CN111787453A - Sound signal transmission control method, circuit, earphone and readable storage medium - Google Patents
Sound signal transmission control method, circuit, earphone and readable storage medium Download PDFInfo
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- CN111787453A CN111787453A CN202010765784.2A CN202010765784A CN111787453A CN 111787453 A CN111787453 A CN 111787453A CN 202010765784 A CN202010765784 A CN 202010765784A CN 111787453 A CN111787453 A CN 111787453A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
Abstract
The invention discloses a sound signal transmission control method, a circuit, an earphone and a readable storage medium, wherein the sound signal transmission control method comprises the steps of controlling a sound transmission assembly to pick up sound signals, wherein the sound signals comprise human sound signals and noise signals; comparing the noise signal with a preset noise threshold value, and controlling to operate an online transmission mode or a wireless transmission mode; when the noise signal is smaller than a preset noise threshold value, controlling to operate an online transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound; when the noise signal is larger than or equal to the preset noise threshold value, the wireless transmission mode is controlled to operate so as to transmit the human sound signal and control the sound production assembly to produce sound. The invention solves the problem that the users can communicate face to face in a noise interference environment without any action, and can realize the instant barrier-free communication of the users face to face.
Description
Technical Field
The invention relates to the technical field of earphone pickup enhancement, in particular to a sound signal transmission control method, a circuit, an earphone and a readable storage medium.
Background
When the earphone works in an environment with severe noise, such as a mine, an airport ground service, a battlefield, a helicopter, an armored car, a ship deck and other high-noise environments, a user can select a proper noise reduction earplug according to the noise level to protect the hearing in order to avoid the influence of the noise on the hearing. However, when a user wears the noise reducing earplug, the perception of ambient sound may be reduced, and even the face-to-face communication between two or more people may be affected. Especially in a battlefield environment, the ability of the soldier to sense the environment is particularly important, which is related to the life safety of the soldier, so that the tactical headset for the soldier needs to have the functions of hearing protection and sound pickup enhancement at the same time.
Therefore, the earphone with the sound-pickup enhancing function is provided, the perception capability of the environmental sound can be recovered or improved by turning on the sound-pickup enhancing function after the earphone is worn, and meanwhile, the sound pressure can be automatically suppressed to be at the proper sound pressure level when high noise is encountered, so that the hearing can be protected from being damaged by the noise. However, the earphone with the sound pickup enhancement function cannot provide face-to-face communication through ambient sound pickup due to interference of high noise when the earphone is exposed to high ambient noise.
Disclosure of Invention
The invention mainly aims to provide a sound signal transmission control method, a circuit, an earphone and a readable storage medium, aiming at solving the problem that no action is needed when users communicate face to face under the noise interference environment, the system adaptively switches the working mode and realizes the instant barrier-free communication of the users face to face.
In order to achieve the above object, the present invention provides a sound signal transmission control method applied to an earphone, where the earphone includes a sound transmission component for picking up a sound signal, a sound generation component for generating sound, and a circuit board, the circuit board is provided with a wireless component for receiving a radio signal corresponding to a human sound signal, and the sound signal transmission control method includes:
step S10, controlling the sound transmission component to pick up sound signals, wherein the sound signals comprise human voice signals and noise signals;
step S20, comparing the noise signal with a preset noise threshold value, and controlling to operate an online transmission mode or a wireless transmission mode;
step S30, when the noise signal is smaller than a preset noise threshold, controlling to operate an online transmission mode to transmit the human voice signal and control the sound production assembly to produce sound;
and step S40, when the noise signal is greater than or equal to a preset noise threshold value, controlling to operate a wireless transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound.
Optionally, the operating the online transmission mode in step S300 includes:
step S31, controlling the voice transmission component to pick up a human voice signal;
step S32, the voice signals picked up by the voice transmission component are converted;
and step S33, receiving the converted human voice signal, and controlling the sound production assembly to produce sound.
Optionally, the wireless transmission mode in step S400 includes:
step S41, controlling the wireless component to receive a radio signal corresponding to the human voice signal;
step S42, the radio signal corresponding to the voice signal received by the wireless component is processed by conversion;
and step S43, receiving the radio signal after the conversion processing, and controlling the sound production assembly to produce sound.
Optionally, the preset noise threshold is in a range of 80dB to 100 dB.
The invention also provides a sound signal transmission control circuit, which is applied to an earphone, wherein the earphone comprises a sound transmission assembly for picking up a sound signal, a sound production assembly for producing sound and a circuit board, the circuit board is provided with a wireless assembly for receiving a radio signal corresponding to a human sound signal, the sound signal transmission control circuit also comprises a processor arranged on the circuit board, and the wireless assembly is mutually connected with the processor;
the acoustic transmission assembly is used for picking up sound signals, and the sound signals comprise human voice signals and noise signals;
the processor is used for comparing the noise corresponding to the noise signal with a preset noise threshold value and controlling to operate an online transmission mode or a wireless transmission mode; when the noise corresponding to the noise signal is smaller than a preset noise threshold value, controlling to operate an online transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound; when the noise corresponding to the noise signal is larger than or equal to a preset noise threshold value, controlling to operate a wireless transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound;
the wireless assembly is used for sending the voice signals picked up by the voice transmission assembly, receiving the radio signals corresponding to the voice signals, converting and processing the radio signals and outputting the radio signals to the voice production assembly.
Optionally, the sound transmission assembly comprises two sets of microphones for picking up a human voice signal and/or a noise signal, respectively.
Optionally, the sound signal transmission control circuit further includes an analog-to-digital/digital-to-analog converter disposed on the circuit board, and the analog-to-digital/digital-to-analog converter is connected to the processor;
the analog-to-digital/digital-to-analog converter is used for connecting communication equipment to convert voice signals of the communication equipment so as to send and receive the voice signals.
Optionally, the sound signal transmission control circuit further includes a sound control unit disposed on the circuit board, and the sound control unit is connected to the processor;
and the voice control unit is used for controlling the communication terminal by voice.
The invention also proposes a headset comprising: a memory, a processor and a sound signal transmission control program stored on the memory and executable on the processor, the sound signal transmission control program when executed by the processor implementing the steps of the sound signal transmission control method as described above.
The invention also proposes a readable storage medium on which a sound signal transmission control program is stored, which, when executed by a processor, implements the steps of the sound signal transmission control method as described above.
The technical scheme of the invention applies the sound signal transmission control method to the earphone, the earphone comprises a sound transmission component for picking up sound signals, a sound production component for producing sound and a circuit board, and the circuit board is provided with a wireless component for receiving radio signals corresponding to human sound signals. In the scheme, when two or more users communicate face to face, aiming at the noise of the environment, the earphone with the sound signal transmission control method is worn at the same time, and the sound transmission assembly in the earphone is controlled to pick up the sound signal, namely the human sound signal of the user and the noise signal in the environment are picked up; the method comprises the steps that a circuit board processes a picked-up voice signal of a user and a noise signal in the environment, compares the noise signal picked up by a voice transmission component with a preset noise threshold value, and controls an earphone to operate in an online transmission mode or a wireless transmission mode, specifically, when the noise signal is smaller than the preset noise threshold value, the earphone is controlled to operate in the online transmission mode so as to transmit the voice signal and control a sound production component to produce sound; when the noise signal is larger than or equal to a preset noise threshold value, the earphone is controlled to operate in a wireless transmission mode so as to transmit the voice signal, and the sounding assembly is controlled to sound, namely control. That is, in the users who speak face to face, the earphone worn by any one of the users can directly pick up the voices of other speaking users through the judgment of the noise signal size in the environment picked up by the sound transmission component, and the voices are emitted by the sound production component after being processed by the circuit board; or the wireless component can receive radio signals sent by the earphones of other speaking users, and the wireless component processes the received radio signals to transmit the received radio signals to the sound production component to produce sound. The technical scheme of the invention solves the problem that the users can communicate face to face in a noise interference environment without any action, and can realize the face to face instant barrier-free communication of the users.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating an application scenario of a method for controlling transmission of an audio signal according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for controlling audio signal transmission according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating an embodiment of an on-line transmission mode of the method for controlling transmission of audio signals according to the present invention;
FIG. 4 is a flowchart illustrating an embodiment of a wireless transmission mode of the method for controlling transmission of audio signals according to the present invention;
FIG. 5 is a schematic diagram of an application scenario of an online transmission mode according to an embodiment of a method for controlling transmission of a sound signal;
FIG. 6 is a schematic view of an application scenario of a wireless transmission mode according to an embodiment of a method for controlling transmission of an audio signal;
FIG. 7 is a schematic diagram of an embodiment of an audio signal transmission control circuit according to the present invention;
FIG. 8 is a diagram illustrating an exemplary processor configuration of the audio signal transmission control circuit according to the present invention;
FIG. 9 is a circuit diagram of a first embodiment of an audio signal transmission control circuit according to the present invention;
FIG. 10 is a circuit diagram of a second embodiment of an audio signal transmission control circuit according to the present invention;
FIG. 11 is a circuit diagram of a third embodiment of an audio signal transmission control circuit according to the present invention;
fig. 12 is a schematic structural diagram of a first embodiment of the earphone of the present invention;
fig. 13 is a schematic structural diagram of a second embodiment of the earphone according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a sound signal transmission control method, which is applied to an earphone.
In one embodiment, referring to fig. 1 to 2, the sound signal transmission control method includes:
step S10, controlling the sound transmission component to pick up sound signals, wherein the sound signals comprise human voice signals and noise signals;
step S20, comparing the noise signal with a preset noise threshold value, and controlling to operate an online transmission mode or a wireless transmission mode;
step S30, when the noise signal is smaller than a preset noise threshold, controlling to operate an online transmission mode to transmit the human voice signal and control the sound production assembly to produce sound;
and step S40, when the noise signal is greater than or equal to a preset noise threshold value, controlling to operate a wireless transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound.
In this embodiment, referring to fig. 1, the explanation of face-to-face speech of two users or a plurality of users in the present solution is specifically explained in terms of face-to-face speech of user a and user B in a noisy environment. In the scheme, the voice transmission assembly 200 is used for picking up the human voice signal and the noise signal, the human voice signal and the noise signal are processed by the processor 101, and the size of the noise signal is judged so as to control whether the wireless assembly 300 is started or not to transmit the human voice signal. It can be understood that, when the user a is speaking to the user B, the sound signal includes the human sound signal when the user a speaks and the noise signal in the environment, the sound emitting assembly 400 worn by the user B can be controlled by the processor 101 according to the magnitude of the picked-up noise signal, so that the human sound signal of the user a is directly picked up by the sound transmitting assembly 200, and the sound emitting assembly 400 is controlled to emit, so that the user B can hear the speech of the user a clearly, in this way, the sound emitting assembly 400 transmits the speech sound of the user on line; or when the user a speaks, the headset worn by the user B receives the radio signal sent by the headset worn by the user a through the wireless component 300, decodes the received radio signal through the headset worn by the user B to identify the speaking content of the user a, and sends out the sound through the sound-emitting component 400 of the headset worn by the user B.
Meanwhile, when the user A speaks, the processor 101 controls whether the wireless component 300 is started or not according to the size of the noise signal picked up by the sound transmission component 200 in the environment, so that the sound of the user speaking picked up by the sound transmission component 200 is transmitted to the earphone worn by the user B through the wireless component 300 by the wireless component 300, the earphone of the user B can transmit the received human voice signal to the sound production component 400 to produce the sound, and the user B can also hear the speaking of the user A clearly, and the speaking sound of the user is wirelessly transmitted by the wireless component 300 in this way.
In the above embodiment, referring to fig. 3, the operating the online transmission mode in step S300 includes:
step S31, controlling the voice transmission component to pick up a human voice signal;
step S32, the voice signals picked up by the voice transmission component are converted;
and step S33, receiving the converted human voice signal, and controlling the sound production assembly to produce sound.
It should be noted that, the sound transmission assembly includes a plurality of microphones, as shown in fig. 5, the sound transmission assembly includes a microphone 201, a microphone 202, a microphone 203 and a microphone 204, when the noise source n10 is smaller than the preset noise threshold, the sound SS20 emitted by the user a is picked up by the microphone 202 of the user B, and is input to the circuit board 100 through the signal transmission path SS21 for processing, and then is output to the sound generating device 402 through the signal transmission path SS22 for driving sound generation, so that the sound emitted by the user a can be heard in human ears; the sound SS10 emitted by the user B is picked up by the user A microphone 201, is input to the circuit board 100 through the signal transmission path SS11 for processing, is output to the sound production device 401 through the signal transmission path SS12 for driving sound production, and the sound emitted by the user B is heard in the human ear. Further, for better close-to-natural-environment hearing, both the user a and the user B can hear the environmental sound and a small amount of noise, restore the real-scene environment, and at the time of sound transmission, the microphone 203 and the microphone 204 are simultaneously picking up the sound signals and inputting the sound signals to the circuit board 100 via the signal transmission path SS13 and the transmission path SS23 to wait.
In the above embodiment, referring to fig. 4, the wireless transmission mode in step S400 includes:
step S41, controlling the wireless component to receive a radio signal corresponding to the human voice signal;
step S42, the radio signal corresponding to the voice signal received by the wireless component is processed by conversion;
and step S43, receiving the radio signal after the conversion processing, and controlling the sound production assembly to produce sound.
As shown in fig. 6, when the noise source n10 is greater than or equal to the preset noise threshold, the sound signals picked up by the microphone 201 and the microphone 202 are transmitted to the circuit board 100 for processing, and then the operation mode is automatically switched, and the communication mode at this time is changed to the wireless transmission mode. Specifically, the sound SS20 emitted by the user a is picked up by the user a microphone 203, and is input to the circuit board 100 through the signal transmission path SS13 for processing, then the antenna 301 in the wireless component emits a radio signal, and the antenna 301 in the wireless component in the user B receives the radio signal, and after the signal processing is performed on the circuit board 100, the signal transmission path SS22 outputs the radio signal to the sound generating device 402 for driving sound generation, so that the sound emitted by the user a can be heard in the human ear; the sound SS10 emitted by the user B is picked up by the user B microphone 204, and is input to the circuit board 100 through the signal transmission path SS23 for processing, and then the radio signal is emitted by the antenna 301 in the radio module, and is received by the antenna 301 in the radio module in the user a, and after the signal processing is performed by the circuit board 100, the sound is output to the sound production device 401 through the signal transmission path SS12 for driving the sound production, and the sound emitted by the user B is heard in the ear.
In the above embodiment, the sound transmission assembly 200 is also called a microphone, and the microphone is classified into an air conduction microphone (including an electret ECM microphone, a silicon microphone, and the like) and a bone conduction microphone (including an electromagnetic bone conduction microphone, a piezoelectric bone conduction microphone, and the like), and when the microphone 203 and the microphone 204 adopt the bone conduction microphone, a signal transmission path is changed from SS20 to SS20a, and SS10 to SS10 a. The sound generating device is an acoustic driver, also called a speaker or a horn, and the sound generating assembly 400 may be, but is not limited to, an air vibration sound generating device, an electromagnetic vibration sound generating device, or a piezoelectric sound generating device. The processor 101 may be, but is not limited to, a single chip, a DSP, a programmable FPGA, etc. to perform judgment processing on the noise signal in the present solution, and perform digital processing on the voice signal of the user speaking. The wireless component 300 may employ mature wireless technologies including, but not limited to, bluetooth technology, 2.4GHz transmission technology, VHF or UHF, WIFI networking technology, etc., as selected by the application.
Furthermore, in the scheme, a plurality of users communicate, and the number of the users can be in the range of 2-12 persons; the wireless transmission range of wireless assembly 300 may be, but is not limited to, 10-100 meters. Therefore, the application range of the earphone with the sound signal transmission control method in the scheme is larger.
In this embodiment, the range of the preset noise threshold is 80dB to 100 dB. It is understood that the preset noise threshold may be 80dB, 90dB, 100dB, etc., and is set according to the actual application.
Specifically, referring to fig. 1, fig. 5 and fig. 6, when the preset noise threshold is 80dB and the noise source in the environment is less than 80dB, the user a and the user B communicate with each other through online transmission; when the noise source in the environment is greater than or equal to 80dB, the communication between the user A and the user B is carried out through wireless transmission.
The technical scheme of the invention applies the sound signal transmission control method to the earphone, the earphone comprises a sound transmission assembly 200 for picking up sound signals, a sound production assembly 400 for producing sound and a circuit board, and the circuit board is provided with a wireless assembly 300 for receiving radio signals corresponding to human sound signals. In the scheme, when two or more users communicate face to face, aiming at the noise of the environment, the headset with the sound signal transmission control method is worn at the same time, so that the sound transmission assembly 200 in the headset is controlled to pick up the sound signals, namely, the human sound signals of the users and the noise signals in the environment; the circuit board processes the picked-up voice signal of the user and the noise signal in the environment, compares the noise signal picked up by the voice transmission component 200 with a preset noise threshold value, and controls the earphone to operate in an online transmission mode or a wireless transmission mode, specifically, when the noise signal is smaller than the preset noise threshold value, the earphone is controlled to operate in the online transmission mode so as to transmit the voice signal, and the voice generation component 400 is controlled to generate voice; when the noise signal is greater than or equal to the preset noise threshold value, the earphone is controlled to operate in a wireless transmission mode so as to transmit the human voice signal, and the sound production assembly 400 is controlled to produce sound, namely control. That is, in the users who speak face to face, the earphone worn by any one of the users can directly pick up the voices of other users who speak through the judgment of the magnitude of the noise signal in the environment picked up by the sound-emitting component 200, and the voices are emitted through the sound-emitting component 400 after being processed by the circuit board 100; alternatively, radio signals from the earphones of other speaking users may be received by the wireless assembly 300, and the received radio signals may be processed by the wireless assembly 300 for transmission to the sound emitting assembly 400 for emitting sound. The technical scheme of the invention solves the problem that the users can communicate face to face in a noise interference environment without any action, and can realize the face to face instant barrier-free communication of the users.
The invention also provides a sound signal transmission control circuit, which is applied to an earphone, wherein the earphone comprises a sound transmission assembly for picking up a sound signal, a sound production assembly for producing sound and a circuit board, the circuit board is provided with a wireless assembly for receiving a radio signal corresponding to a human sound signal, as shown in fig. 7 to fig. 11, the sound signal transmission control circuit further comprises a processor arranged on the circuit board, and the wireless assembly is mutually connected with the processor;
the acoustic transmission assembly is used for picking up sound signals, and the sound signals comprise human voice signals and noise signals;
the processor is used for comparing the noise corresponding to the noise signal with a preset noise threshold value and controlling to operate an online transmission mode or a wireless transmission mode; when the noise corresponding to the noise signal is smaller than a preset noise threshold value, controlling to operate an online transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound; when the noise corresponding to the noise signal is larger than or equal to a preset noise threshold value, controlling to operate a wireless transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound;
the wireless assembly is used for sending the voice signals picked up by the voice transmission assembly, receiving the radio signals corresponding to the voice signals, converting and processing the radio signals and outputting the radio signals to the voice production assembly.
The sound transmission component comprises two groups of microphones which are used for respectively picking up human sound signals and/or noise signals.
It should be noted that, referring to fig. 9 to fig. 11, the sound signal transmission control circuit further includes an analog-to-digital converter 103 and a digital-to-analog converter 102 disposed on the circuit board;
the input end of the analog-to-digital converter 103 is connected to the sound transmission assembly 200, the output end of the analog-to-digital converter 103 is connected to the processor 101, the output end of the processor 101 is respectively connected to the first input end of the digital-to-analog converter 102 and the input end of the wireless assembly 300, and the output end of the digital-to-analog converter 102 is connected to the sound generation assembly 400;
the analog-to-digital converter 103 is configured to convert the sound signal picked up by the sound emitting assembly 400 and output an audio signal and a noise signal;
the processor 101 is configured to compare noise corresponding to the noise signal output by the analog-to-digital converter 103 with a preset noise threshold, so as to control the audio signal output by the analog-to-digital converter 103 to be output through the sound-generating component 400 or output through the wireless component 300;
the digital-to-analog converter 102 is configured to perform digital-to-analog conversion on the audio signal output by the processor 101, and output the audio signal through the sound generating component 400.
In this embodiment, the acoustic transmission assembly 200 picks up the human acoustic signal and the noise signal, and outputs the signals to the analog-to-digital converter 103 for analog-to-digital conversion, and then the processor 101 compares the noise corresponding to the noise signal with a preset noise threshold to determine the noise level corresponding to the noise signal, so as to control whether the wireless assembly 300 is started. When the noise corresponding to the noise signal is smaller than the preset noise threshold, the processor 101 controls the human voice signal picked up by the voice transmission assembly 200 to perform digital-to-analog conversion through the digital-to-analog converter 102, so as to emit a voice through the voice emitting assembly 400; when the noise corresponding to the noise signal is greater than or equal to the preset noise threshold, the processor 101 controls the voice transmission assembly 200 to pick up the human voice signal and transmit the human voice signal through the wireless assembly 300.
It can be understood that, when the user a is speaking to the user B, the sound transmission component 200 worn by the user a and used for wearing the earphone can directly pick up the human voice signal of the user a through the sound transmission component 200 and control the sound generation component 400 to emit the human voice signal when the user a wears the earphone and judges that the noise corresponding to the noise signal is smaller than the preset noise threshold, so that the user B can clearly hear the speech of the user a, and in this way, the sound generation component 400 transmits the speech sound of the user on line; or when the user a speaks, when the user B wears the earphone to judge that the noise corresponding to the noise signal is greater than or equal to the preset noise threshold, the earphone worn by the user B receives the radio signal sent by the earphone worn by the user a through the wireless component 300, the earphone worn by the user B decodes the received radio signal to identify the speaking content of the user a, and the sound is sent out through the sound-emitting component 400 of the earphone worn by the user B.
Meanwhile, when the user A speaks, the size of the noise signal in the environment can be picked up according to the sound transmission component 200, when the user A wears the earphone and judges that the noise corresponding to the noise signal is larger than or equal to the preset noise threshold value, the processor 101 controls the wireless component 300 to be started, so that the fact that the voice of the user A speaking picked up by the sound transmission component 200 is sent to the earphone worn by the user B through the wireless component 300 by the wireless component 300 is achieved, the earphone of the user B can transmit the received human voice signal to the sound production component 400 to produce the voice, the user B can hear the speech of the user A clearly, and the mode is that the wireless component 300 wirelessly transmits the speech voice of the user A.
In an embodiment, referring to fig. 9 to 11, the sound transmission assembly 200 comprises two sets of microphones for picking up a human voice signal and/or a noise signal, respectively, the first set of microphones may be the microphone 201 and the microphone 202 in the figure, and the second set of microphones may be the microphone 203 and the microphone 204 in the figure. The first group of microphones can be used for picking up own voice signals and voice signals of other users, and the second group of microphones can also be used for picking up own voice signals and noise signals. It can be understood that the earphone of the sound signal transmission control method of the present invention has a distinction between the left ear and the right ear, and the earphone of each ear may have one or two sets of microphones, but the same sound signal transmission control circuit is used. In particular, the earphone of the left ear and the earphone of the right ear each have a microphone that picks up the own human voice signal and the human voice signals of the other users, and the earphone of the left ear and/or the earphone of the right ear may also have a microphone that picks up the own human voice signal and the noise signal. That is, in this embodiment, the microphone 201 and the microphone 202 can pick up their own voice signals, and the voice signals and the noise signals of other users, and the microphone 203 and the microphone 204 can pick up their own voice signals and noise signals.
Further, when a pair of earphones has only one set of microphones for picking up a human voice signal and a noise signal, the microphones may be disposed on the earphones of the left ear or the earphones of the right ear, as shown in fig. 9, which is not specifically described herein. When the headphone for the left ear and the headphone for the right ear have the microphone 203 and the microphone 204, respectively, as shown in fig. 10 and fig. 11, the air conduction microphone is employed as both the microphone 203 and the microphone 204, and a human voice signal and a noise signal can be picked up; the microphones of the microphone 203 and the microphone 204 are bone conduction microphones, and can pick up human voice signals and noise signals; when the microphone 203 is a bone conduction microphone, a human voice signal can be picked up, and when the microphone 204 is an air conduction microphone, a noise signal can be picked up. The specific microphone combination setting of the earphone with the sound signal transmission control method can be set according to practical application conditions, and is not limited herein. Further, when the microphone 203 and the microphone 204 both have microphones for picking up the personal voice signal and the noise signal of the user, a two-way noise reduction technology can be realized, a better noise reduction effect is achieved for suppressing random noise, and the speaking sound of the user is clearer. It is also possible that a pair of earphones has only one set of microphones for picking up the human voice signal and the noise signal, and may be arranged on the earphone of the left ear or the earphone of the right ear, as shown in fig. 9, which is not specifically described herein.
In an embodiment, referring to fig. 8 to 11, the processor 101 includes a first digital signal processing unit 101a and a second digital signal processing unit 101 b;
the input end of the first digital signal processing unit 101a and the input end of the second digital signal processing unit 101b are respectively connected to the output end of the analog-to-digital converter 103, the output end of the first digital signal processing unit 101a is connected to the input end of the digital-to-analog converter 102, and the output end of the second digital signal processing unit 101b is connected to the input end of the wireless component 300;
the first digital signal processing unit 101a is configured to perform digital signal processing on a group of sound signals picked up by the microphones;
the second digital signal processing unit 101b is configured to perform digital signal processing on sound signals picked up by another group of microphones.
Based on the above embodiment, the microphone that picks up the personal voice signal and the personal voice signals of other users may be processed by the first digital signal processing unit 101a in the processor 101, and output after digital-to-analog conversion by the digital-to-analog converter 102, that is, the first personal voice online transmission mode; the microphone picking up the personal voice signal and the noise signal can be processed by the second digital signal processing unit 101b in the processor 101 to reduce the noise and improve the personal voice quality of the user, and then the microphone is output by the wireless component 300, namely, the second personal voice wireless transmission mode.
In this embodiment, the plurality of microphones respectively and simultaneously pick up the personal sound signals, the microphones of the personal sound signals of other users and the noise signals in the environment, perform analog-to-digital conversion on the analog-to-digital signals through the analog-to-digital converter 103, input the analog-to-digital signals into the processor 101, perform digital signal processing through the first digital processing unit, transmit the digital-to-analog signals to the digital-to-analog converter 102, and then respectively transmit the digital-to-analog signals to the sound production assembly 400, and the sound production assembly 400 produces sound to complete the sound collection enhancement function.
In order to ensure that the transmitted voice of the user A does not have the problem of intermittence or word dropping when the working mode is automatically switched, in the actual work, the microphone for picking up the voice signal and the noise signal of the user A is always in the working state and waits for the switching of the working mode at any time. When the working mode is switched to the wireless transmission mode, the microphone picking up the personal voice signal and the noise signal is subjected to analog-to-digital conversion by the analog-to-digital converter 103, then is input into the processor 101, is subjected to digital signal processing by the second digital signal processing unit 101b, is transmitted to the wireless component 300, and transmits the signal output by the second digital signal processing unit 101b to the wireless component 300 through the antenna of the wireless component 300 to transmit a radio signal, so that the transmission of the personal voice signal of the user A is completed; when the user B receives the voice signal of the user A, the wireless component 300 which is worn by the user B and used for wearing the earphone is used for carrying out signal processing, the signal is output to the digital-to-analog converter 102 for digital-to-analog signal conversion, then the digital-to-analog signal is respectively transmitted to the sound production component 400, and the sound production component 400 produces sound to complete a sound pickup enhancing function loop.
In an embodiment, referring to fig. 7 and fig. 11, the sound signal transmission control circuit further includes an analog-to-digital/digital-to-analog converter 104 disposed on the circuit board, wherein the analog-to-digital/digital-to-analog converter 104 is connected to the processor 101;
the analog-to-digital/digital-to-analog converter 104 is used for connecting to the communication device 600 to perform conversion processing on the voice signal of the communication device 600, so as to transmit and receive the voice signal.
It can be understood that the a/d converter 104 is connected to the communication device 600, and is configured to perform a/d conversion on a voice signal of the communication terminal, and has a remote transceiver function after being connected.
In the above embodiments, referring to fig. 9 to fig. 11, the processor 101 further includes a voice control unit 101c, and the voice control unit 101c is connected between the second digital signal processing unit 101b and the wireless component 300;
and the voice control unit 101c is used for controlling the communication terminal by voice.
Further, in order to save system resources and reduce power consumption, in the processor 101, the voice control unit 101c has a voiceprint recognition function, normal noise is not sensitive to it, the signal transmitting channel of the wireless component 300 can be activated only by the user's own voice signal, and when there is no voice signal in the noisy signal, the wireless component 300 is only in a receiving state, and a low power consumption operating mode is maintained.
In an embodiment, referring to fig. 11, the sound signal transmission control method further includes a PTT key 701, and the PTT key 701 is interconnected with the processor 101;
the PTT button 701 is used to control the communication device 600 to transmit a voice signal.
The sound signal transmission control method further comprises a mode switching key 702, wherein the mode switching key 702 is connected with the processor 101;
the mode switching key 702 is configured to switch to the voice control unit 101c to control the communication device 600.
In the above embodiment, in the actual application process, both the PTT button 701 and the mode switching button 702 are provided, and the communication device 600 is not included in the headset and belongs to an external device; specifically, when communication needs to be performed through the communication device 600, a voice signal can be sent only by pressing the PTT key 701, and the sending function of the communication device 600 is controlled by the voice control unit 101c after the PTT key 701 is pressed; at the same time, the signal path from the second DSP unit 101b to the wireless component 300 is cut off, so as to enhance the security of communication. When communication is required to be performed through the communication device 600, because the PTT button 701 cannot be operated by the user's hand during operation or tactical movement, the mode switching button 702 can be pressed to switch to the voice-controlled operating mode of the communication terminal, and in the voice-controlled operating mode, the user can trigger the communication device 600 in the voice-controlled operating mode without operating the PTT button 701, thereby completing the voice sending function of the communication device 600.
In the above embodiment, the earphone having the sound signal transmission control method may be a headphone, and as shown in fig. 12, a simplified installation diagram of the right ear is shown, and since the left ear function is identical to that of the right ear, the description thereof is omitted. The earphone shell 3001 is internally provided with a microphone 201, a microphone 203, a sounding device 401 and a circuit board 100; because the volume space of the headphone shell is large, the circuit board 100 can be directly installed in the headphone shell 3001, and according to the product design requirements, the circuit board 100 can also be installed at a position outside the headphone shell alone, for example, by adding a box or a wire control device.
The earphone having the sound signal transmission control method may also be an earphone type earphone, as shown in fig. 13, which shows a mounting diagram of a right ear, and a description thereof is omitted because the left ear function is identical to that of the right ear. The earphone shell 3000 is internally provided with a microphone 201, a microphone 203 and a sounding device 401, and the circuit board 100 is arranged at a position outside the earphone shell; when the processor 101 having a smaller size is selected, the area of the circuit board 100 may be reduced, and the circuit board 100 may be directly mounted in the earphone case 3000.
The invention also proposes a headset comprising: a memory, a processor and a sound signal transmission control program stored on the memory and executable on the processor, the sound signal transmission control program when executed by the processor implementing the steps of the sound signal transmission control method as described above.
The invention also proposes a readable storage medium on which a sound signal transmission control program is stored, which, when executed by a processor, implements the steps of the sound signal transmission control method as described above.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the specification and drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A sound signal transmission control method is applied to earphones, the earphones comprise a sound transmission component for picking up sound signals, a sound production component for producing sound and a circuit board, the circuit board is provided with a wireless component for receiving radio signals corresponding to human sound signals, and the sound signal transmission control method is characterized by comprising the following steps:
step S10, controlling the sound transmission component to pick up sound signals, wherein the sound signals comprise human voice signals and noise signals;
step S20, comparing the noise signal with a preset noise threshold value, and controlling to operate an online transmission mode or a wireless transmission mode;
step S30, when the noise signal is smaller than a preset noise threshold, controlling to operate an online transmission mode to transmit the human voice signal and control the sound production assembly to produce sound;
and step S40, when the noise signal is greater than or equal to a preset noise threshold value, controlling to operate a wireless transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound.
2. The sound signal transmission control method of claim 1, wherein the operating the online transmission mode in step S300 comprises:
step S31, controlling the voice transmission component to pick up a human voice signal;
step S32, the voice signals picked up by the voice transmission component are converted;
and step S33, receiving the converted human voice signal, and controlling the sound production assembly to produce sound.
3. The sound signal transmission control method of claim 1, wherein the wireless transmission mode in step S400 includes:
step S41, controlling the wireless component to receive a radio signal corresponding to the human voice signal;
step S42, the radio signal corresponding to the voice signal received by the wireless component is processed by conversion;
and step S43, receiving the radio signal after the conversion processing, and controlling the sound production assembly to produce sound.
4. The sound signal transmission control method according to any one of claims 1 to 3, wherein the preset noise threshold is in a range of 80dB to 100 dB.
5. A sound signal transmission control circuit is applied to earphones, the earphones comprise a sound transmission component for picking up sound signals, a sound production component for producing sound and a circuit board, the circuit board is provided with a wireless component for receiving radio signals corresponding to human sound signals, and the sound signal transmission control circuit is characterized by further comprising a processor arranged on the circuit board, and the wireless component is mutually connected with the processor;
the acoustic transmission assembly is used for picking up sound signals, and the sound signals comprise human voice signals and noise signals;
the processor is used for comparing the noise corresponding to the noise signal with a preset noise threshold value and controlling to operate an online transmission mode or a wireless transmission mode; when the noise corresponding to the noise signal is smaller than a preset noise threshold value, controlling to operate an online transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound; when the noise corresponding to the noise signal is larger than or equal to a preset noise threshold value, controlling to operate a wireless transmission mode so as to transmit the human voice signal and control the sound production assembly to produce sound;
the wireless assembly is used for sending the voice signals picked up by the voice transmission assembly, receiving the radio signals corresponding to the voice signals, converting and processing the radio signals and outputting the radio signals to the voice production assembly.
6. Sound signal transmission control circuit according to claim 5, characterized in that the sound transmission member comprises two groups of microphones for picking up a human sound signal and/or a noise signal, respectively.
7. The audio signal transmission control circuit of claim 5, further comprising an analog-to-digital/digital-to-analog converter disposed on the circuit board, the analog-to-digital/digital-to-analog converter being interconnected with the processor;
the analog-to-digital/digital-to-analog converter is used for connecting communication equipment to convert voice signals of the communication equipment so as to send and receive the voice signals.
8. The voice signal transmission control circuit according to claim 7, further comprising a voice control unit disposed on the circuit board, the voice control unit being interconnected with the processor;
and the voice control unit is used for controlling the communication terminal by voice.
9. An earphone, characterized in that the earphone comprises: a memory, a processor and a sound signal transmission control program stored on the memory and executable on the processor, the sound signal transmission control program when executed by the processor implementing the steps of the sound signal transmission control method according to any one of claims 1 to 4.
10. A readable storage medium having stored thereon a sound signal transmission control program which, when executed by a processor, implements the steps of the sound signal transmission control method according to any one of claims 1 to 4.
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| CN113534672A (en) * | 2021-06-28 | 2021-10-22 | 青岛海尔空调器有限总公司 | Method and device for controlling intelligent equipment and intelligent equipment |
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| JPH07312634A (en) * | 1994-05-18 | 1995-11-28 | Nippon Telegr & Teleph Corp <Ntt> | Transmitter/receiver for using earplug-shaped transducer |
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