WO2016123901A1 - Terminal et procédé permettant de lire un signal audio de manière directionnelle par ledit terminal - Google Patents

Terminal et procédé permettant de lire un signal audio de manière directionnelle par ledit terminal Download PDF

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Publication number
WO2016123901A1
WO2016123901A1 PCT/CN2015/083793 CN2015083793W WO2016123901A1 WO 2016123901 A1 WO2016123901 A1 WO 2016123901A1 CN 2015083793 W CN2015083793 W CN 2015083793W WO 2016123901 A1 WO2016123901 A1 WO 2016123901A1
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Prior art keywords
terminal
audio signal
user
location information
scene
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PCT/CN2015/083793
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English (en)
Chinese (zh)
Inventor
李嘉为
尚华
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中兴通讯股份有限公司
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Publication of WO2016123901A1 publication Critical patent/WO2016123901A1/fr

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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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics

Definitions

  • the present invention relates to the field of audio information technology, and in particular, to a terminal and a method for directionally playing an audio signal.
  • Existing audio electronic devices usually use electric speakers, that is, the use of a magnetic field to effect the electro-acoustic transduction of the current-carrying conductor, such as a moving coil speaker.
  • This traditional design method is used when the user listens to the program, because the sound field of the audio electronic device is transmitted to all directions of the space, and the entire broadcasting environment is full of sound, so the directivity is poor, and the range of the external release is not controlled.
  • the existing audio electronic device application has the disadvantage of interfering with others and failing to keep the content of the audio signal confidential.
  • the embodiment of the invention solves at least the technical problem that the user does not interfere with others when playing the audio signal in a public place without wearing the earphone, and the content of the played audio signal is not leaked.
  • a method for a terminal to play an audio signal by using a terminal includes the following steps:
  • the high frequency signal and the original audio signal are respectively output at a corresponding output power and an output angle, and the high frequency signal and the original audio signal are transmitted to the user direction, and are self-demodulated during transmission, so that the user can hear the clear original. audio signal.
  • the obtaining location information of the user relative to the terminal specifically includes:
  • the method further includes:
  • the audio signal playing triggering instruction determining whether the terminal is currently in a scene in which the directional playing mode needs to be turned on;
  • the obtaining the location information of the user relative to the terminal is specifically:
  • the scenario of determining whether the terminal is currently in the directional playback mode is specifically:
  • the mapping relationship between the preset scene type and the directional play mode it is determined whether the current scene of the terminal is a scene in which the directional play mode needs to be turned on.
  • the scenario of determining whether the terminal is currently in the directional playback mode is specifically:
  • the distance of the user from the terminal is within a set distance threshold range, the number of users is within a set number threshold range, and/or the ambient noise of the terminal is within a set noise threshold range, it indicates that the terminal is currently in need of opening orientation. Play mode scene.
  • the embodiment of the present invention further provides a terminal, where the terminal includes:
  • a location information obtaining module configured to: play a trigger instruction according to the audio signal, and acquire location information of the user relative to the terminal;
  • Selecting a calculation module configured to select a high frequency signal corresponding to the original audio signal to be played according to the location information, and calculate an output power and an output angle of the high frequency signal and the original audio signal;
  • the signal output module is configured to respectively output the high frequency signal and the original audio signal at a corresponding output power and an output angle, wherein the high frequency signal and the original audio signal are transmitted to the user direction, and are self-demodulated during the transmission process, so that The user can hear a clear original audio signal.
  • the location information obtaining module is specifically configured to: according to the received location selection instruction, select a location information from a preset plurality of location information, use the selected location as a location of the user relative to the terminal; or have a setting to acquire user image information, The location information of the user relative to the terminal is calculated based on the user image information.
  • the terminal further includes:
  • the scene judging module is configured to: according to the audio signal playing triggering instruction, determine whether the terminal is currently in a scene in which the directional playing mode needs to be turned on; and if the terminal is currently in a scene in which the directional playing mode needs to be turned on, generate a directional playing instruction;
  • the location information obtaining module is specifically configured to acquire location information of the user relative to the terminal according to the directed play instruction.
  • the scene judging module is specifically configured to determine a scene type in which the terminal is currently located; and determine, according to a mapping relationship between the preset scene type and the directional play mode, whether the scene currently located by the terminal is a scene in which the directional play mode needs to be turned on.
  • the scenario determining module is further configured to determine whether the distance between the user and the terminal is within a set distance threshold range, whether the number of users is within a set number threshold, and/or the ambient noise of the terminal is at a set noise threshold. Range; when the distance of the user from the terminal is within a set distance threshold range, the number of users is within a set number threshold range, and/or the ambient noise of the terminal is within a set noise threshold range, indicating that the terminal is currently in need Turn on the scene in directional playback mode.
  • the terminal provided by the embodiment of the present invention and the method for playing the audio signal by using the triggering instruction according to the audio signal to obtain the location information of the user relative to the terminal; and selecting the original audio signal to be played according to the location information a high frequency signal, and calculating an output power and an output angle of the high frequency signal, the original audio signal; respectively outputting the high frequency signal and the original audio signal at a corresponding output power and an output angle, the high frequency signal and the original audio
  • the signal is transmitted to the user and self-demodulated during transmission, so that the user can hear the clear original audio signal, and when the audio signal is played in public, the noise will not be disturbed to others when the earphone is not worn.
  • the content of the audio signal played at the same time is not known by others, effectively preventing the occurrence of leakage of the audio signal content, ensuring the security of the audio signal transmission, and greatly improving the user experience.
  • FIG. 1 is a schematic flow chart of an embodiment of a method for a terminal to play an audio signal according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of functional modules of an embodiment of a terminal according to the present invention.
  • FIG. 3 is a schematic diagram of functional modules of another embodiment of a terminal according to the present invention.
  • FIG. 1 is a schematic flowchart diagram of an embodiment of a method for a terminal to play an audio signal according to an embodiment of the present invention.
  • the method for the terminal to play the audio signal in orientation includes:
  • Step S10 The triggering instruction is played according to the audio signal, and the location information of the user relative to the terminal is obtained.
  • the location information of the user relative to the terminal refers to location information of the user's ear relative to the terminal.
  • the method for obtaining the location information of the user relative to the terminal in the step S10 includes two types, one of which is specifically: selecting a location information from the preset multiple location information according to the received location selection instruction, and using the selected location as the selected location.
  • the location of the user relative to the terminal includes: high, middle, and low. That is, the user's ear is in the high, middle, and low positions relative to the terminal. The user can select the relative terminal position of the user by operating the predefined physical button.
  • Another manner of obtaining the location information of the user relative to the terminal in the embodiment is specifically: acquiring user image information, and calculating location information of the user relative to the terminal according to the user image information.
  • the user image is acquired by the camera module, and the distance between the user image and the terminal is located by the light sensor, and finally the position information (including the orientation and the distance) of the user relative to the terminal is obtained.
  • Step S20 Select, according to the location information, a high frequency signal corresponding to the original audio signal to be played, and calculate an output power and an output angle of the high frequency signal and the original audio signal.
  • the output power of the high-frequency signal needs to satisfy the natural demodulation attenuation of the high-frequency signal during transmission to the user, and the demodulation attenuation is zero when the user position is reached.
  • the output power of the original audio signal needs to satisfy the natural demodulation attenuation during transmission to the user, and the user can hear the original audio signal at the user position.
  • Step S30 respectively outputting the high frequency signal and the original audio signal with corresponding output power and output angle, the high frequency signal and the original audio signal are transmitted to the user direction, and are self-demodulated during transmission, so that the user can hear Clear original audio signal.
  • the terminal is provided with a plurality of original audio signal speakers, and each of the original audio signal speakers is correspondingly provided with a high-frequency signal speaker, and audio signals of different original audio signal speakers have different output angles, and audio of each original audio signal speaker
  • the signal output angle is the same as the high frequency signal output angle of the corresponding high frequency signal speaker. That is, in the embodiment, the corresponding high-frequency signal speaker is selected according to the calculated output angle of the high-frequency signal, and the corresponding original audio signal speaker is selected according to the calculated original audio signal output angle.
  • the terminal triggers the generation of the audio signal playback trigger command at the initial moment of playing the audio signal, such as the initial moment of playing an audio signal such as music, the initial time of playing an audio and video signal such as a TV drama, and triggering the generation of the audio signal at the initial moment of the voice call. Play the trigger command.
  • the terminal in this embodiment may be a smart terminal such as a smart phone, a notebook computer, or a tablet computer.
  • the method before the acquiring the location information of the user relative to the terminal, the method further includes: performing a triggering instruction according to the audio signal, determining whether the terminal is currently in a scene in which the directional play mode needs to be started; In the case of a scene in which the directional play mode needs to be turned on, a directional play instruction is generated.
  • the scenario of determining whether the terminal is currently in the directional play mode is as follows: determining the type of the scene where the terminal is currently located; determining the current scene of the terminal according to the mapping relationship between the preset scene type and the directional play mode. Whether it is a scene where the directional play mode needs to be turned on.
  • the user can set the type of the scene in which the directional play mode needs to be opened according to the intention or the actual needs of the user.
  • the mapping relationship between the scene type and the directional play mode is preset in the embodiment, and after receiving the audio signal playback trigger command, first Determining the type of the scene in which the terminal is currently located, and then searching for the type of the scene from the mapping relationship. If the location is found, it indicates that the current scene of the terminal is a scene in which the directional play mode needs to be enabled.
  • the absolute geographic location information of the current time segment of the terminal may be obtained, and then the obtained absolute geographic location is compared with the electronic map, so that the current location of the terminal may be determined.
  • Speed the absolute geographical change speed of the current time period of the terminal determines the scene of the terminal, such as running, cycling, riding a car, train, airplane, and so on.
  • the current location of the terminal may be determined according to the telecommunication cell information or the WIFI broadcast information where the terminal is located.
  • the scenario of determining whether the terminal is currently in the directional playback mode may be implemented as follows: determining whether the distance between the user and the terminal is within a set distance threshold range, and whether the number of users is at a set number threshold. The range, and/or the ambient noise of the terminal is within a set noise threshold range; when the distance of the user from the terminal is within a set distance threshold range, the number of users is within a set number threshold range, and/or the ambient noise of the terminal Being in the set noise threshold range indicates that the terminal is currently in a scene in which the directional play mode needs to be turned on.
  • the mapping relationship between the distance threshold range of the user and the directional play mode, the mapping relationship between the threshold number range of the user and the directional play mode, and the mapping relationship between the ambient noise threshold range and the directional play mode of the terminal are set in advance.
  • the distance between the user and the terminal is within the distance threshold, the number of users is in the threshold of the number of users, and/or the ambient noise value of the terminal is in the ambient noise threshold, the terminal is currently in need of directional playback. Pattern of scenes.
  • the obtaining the location information of the user relative to the terminal in the embodiment is specifically: acquiring the location information of the user relative to the terminal according to the directed play instruction.
  • the user can perform directional playback by operating the predefined physical button.
  • the mode is enabled, once the directional play mode is enabled, the above steps S10 to S30 are sequentially executed once the audio signal playback trigger command is received, regardless of the current scene of the terminal.
  • the method for the directional display of the audio signal by the terminal obtains the position information of the user relative to the terminal by playing the trigger command according to the audio signal; and selecting the high frequency signal corresponding to the original audio signal to be played according to the position information. And calculating the output power and the output angle of the high frequency signal, the original audio signal; respectively outputting the high frequency signal and the original audio signal at a corresponding output power and an output angle, the high frequency signal and the original audio signal being sent to the user Direction transmission, self-demodulation during transmission, so that the user can hear the clear original audio signal, without playing the earphone, when playing the audio signal in public, it will not cause noise interference to others, and play at the same time.
  • the content of the audio signal is not known by others, effectively preventing the leakage of the audio signal content, ensuring the security of the audio signal transmission, and greatly improving the user experience.
  • FIG. 2 is a schematic diagram of functional modules of an embodiment of a terminal according to the present invention.
  • the terminal 100 includes: a location information acquiring module 110, a selection computing module 120, and a signal output module 130.
  • the location information acquiring module 110 is configured to acquire a location information of the user relative to the terminal according to the audio signal playing triggering instruction.
  • the selection calculation module 120 setting And selecting, according to the location information, a high frequency signal corresponding to the original audio signal to be played, and calculating an output power and an output angle of the high frequency signal, the original audio signal.
  • the signal output module 130 is configured to output the high frequency signal and the original audio signal respectively at a corresponding output power and an output angle, and the high frequency signal and the original audio signal are transmitted to the user direction, and are self-solved during the transmission process. Tune so that the user can hear the clear original audio signal.
  • the terminal 100 triggers the generation of an audio signal playback trigger command at the initial moment of playing the audio signal, such as an initial time of playing an audio signal such as music, an initial time of playing an audio and video signal such as a TV drama, and triggering the generation of audio at the initial moment of the voice call.
  • the signal plays a trigger command.
  • the terminal 100 in this embodiment may be a smart terminal such as a smart phone, a notebook computer, or a tablet computer.
  • the output power of the high-frequency signal needs to satisfy the natural demodulation attenuation of the high-frequency signal during transmission to the user, and the demodulation attenuation is zero when the user position is reached.
  • the output power of the original audio signal needs to satisfy the natural demodulation attenuation during transmission to the user, and the user can hear the original audio signal at the user position.
  • the terminal is provided with a plurality of original audio signal speakers, and each of the original audio signal speakers is correspondingly provided with a high-frequency signal speaker, and audio signals of different original audio signal speakers have different output angles, and audio of each original audio signal speaker
  • the signal output angle is the same as the high frequency signal output angle of the corresponding high frequency signal speaker. That is, in the embodiment, the corresponding high-frequency signal speaker is selected according to the calculated output angle of the high-frequency signal, and the corresponding original audio signal speaker is selected according to the calculated original audio signal output angle.
  • the location information of the user relative to the terminal in this embodiment refers to the location information of the user's ear relative to the terminal.
  • the manner in which the location information acquisition module 110 obtains the location information of the user relative to the terminal includes two types, one of which is specifically: selecting a location information from the preset multiple location information according to the received location selection instruction to the selected location.
  • the location of the user relative to the terminal That is, in the embodiment, the position information of the plurality of user ears relative to the terminal is preset, and when the audio signal playing trigger command is received, one position information is selected from the preset plurality of position information according to the position selection instruction input by the user in advance.
  • the selected location information is used as the location information of the user's ear relative to the terminal.
  • the location information as described above includes: high, middle, and low. That is, the user's ear is in the high, middle, and low positions relative to the terminal. The user can select the relative terminal position of the user by operating the predefined physical button.
  • the manner in which the location information acquisition module 110 obtains the location information of the user relative to the terminal is specifically: acquiring user image information, and calculating location information of the user relative to the terminal according to the user image information.
  • the user image is acquired by the camera module, and the distance between the user image and the terminal is located by the light sensor, and finally the position information (including the orientation and the distance) of the user relative to the terminal is obtained.
  • FIG. 3 is a schematic diagram of functional modules of another embodiment of a terminal according to the present invention.
  • the terminal 100 further includes: a scene determination module 140.
  • the scene determining module 140 is configured to determine, according to the audio signal playing triggering instruction, whether the terminal 100 is currently in a scene in which the directional playing mode needs to be turned on; and when the terminal 100 is currently in a scene in which the directional playing mode needs to be turned on, generating the orientation. Play the command.
  • the scene determining module 140 is specifically configured to determine the type of the scene in which the terminal 100 is currently located; and determine, according to the mapping relationship between the preset scene type and the directional playing mode, whether the current scene of the terminal 100 is a scene in which the directional playing mode needs to be enabled. .
  • the user can set the type of the scene in which the directional play mode needs to be opened according to the intention or the actual needs of the user.
  • the mapping relationship between the scene type and the directional play mode is preset in the embodiment, and after receiving the audio signal playback trigger command, first The scene type of the terminal 100 is determined, and then the scene type is searched for from the mapping relationship. If found, the current scene of the terminal 100 is a scene in which the directional play mode needs to be turned on.
  • the type of the scenario in which the terminal 100 is currently located can obtain the absolute geographic location information of the current time segment of the terminal 100, and then compare the obtained absolute geographic location with the electronic map, so that the current location of the terminal 100 can be determined.
  • Scenes such as cinemas, theaters, corporate conference rooms.
  • the scene of the terminal 100 according to the current time period moving speed of the terminal 100 (the absolute geographical position change speed of the current time period of the terminal 10)
  • the scene of the terminal 100 such as running, cycling, riding a car, a train, an airplane, etc.
  • the scenario in which the terminal 100 is currently located may be determined according to the telecommunication cell information or the WIFI broadcast information where the terminal 100 is located.
  • the scene determining module 140 in the foregoing embodiment determines whether the scenario in which the terminal 100 is currently in the directional playback mode is still implemented in the following manner: determining whether the distance between the user and the terminal 100 is within a set distance threshold range, and the number of users Whether it is in the set number threshold range, and/or the ambient noise in which the terminal 100 is located is in the set noise threshold range; when the distance of the user from the terminal 100 is within the set distance threshold range, the number of users is in the set number threshold range And/or the ambient noise in which the terminal 100 is located is in a set noise threshold range, indicating that the terminal 100 is currently in a scene in which the directional play mode needs to be turned on.
  • the mapping relationship between the distance threshold range of the user and the terminal 100 and the directional play mode, the mapping relationship between the threshold number range of the user and the directional play mode, and the ambient noise threshold range and the directional play mode of the terminal 100 are preset. Mapping relations. When the distance of the user from the terminal 100 is within the distance threshold, the number of users is in the threshold of the number of users, and/or the ambient noise value of the terminal 100 is in the ambient noise threshold, the terminal 100 is currently in need. Turn on the scene in directional playback mode.
  • the location information obtaining module 110 in this embodiment is specifically configured to acquire location information of the user relative to the terminal 100 according to the directed play instruction.
  • the user may perform operations on the predefined physical buttons.
  • the directional play mode is enabled, once the directional play mode is enabled, regardless of the current scene of the terminal 100, once the audio signal play trigger command is received, the position information acquisition module 110, the selection calculation module 120, and the signal output module 130 are sequentially executed. Their respective operations.
  • the terminal 100 acquires location information of the user relative to the terminal by playing a trigger command according to the audio signal, and selects a high frequency signal corresponding to the original audio signal to be played according to the location information, and calculates the a high frequency signal, an output power of the original audio signal, and an output angle; respectively outputting the high frequency signal and the original audio signal at a corresponding output power and an output angle, the high frequency signal and the original audio signal being transmitted to the user, and Self-demodulation during transmission, so that users can hear clear original audio signals. Without wearing headphones, when playing audio signals in public, there will be no noise interference to others, and the audio signal content will not be played. Known by others, it effectively prevents the leakage of audio signal content, ensures the security of audio signal transmission, and greatly improves the user experience.
  • a terminal and a method for directionally playing an audio signal have the following beneficial effects: obtaining a position information of a user relative to a terminal by playing a trigger instruction according to an audio signal; and selecting according to the location information And carrying the high frequency signal corresponding to the original audio signal to be played, and calculating the output power and the output angle of the high frequency signal and the original audio signal; respectively outputting the high frequency signal and the original audio with corresponding output power and output angle
  • the signal, the high-frequency signal and the original audio signal are transmitted to the user, and self-demodulate during transmission, so that the user can hear the clear original audio signal, and play the audio in public without wearing the earphone.
  • the signal will not cause noise interference to others, and the content of the played audio signal will not be known by others, effectively preventing the leakage of the audio signal content, ensuring the security of the audio signal transmission, and greatly improving the user experience.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé permettant de lire un signal audio de manière directionnelle par un terminal. Le procédé consiste à : acquérir des informations relatives à une position d'un utilisateur par rapport à un terminal selon une instruction de déclenchement de lecture de signaux audio ; sélectionner, selon les informations de position, un signal haute fréquence correspondant utilisé pour acheminer un signal audio d'origine à lire, et calculer une puissance de sortie et des angles de sortie du signal haute fréquence et du signal audio d'origine ; et délivrer séparément en sortie le signal haute fréquence et le signal audio d'origine à la puissance de sortie et aux angles de sortie correspondants, le signal haute fréquence et le signal audio d'origine étant transmis vers une direction de l'utilisateur et étant auto-démodulés dans un processus de transmission, de sorte que l'utilisateur peut entendre le signal audio d'origine de manière claire. L'invention concerne en outre un terminal. Selon le terminal et le procédé qui sont fournis dans la présente invention, dans un cas où l'utilisateur ne porte pas d'écouteurs, lorsqu'un signal audio est lu en public, une interférence de bruit n'est pas générée pour d'autres personnes, et le contenu du signal audio lu ne peut pas être connu par d'autres, ce qui empêche efficacement l'apparition d'une fuite du contenu du signal audio, assure la sécurité de transmission du signal audio, et améliore considérablement l'expérience de l'utilisateur.
PCT/CN2015/083793 2015-02-03 2015-07-10 Terminal et procédé permettant de lire un signal audio de manière directionnelle par ledit terminal WO2016123901A1 (fr)

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CN201510057345.5A CN105992099A (zh) 2015-02-03 2015-02-03 终端及其定向播放音频信号的方法
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