the second terminal determines not to perform the operation of starting to record the second audio signal according to the audio recording start command, and sends a signal to the first terminal or The server sends a response message, where the response message is used to indicate that it is not necessary to use the second audio signal to perform noise reduction on the first audio signal.
1 1、 根据权利要求 8~1 0任一权利要求所述的方法, 其特征在于, 所述 方法还包括: 11. The method according to any one of claims 8 to 10, characterized in that the method further includes:
所述第二终端根据所述第二终端与所述第一终端之间的距离, 获得所述 第二音频信号的衰减信息; The second terminal obtains the attenuation information of the second audio signal based on the distance between the second terminal and the first terminal;
所述第二终端向所述第一终端发送所述第二音频信号的衰减信息, 以使 得所述第一终端利用所述第二音频信号和所述第二音频信号的衰减信息对 所述第一音频信号进行降噪; 或者 所述第二终端向所述服务器发送所述第二音频信号的衰减信息, 以使得 所述服务器利用所述第二音频信号和所述第二音频信号的衰减信息对接收 的所述第一终端发送的所述第一音频信号进行降噪。 The second terminal sends the attenuation information of the second audio signal to the first terminal, so that the first terminal uses the second audio signal and the attenuation information of the second audio signal to adjust the attenuation information of the second audio signal. an audio signal for noise reduction; or The second terminal sends the attenuation information of the second audio signal to the server, so that the server uses the second audio signal and the attenuation information of the second audio signal to detect the attenuation information of the second audio signal received by the first terminal. The first audio signal sent is subjected to noise reduction.
12、 一种终端, 其特征在于, 包括: 12. A terminal, characterized in that it includes:
接收单元, 用于接收第一音频信号, 以及将所述第一音频信号传输给处 理单元; A receiving unit, configured to receive a first audio signal and transmit the first audio signal to a processing unit;
发送单元, 用于所述接收单元开始接收第一音频信号时, 向第二终端发 送音频记录开始命令, 所述音频记录开始命令, 用于指示所述第二终端开始 记录所述第二终端生成的第二音频信号; 以及所述接收单元结束接收所述第 一音频信号时, 向所述第二终端发送音频记录结束命令, 所述音频记录结束 命令, 用于指示所述第二终端结束记录所述第二音频信号; The sending unit is used to send an audio recording start command to the second terminal when the receiving unit starts to receive the first audio signal. The audio recording start command is used to instruct the second terminal to start recording the second terminal generated the second audio signal; and when the receiving unit finishes receiving the first audio signal, it sends an audio recording end command to the second terminal, and the audio recording end command is used to instruct the second terminal to end recording. the second audio signal;
所述接收单元,还用于接收所述第二终端发送的已记录的所述第二音频 信号, 以及将所述第二音频信号传输给所述处理单元; The receiving unit is also configured to receive the recorded second audio signal sent by the second terminal, and transmit the second audio signal to the processing unit;
所述处理单元, 用于利用所述第二音频信号对所述第一音频信号进行降 噪。 The processing unit is configured to use the second audio signal to perform noise reduction on the first audio signal.
13、 根据权利要求 12所述的终端, 其特征在于, 所述终端还包括同步 单元, 用于 13. The terminal according to claim 12, characterized in that the terminal further includes a synchronization unit for
在所述接收单元开始接收第一音频信号之前, 与所述第二终端执行时间 同步; Before the receiving unit starts receiving the first audio signal, perform time synchronization with the second terminal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间; The audio recording start command includes a starting time, and the starting timestamp is used to indicate the time when the second terminal starts recording the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。 The audio recording end command includes an end time, and the end timestamp is used to indicate the time when the second terminal ends recording the second audio signal.
14、 根据权利要求 12或 13所述的终端, 其特征在于, 所述接收单元 具体用于 14. The terminal according to claim 12 or 13, characterized in that the receiving unit is specifically used to
接收所述第二终端在判断所述第二音频信号对第一音频信号造成干扰 时, 发送的已记录的所述第二音频信号。 Receive the recorded second audio signal sent by the second terminal when it determines that the second audio signal causes interference to the first audio signal.
15、 根据权利要求 12~14任一权利要求所述的终端, 其特征在于, 所 述第一音频信号为所述接收单元通过主麦克接收的音频信号; 第三音频信号 为所述接收单元通过辅麦克接收的音频信号; 15. The terminal according to any one of claims 12 to 14, wherein the first audio signal is an audio signal received by the receiving unit through a main microphone; and the third audio signal is an audio signal received by the receiving unit through a main microphone. Audio signal received by auxiliary microphone;
所述接收单元, 还用于 通过辅麦克接收所述第三音频信号, 以及将所述第三音频信号传输给所 述处理单元; The receiving unit is also used to Receive the third audio signal through the auxiliary microphone, and transmit the third audio signal to the processing unit;
所述处理单元, 还用于 The processing unit is also used to
根据所述第三音频信号和所述第二音频信号, 获得所述第二音频信号的 衰减信息; Obtain the attenuation information of the second audio signal according to the third audio signal and the second audio signal;
所述处理单元, 具体用于 The processing unit is specifically used to
利用所述第二音频信号和所述第二音频信号的衰减信息,对所述第一音 频信号进行降噪。 Using the second audio signal and the attenuation information of the second audio signal, the first audio signal is denoised.
16、 一种终端, 其特征在于, 包括: 16. A terminal, characterized in that it includes:
接收单元, 用于接收第一音频信号, 以及将所述第一音频信号传输给发 送单元; A receiving unit, configured to receive the first audio signal and transmit the first audio signal to the sending unit;
所述发送单元, 用于所述接收单元开始接收第一音频信号时, 向第二终 端发送音频记录开始命令, 所述音频记录开始命令, 用于指示所述第二终端 开始记录所述第二终端生成的第二音频信号; 以及所述接收单元结束接收所 述第一音频信号时, 向所述第二终端发送音频记录结束命令, 所述音频记录 结束命令, 用于指示所述第二终端结束记录所述第二音频信号; The sending unit is configured to send an audio recording start command to the second terminal when the receiving unit starts receiving the first audio signal. The audio recording start command is used to instruct the second terminal to start recording the second audio signal. the second audio signal generated by the terminal; and when the receiving unit finishes receiving the first audio signal, sends an audio recording end command to the second terminal, the audio recording end command is used to instruct the second terminal End recording the second audio signal;
所述发送单元, 还用于向服务器发送所述第一音频信号, 以使得所述服 务器利用所述第二音频信号对所述第一音频信号进行降噪。 The sending unit is also configured to send the first audio signal to the server, so that the server uses the second audio signal to perform noise reduction on the first audio signal.
17、 根据权利要求 16所述的终端, 其特征在于, 所述终端还包括同步 单元, 用于 17. The terminal according to claim 16, characterized in that the terminal further includes a synchronization unit for
在所述接收单元开始接收第一音频信号之前, 与所述第二终端执行时间 同步; Before the receiving unit starts receiving the first audio signal, perform time synchronization with the second terminal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述第二终端记录所述第二音频信号开始的时间; The audio recording start command includes a starting time, and the starting timestamp is used to indicate the time when the second terminal starts recording the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述第二终端记录所述第二音频信号结束的时间。 The audio recording end command includes an end time, and the end timestamp is used to indicate the time when the second terminal ends recording the second audio signal.
18、 根据权利要求 16或 17所述的终端, 其特征在于, 所述第一音频 信号为所述接收单元通过主麦克接收的音频信号; 第三音频信号为所述接收 单元通过辅麦克接收的音频信号; 18. The terminal according to claim 16 or 17, characterized in that: the first audio signal is an audio signal received by the receiving unit through a main microphone; the third audio signal is an audio signal received by the receiving unit through an auxiliary microphone. audio signal;
所述接收单元, 还用于 The receiving unit is also used to
通过辅麦克接收所述第三音频信号, 以及将所述第三音频信号传输给所 述发送单元; Receive the third audio signal through the auxiliary microphone, and transmit the third audio signal to the the sending unit;
所述发送单元, 还用于 The sending unit is also used to
向所述服务器发送所述第三音频信号, 以使得所述服务器根据所述第三 音频信号和所述第二音频信号, 获得所述第二音频信号的衰减信息, 以及利 用所述第二音频信号和所述第二音频信号的衰减信息,对所述第一音频信号 进行降噪。 Send the third audio signal to the server, so that the server obtains attenuation information of the second audio signal based on the third audio signal and the second audio signal, and utilizes the second audio signal signal and the attenuation information of the second audio signal to perform noise reduction on the first audio signal.
1 9、 一种终端, 其特征在于, 包括: 19. A terminal, characterized in that it includes:
接收单元, 用于接收第一终端发送的音频记录开始命令, 所述音频记录 开始命令为所述第一终端开始接收第一音频信号时发送给所述终端, 以及将 所述音频记录开始命令传输给处理单元; A receiving unit configured to receive an audio recording start command sent by the first terminal, the audio recording start command being sent to the terminal when the first terminal starts receiving the first audio signal, and transmitting the audio recording start command. to the processing unit;
所述处理单元, 用于根据所述音频记录开始命令, 开始记录所述终端生 成的第二音频信号; The processing unit is configured to start recording the second audio signal generated by the terminal according to the audio recording start command;
所述接收单元, 还用于接收所述第一终端发送的音频记录结束命令, 以 及将所述音频记录结束命令传输给所述处理单元, 所述音频记录结束命令为 所述第一终端结束接收所述第一音频信号时发送给所述终端; The receiving unit is also configured to receive an audio recording end command sent by the first terminal, and transmit the audio recording end command to the processing unit, where the audio recording end command is the end of reception by the first terminal. The first audio signal is sent to the terminal;
所述处理单元, 还用于根据所述音频记录结束命令, 结束记录所述第二 音频信号, 以及将所述第二音频信号传输给发送单元; The processing unit is also configured to end recording the second audio signal according to the audio recording end command, and transmit the second audio signal to the sending unit;
所述发送单元, 用于 The sending unit is used for
向所述第一终端发送所述第二音频信号, 以使得所述第一终端利用所述 第二音频信号对所述第一音频信号进行降噪; 或者 Send the second audio signal to the first terminal, so that the first terminal uses the second audio signal to perform noise reduction on the first audio signal; or
向服务器发送所述第二音频信号, 以使得所述服务器利用所述第二音频 信号对接收的所述第一终端发送的所述第一音频信号进行降噪。 The second audio signal is sent to the server, so that the server uses the second audio signal to perform noise reduction on the received first audio signal sent by the first terminal.
20、 根据权利要求 1 9所述的终端, 其特征在于, 所述终端还包括同步 单元, 用于 20. The terminal according to claim 19, characterized in that the terminal further includes a synchronization unit for
在所述接收单元接收第一终端发送的音频记录开始命令之前, 与所述第 一终端执行时间同步; Before the receiving unit receives the audio recording start command sent by the first terminal, perform time synchronization with the first terminal;
所述音频记录开始命令中包含起始时间禽 所述起始时间戳用于指示所 述终端记录所述第二音频信号开始的时间; The audio recording start command includes a starting time, and the starting timestamp is used to indicate the time when the terminal starts recording the second audio signal;
所述音频记录结束命令中包含结束时间禽 所述结束时间戳用于指示所 述终端记录所述第二音频信号结束的时间。 The audio recording end command includes an end time, and the end timestamp is used to indicate the time when the terminal ends recording the second audio signal.
21、 根据权利要求 1 9或 20所述的终端, 其特征在于, 所述处理单元, 还用于 21. The terminal according to claim 19 or 20, characterized in that, the processing unit, also used for
确定所述终端是否对所述第一终端造成干扰; Determine whether the terminal causes interference to the first terminal;
当所述终端对所述第一终端造成干扰时, 判断执行根据所述音频记录开 始命令开始记录所述第二音频信号的操作; When the terminal causes interference to the first terminal, determine and execute the operation of starting to record the second audio signal according to the audio recording start command;
当所述终端不对所述第一终端造成干扰时, 判断不执行根据所述音频记 录开始命令开始记录所述第二音频信号的操作, 以及生成响应消息, 将所述 响应消息传输给所述发送单元, 所述响应消息指示不需要利用所述第二音频 信号对所述第一音频信号进行降噪; When the terminal does not cause interference to the first terminal, it is determined not to perform the operation of starting to record the second audio signal according to the audio recording start command, and generates a response message, and transmits the response message to the sending Unit, the response message indicates that the second audio signal does not need to be used to perform noise reduction on the first audio signal;
所述发送单元, 还用于 The sending unit is also used to
向所述第一终端或所述服务器发送所述响应消息。 Send the response message to the first terminal or the server.
22、 根据权利要求 19~21任一权利要求所述的终端, 其特征在于, 所 述处理单元, 还用于 22. The terminal according to any one of claims 19 to 21, characterized in that the processing unit is also used for
根据所述终端与所述第一终端之间的距离, 获得所述第二音频信号的衰 减信息, 以及将所述第二音频信号的衰减信息传输给所述发送单元; Obtain the attenuation information of the second audio signal according to the distance between the terminal and the first terminal, and transmit the attenuation information of the second audio signal to the sending unit;
所述发送单元, 还用于 The sending unit is also used to
向所述第一终端发送所述第二音频信号的衰减信息, 以使得所述第一终 端利用所述第二音频信号和所述第二音频信号的衰减信息对所述第一音频 信号进行降噪; 或者 Send the attenuation information of the second audio signal to the first terminal, so that the first terminal uses the second audio signal and the attenuation information of the second audio signal to reduce the first audio signal. noise; or
向所述服务器发送所述第二音频信号的衰减信息, 以使得所述服务器利 用所述第二音频信号和所述第二音频信号的衰减信息对接收的所述第一终 端发送的所述第一音频信号进行降噪。 Send the attenuation information of the second audio signal to the server, so that the server uses the second audio signal and the attenuation information of the second audio signal to receive the first audio signal sent by the first terminal. An audio signal is subjected to noise reduction.
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