WO2016123901A1 - 终端及其定向播放音频信号的方法 - Google Patents
终端及其定向播放音频信号的方法 Download PDFInfo
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- 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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- 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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Abstract
本发明公开了一种终端定向播放音频信号的方法，方法：根据音频信号播放触发指令，获取用户相对终端的位置信息；根据位置信息选择用以承载待播放的原音频信号相应的高频信号，计算高频信号、原音频信号的输出功率和输出角度；以相应的输出功率和输出角度分别输出高频信号和原音频信号，高频信号和原音频信号向用户方向传输，在传输过程中自解调，使用户可听见清晰的原音频信号。本发明还公开了一种终端。本发明所提供的终端及方法，在不佩戴耳机的情况下，在公共场合播放音频信号时不会对他人产生噪音干扰，同时播放的音频信号内容不会被他人知晓，有效地防止了音频信号内容泄露的发生，保证了音频信号传输的安全性，大大提高了用户的体验效果。
Description
本发明涉及音频信息技术领域，尤其涉及终端及其定向播放音频信号的方法。
现有的音频电子设备通常采用电动式扬声器，即利用磁场对载流导体的作用实现电声换能，如动圈式扬声器。这种传统的设计方式在用户收听节目时，由于音频电子设备的声场是向空间各个方向传播的，整个播音环境都充满声音，所以指向性差，外放的范围不受控。现有的这种音频电子设备应用在共场合存在干扰他人、无法实现音频信号内容保密的缺陷。
为了克服上述缺陷，在公共场合用户一般通过佩戴有线或无线蓝牙耳机的方式收听音频电子设备播放的音频信号。然而佩戴耳机收听音频信号存在诸多不便，同时有损健康，用户体验效果差。
发明内容
本发明实施例至少解决用户在不佩戴耳机的情况下实现在公共场合播放音频信号时不干扰他人，以及播放的音频信号内容不被泄露的技术问题。
为至少实现上述目的，本发明实施例提供的一种终端定向播放音频信号的方法，所述终端定向播放音频信号的方法包括以下步骤：
根据音频信号播放触发指令，获取用户相对终端的位置信息；
根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；
以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号。
所述获取用户相对终端的位置信息具体包括：
根据接收的位置选择指令，从预设的多个位置信息选择一个位置信息，以所选位置作为用户相对终端的位置；
或者具体包括：获取用户图像信息，根据用户图像信息计算用户相对于终端的位置信息。
所述获取用户相对终端的位置信息之前还包括：
根据音频信号播放触发指令，判断终端当前是否处于需要开启定向播放模式的场景；
在终端当前处于需要开启定向播放模式的场景的情况下，生成定向播放指令；
所述获取用户相对终端的位置信息具体为：
根据所述定向播放指令，获取用户相对终端的位置信息。
所述判断终端当前是否处于需要开启定向播放模式的场景具体为：
判断终端当前所处的场景类型；
根据预设的场景类型与定向播放模式的映射关系，确定终端当前所处场景是否为需要开启定向播放模式的场景。
所述判断终端当前是否处于需要开启定向播放模式的场景具体为：
判断用户相对终端的距离是否处于设定的距离阈值范围、用户人数是否处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围；
当用户相对终端的距离处于设定的距离阈值范围、用户人数处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围，则表明所述终端当前处于需要开启定向播放模式的场景。
此外，为至少实现上述目的，本发明实施例还提供一种终端，所述终端包括：
位置信息获取模块，设置为根据音频信号播放触发指令，获取用户相对终端的位置信息；
选择计算模块，设置为根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；
信号输出模块，设置为以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号。
所述位置信息获取模块，具体设置为根据接收的位置选择指令，从预设的多个位置信息选择一个位置信息，以所选位置作为用户相对终端的位置；或者具有设置为获取用户图像信息，根据用户图像信息计算用户相对于终端的位置信息。
所述终端还包括：
场景判断模块，设置为根据音频信号播放触发指令，判断终端当前是否处于需要开启定向播放模式的场景；在终端当前处于需要开启定向播放模式的场景的情况下，生成定向播放指令；
所述位置信息获取模块，具体设置为根据所述定向播放指令，获取用户相对终端的位置信息。
所述场景判断模块，具体设置为判断终端当前所处的场景类型；根据预设的场景类型与定向播放模式的映射关系，确定终端当前所处场景是否为需要开启定向播放模式的场景。
所述场景判断模块，具体还设置为判断用户相对终端的距离是否处于设定的距离阈值范围、用户人数是否处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围；当用户相对终端的距离处于设定的距离阈值范围、用户人数处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围，则表明所述终端当前处于需要开启定向播放模式的场景。
本发明实施例所提供的终端及其定向播放音频信号的方法，通过根据音频信号播放触发指令，获取用户相对终端的位置信息；根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号的方式，在不佩戴耳机的情况下，在公共场合播放音频信号时不会对他人产生噪音干扰，同时播放的音频信号内容不会被他人知晓，有效地防止了音频信号内容泄露的发生，保证了音频信号传输的安全性，大大提高了用户的体验效果。
图1为本发明的终端定向播放音频信号的方法一实施例的流程示意图；
图2为本发明的终端一实施例的功能模块示意图；
图3为本发明的终端另一实施例的功能模块示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明实施例提供一种终端定向播放音频信号的方法。参照图1，图1为本发明的终端定向播放音频信号的方法一实施例的流程示意图。在该实施例中，所述终端定向播放音频信号的方法包括：
步骤S10、根据音频信号播放触发指令，获取用户相对终端的位置信息。
本实施例，所述用户相对终端的位置信息是指用户耳朵相对终端的位置信息。本步骤S10中所述获取用户相对终端的位置信息的方式包括两种，其中一种具体为：根据接收的位置选择指令，从预设的多个位置信息选择一个位置信息，以所选位置作为用户相对终端的位置。即本实施例中预先设置有多个用户耳朵相对终端的位置信息，在接收到音频信号播放触发指令时，根据用户预先输入的位置选择指令，从预设的多个位置信息中选择一个位置信息，以所选位置信息作为用户耳朵相对终端的位置信息。如上述位置信息包括：高位、中位、低位。即用户耳朵相对终端处于高位、中位、低位。用户可以通过对预先定义好的实体按键进行操作，实现对用户相对终端位置的选择。
本实施例中所述获取用户相对终端的位置信息的另一种方式具体为：获取用户图像信息，根据用户图像信息计算用户相对于终端的位置信息。具体地通过摄像模块获取用户图像，并通过光线传感器定位用户图像相对终端的距离，最终获得用户相对终端的位置信息(包括方位和距离)。
步骤S20、根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度。
本实施例中所述高频信号的输出功率的大小需要满足高频信号在向用户方向传输过程中自然解调衰减，到达用户位置处解调衰减为零。而所述原音频信号的输出功率的大小需要满足在向用户方向传输过程中自然解调衰减，到达用户位置处用户可听见清晰的原音频信号。
步骤S30、以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号。
本实施例中所述终端设置有多个原音频信号扬声器，每个原音频信号扬声器对应设置一个高频信号扬声器，不同原音频信号扬声器的音频信号输出角度不同，每个原音频信号扬声器的音频信号输出角度与对应的高频信号扬声器的高频信号输出角度相同。即本实施例中根据计算出的高频信号的输出角度选择相应的高频信号扬声器，根据计算出原音频信号输出角度选择相应的原音频信号扬声器。
本实施例中，终端在播放音频信号初始时刻会触发生成音频信号播放触发指令，如在播放音乐等音频信号初始时刻、播放电视剧等音视频信号初始时刻，以及在语音通话初始时刻触发生成音频信号播放触发指令。本实施例中的终端可以是智能手机、笔记本电脑、平板电脑等智能终端。
上述终端定向播放音频信号的方法实施例中，在所述获取用户相对终端的位置信息之前还包括如下处理：根据音频信号播放触发指令，判断终端当前是否处于需要开启定向播放模式的场景；在终端当前处于需要开启定向播放模式的场景的情况下，生成定向播放指令。
本实施例中所述判断终端当前是否处于需要开启定向播放模式的场景具体为：判断终端当前所处的场景类型；根据预设的场景类型与定向播放模式的映射关系，确定终端当前所处场景是否为需要开启定向播放模式的场景。
本实施例中用户可以根据自身意愿或实际需要设置需要开启定向播放模式的场景种类，即本实施例中预先设置有场景种类与定向播放模式映射关系，在接收到音频信号播放触发指令后，首先判断终端当前所处场景类型，然后从所述映射关系中查找所处场景类型，若查找到，则表明终端当前所处场景为需要开启定向播放模式的场景。
本实施例中判断终端当前所处的场景类型可以获取终端当前时间段所处的绝对地理位置信息，然后将获取的所述绝对地理位置与电子地图对比，从而可以判断出终端当前所处场景，如电影院、剧院、公司会议室。同时还可以根据终端当前时间段移动
速度(终端当前时间段所处绝对地理位置变化速度)判断终端的所处场景，如跑步、骑车，乘坐汽车、火车、飞机等。另外还可以根据终端所处的电信小区信息或WIFI广播信息判断终端当前所处场景。
本实施例中，所述判断终端当前是否处于需要开启定向播放模式的场景还可以采用如下方式实现：判断用户相对终端的距离是否处于设定的距离阈值范围、用户人数是否处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围；当用户相对终端的距离处于设定的距离阈值范围、用户人数处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围，则表明所述终端当前处于需要开启定向播放模式的场景。即本实施例中预先设置有用户相对终端的距离阈值范围与定向播放模式的映射关系，用户人数阈值范围与定向播放模式的映射关系，以及终端所处环境噪声阈值范围与定向播放模式的映射关系。当用户相对终端的距离处于所述距离阈值范围内、用户人数处于所述用户人数阈值范围、和/或终端所处环境噪声值处于所述环境噪声阈值范围，则表明终端当前处于需要开启定向播放模式的场景。
本实施例中所述获取用户相对终端的位置信息具体为：根据所述定向播放指令，获取用户相对终端的位置信息。
另外，本实施例中当终端当前所处场景不属于需要开启定向播放模式的场景，但用户当前想要终端开启定向播放模式时，用户可以通过对预先定义好的实体按键进行操作，实现定向播放模式的开启，一旦开启了定向播放模式，不论终端当前处于何种场景，一旦接收到音频信号播放触发指令，均依次执行上述步骤S10至步骤S30。
上述实施例所提供的终端定向播放音频信号的方法，通过根据音频信号播放触发指令，获取用户相对终端的位置信息；根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号的方式，在不佩戴耳机的情况下，在公共场合播放音频信号时不会对他人产生噪音干扰，同时播放的音频信号内容不会被他人知晓，有效地防止了音频信号内容泄露的发生，保证了音频信号传输的安全性，大大提高了用户的体验效果。
本发明实施例进一步提供一种终端。参照图2，图2为本发明的终端一实施例的功能模块示意图。在该实施例中，所述终端100包括：位置信息获取模块110、选择计算模块120、信号输出模块130。其中，所述位置信息获取模块110，设置为根据音频信号播放触发指令，获取用户相对终端的位置信息。所述选择计算模块120，设置
为根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度。所述信号输出模块130，设置为以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号。
本实施例中，终端100在播放音频信号初始时刻会触发生成音频信号播放触发指令，如在播放音乐等音频信号初始时刻、播放电视剧等音视频信号初始时刻，以及在语音通话初始时刻触发生成音频信号播放触发指令。本实施例中的终端100可以是智能手机、笔记本电脑、平板电脑等智能终端。
本实施例中所述高频信号的输出功率的大小需要满足高频信号在向用户方向传输过程中自然解调衰减，到达用户位置处解调衰减为零。而所述原音频信号的输出功率的大小需要满足在向用户方向传输过程中自然解调衰减，到达用户位置处用户可听见清晰的原音频信号。
本实施例中所述终端设置有多个原音频信号扬声器，每个原音频信号扬声器对应设置一个高频信号扬声器，不同原音频信号扬声器的音频信号输出角度不同，每个原音频信号扬声器的音频信号输出角度与对应的高频信号扬声器的高频信号输出角度相同。即本实施例中根据计算出的高频信号的输出角度选择相应的高频信号扬声器，根据计算出原音频信号输出角度选择相应的原音频信号扬声器。
本实施例所述用户相对终端的位置信息是指用户耳朵相对终端的位置信息。所述位置信息获取模块110获取用户相对终端的位置信息的方式包括两种，其中一种具体为：根据接收的位置选择指令，从预设的多个位置信息选择一个位置信息，以所选位置作为用户相对终端的位置。即本实施例中预先设置有多个用户耳朵相对终端的位置信息，在接收到音频信号播放触发指令时，根据用户预先输入的位置选择指令，从预设的多个位置信息中选择一个位置信息，以所选位置信息作为用户耳朵相对终端的位置信息。如上述位置信息包括：高位、中位、低位。即用户耳朵相对终端处于高位、中位、低位。用户可以通过对预先定义好的实体按键进行操作，实现对用户相对终端位置的选择。
所述位置信息获取模块110获取用户相对终端的位置信息的另一种方式具体为：获取用户图像信息，根据用户图像信息计算用户相对于终端的位置信息。具体地通过摄像模块获取用户图像，并通过光线传感器定位用户图像相对终端的距离，最终获得用户相对终端的位置信息(包括方位和距离)。
参见图3，图3为本发明的终端另一实施例的功能模块示意图。本实施例中，所述终端100还包括：场景判断模块140。其中，所述场景判断模块140，设置为根据音频信号播放触发指令，判断终端100当前是否处于需要开启定向播放模式的场景；在终端100当前处于需要开启定向播放模式的场景的情况下，生成定向播放指令。所述场景判断模块140，具体设置为判断终端100当前所处的场景类型；根据预设的场景类型与定向播放模式的映射关系，确定终端100当前所处场景是否为需要开启定向播放模式的场景。
本实施例中用户可以根据自身意愿或实际需要设置需要开启定向播放模式的场景种类，即本实施例中预先设置有场景种类与定向播放模式映射关系，在接收到音频信号播放触发指令后，首先判断终端100当前所处场景类型，然后从所述映射关系中查找所处场景类型，若查找到，则表明终端100当前所处场景为需要开启定向播放模式的场景。
本实施例中判断终端100当前所处的场景类型可以获取终端100当前时间段所处的绝对地理位置信息，然后将获取的所述绝对地理位置与电子地图对比，从而可以判断出终端100当前所处场景，如电影院、剧院、公司会议室。同时还可以根据终端100当前时间段移动速度(终端10当前时间段所处绝对地理位置变化速度)判断终端100的所处场景，如跑步、骑车，乘坐汽车、火车、飞机等。另外还可以根据终端100所处的电信小区信息或WIFI广播信息判断终端100当前所处场景。
另外，上述实施例中所述场景判断模块140判断终端100当前是否处于需要开启定向播放模式的场景还可以采用如下方式实现：判断用户相对终端100的距离是否处于设定的距离阈值范围、用户人数是否处于设定的人数阈值范围、和/或终端100所处环境噪声处于设定的噪音阈值范围；当用户相对终端100的距离处于设定的距离阈值范围、用户人数处于设定的人数阈值范围、和/或终端100所处环境噪声处于设定的噪音阈值范围，则表明所述终端100当前处于需要开启定向播放模式的场景。即本实施例中预先设置有用户相对终端100的距离阈值范围与定向播放模式的映射关系，用户人数阈值范围与定向播放模式的映射关系，以及终端100所处环境噪声阈值范围与定向播放模式的映射关系。当用户相对终端100的距离处于所述距离阈值范围内、用户人数处于所述用户人数阈值范围、和/或终端100所处环境噪声值处于所述环境噪声阈值范围，则表明终端100当前处于需要开启定向播放模式的场景。
本实施例中所述位置信息获取模块110，具体设置为根据所述定向播放指令，获取用户相对终端100的位置信息。
另外，本实施例中当终端100当前所处场景不属于需要开启定向播放模式的场景，但用户当前想要终端100开启定向播放模式时，用户可以通过对预先定义好的实体按键进行操作，实现定向播放模式的开启，一旦开启了定向播放模式，不论终端100当前处于何种场景，一旦接收到音频信号播放触发指令，均依次调用位置信息获取模块110、选择计算模块120、信号输出模块130执行各自相应的操作。
上述实施例所提供的终端100，通过根据音频信号播放触发指令，获取用户相对终端的位置信息；根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号的方式，在不佩戴耳机的情况下，在公共场合播放音频信号时不会对他人产生噪音干扰，同时播放的音频信号内容不会被他人知晓，有效地防止了音频信号内容泄露的发生，保证了音频信号传输的安全性，大大提高了用户的体验效果。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
如上所述，本发明实施例提供的一种终端及其定向播放音频信号的方法，具有以下有益效果：通过根据音频信号播放触发指令，获取用户相对终端的位置信息；根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号的方式，在不佩戴耳机的情况下，在公共场合播放音频信号时不会对他人产生噪音干扰，同时播放的音频信号内容不会被他人知晓，有效地防止了音频信号内容泄露的发生，保证了音频信号传输的安全性，大大提高了用户的体验效果。
Claims (10)
- 一种终端定向播放音频信号的方法，所述终端定向播放音频信号的方法包括以下步骤：根据音频信号播放触发指令，获取用户相对终端的位置信息；根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号。
- 如权利要求1所述的终端定向播放音频信号的方法，其中，所述获取用户相对终端的位置信息具体包括：根据接收的位置选择指令，从预设的多个位置信息选择一个位置信息，以所选位置作为用户相对终端的位置；或者具体包括：获取用户图像信息，根据用户图像信息计算用户相对于终端的位置信息。
- 如权利要求1所述的终端定向播放音频信号的方法，其中，所述获取用户相对终端的位置信息之前还包括：根据音频信号播放触发指令，判断终端当前是否处于需要开启定向播放模式的场景；在终端当前处于需要开启定向播放模式的场景的情况下，生成定向播放指令；所述获取用户相对终端的位置信息具体为：根据所述定向播放指令，获取用户相对终端的位置信息。
- 如权利要求3所述的终端定向播放音频信号的方法，其中，所述判断终端当前是否处于需要开启定向播放模式的场景具体为：判断终端当前所处的场景类型；根据预设的场景类型与定向播放模式的映射关系，确定终端当前所处场景是否为需要开启定向播放模式的场景。
- 如权利要求3所述的终端定向播放音频信号的方法，其中，所述判断终端当前是否处于需要开启定向播放模式的场景具体为：判断用户相对终端的距离是否处于设定的距离阈值范围、用户人数是否处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围；当用户相对终端的距离处于设定的距离阈值范围、用户人数处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围，则表明所述终端当前处于需要开启定向播放模式的场景。
- 一种终端，所述终端包括：位置信息获取模块，设置为根据音频信号播放触发指令，获取用户相对终端的位置信息；选择计算模块，设置为根据所述位置信息选择用以承载待播放的原音频信号相应的高频信号，并计算所述高频信号、原音频信号的输出功率和输出角度；信号输出模块，设置为以相应的输出功率和输出角度分别输出所述高频信号和原音频信号，所述高频信号和原音频信号向用户方向传输，并在传输过程中自解调，使用户可听见清晰的原音频信号。
- 如权利要求6所述的终端，其中，所述位置信息获取模块，具体设置为根据接收的位置选择指令，从预设的多个位置信息选择一个位置信息，以所选位置作为用户相对终端的位置；或者具有设置为获取用户图像信息，根据用户图像信息计算用户相对于终端的位置信息。
- 如权利要求6所述的终端，其中，所述终端还包括：场景判断模块，设置为根据音频信号播放触发指令，判断终端当前是否处于需要开启定向播放模式的场景；在终端当前处于需要开启定向播放模式的场景的情况下，生成定向播放指令；所述位置信息获取模块，具体设置为根据所述定向播放指令，获取用户相对终端的位置信息。
- 如权利要求8所述的终端，其中，所述场景判断模块，具体设置为判断终端当前所处的场景类型；根据预设的场景类型与定向播放模式的映射关系，确定终端当前所处场景是否为需要开启定向播放模式的场景。
- 如权利要求8所述的终端，其中，所述场景判断模块，具体还设置为判断用户相对终端的距离是否处于设定的距离阈值范围、用户人数是否处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围；当用户相对终端的距离处于设定的距离阈值范围、用户人数处于设定的人数阈值范围、和/或终端所处环境噪声处于设定的噪音阈值范围，则表明所述终端当前处于需要开启定向播放模式的场景。
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| CN107644603B (zh) * | 2017-10-19 | 2020-11-20 | 京东方科技集团股份有限公司 | 双视显示装置及其驱动方法 |
| CN110517711A (zh) * | 2018-05-21 | 2019-11-29 | Oppo广东移动通信有限公司 | 音频的播放方法、装置、存储介质及电子设备 |
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