WO2016000297A1 - 音频的调节方法及装置 - Google Patents

音频的调节方法及装置 Download PDF

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Publication number
WO2016000297A1
WO2016000297A1 PCT/CN2014/084432 CN2014084432W WO2016000297A1 WO 2016000297 A1 WO2016000297 A1 WO 2016000297A1 CN 2014084432 W CN2014084432 W CN 2014084432W WO 2016000297 A1 WO2016000297 A1 WO 2016000297A1
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WO
WIPO (PCT)
Prior art keywords
audio
terminal
distance
user
present
Prior art date
Application number
PCT/CN2014/084432
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English (en)
French (fr)
Inventor
薛华
王进军
孙焘
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016000297A1 publication Critical patent/WO2016000297A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers

Definitions

  • the present invention relates to the field of communications, and in particular to an audio adjustment method and apparatus.
  • Voice call is a basic function of mobile terminals, and the improvement of voice call quality is an important issue.
  • the low-frequency sound is the fundamental sound. If the sound pressure value of the low-frequency sound is not enough, the sound is simple and lacks strength. This part has a great influence on the hearing. For the mid-range sound, it is the most sensitive area of the human ear. Appropriate promotion enhances the sense of presence of the playback, which is conducive to improving the clarity and layering.
  • the enhancement of high-frequency sounds makes the sounds vivid and lively.
  • the voice call will have an earpiece and hands-free mode.
  • the distance between the mobile terminal and the human mouth is not the same when each user is in use, and now the debugging and calibration of the voice call quality are performed by placing the mobile terminal in a fixed position, and the difference affects The effect of voice quality. Because the distance and the loudness of the mobile terminal relative to the human mouth change as the distance from the mobile terminal to the human mouth changes.
  • a terminal including: a range finder configured to detect a distance between a terminal and a user; a receiver configured to receive audio of a peer user; and a transmitter configured to collect and transmit the terminal The audio of the end user; the processor, coupled to the receiver and the transmitter, configured to adjust the received and/or transmitted audio based on the distance of the terminal from the user.
  • the range finder is placed close to the transmitter.
  • the range finder is multiple, and the plurality of range finder are distributed on the terminal.
  • the processor is further configured to determine a distance between the terminal and the user according to the plurality of distances detected by the plurality of range finder.
  • the audio parameters are used to adjust the frequency response of the audio.
  • a terminal including: a range finder configured to detect a distance between a terminal and a user; a receiver configured to receive audio of a peer user; and a transmitter configured to collect and transmit The audio of the local user; the plurality of audio filters, wherein the plurality of audio filters correspond to the plurality of sets of audio parameters; the first decider is configured to determine the frequency of the received and/or transmitted audio according to the distance between the terminal and the user. response.
  • the range finder is placed adjacent to the transmitter.
  • the range finder is multiple, and the plurality of range finder are distributed on the terminal.
  • the terminal further includes: a second decider configured to determine a distance between the terminal and the user according to the plurality of distances detected by the plurality of range finder.
  • the audio parameters are used to adjust the frequency response of the audio.
  • a terminal having a range finder includes: a receiver configured to receive audio of a peer user; a transmitter configured to collect and transmit audio of the local user; And connected to the receiver and the transmitter, and configured to adjust the received and/or transmitted audio according to the distance between the user and the terminal measured by the range finder.
  • the range finder is located close to the transmitter.
  • the range finder is multiple, and the plurality of range finder are distributed on the terminal.
  • a device for connecting a terminal including: a main body, configured to be detachably connected to the terminal; and a distance measuring device disposed on the main body, configured to detect a distance between the terminal and the user;
  • the communication interface is disposed on the main body and connected to the range finder, and is configured to transmit the distance measured by the range finder to the terminal.
  • the range finder is disposed at a position of the transmitter close to the terminal when the main body is connected to the terminal, wherein the transmitter is configured to collect and transmit the audio of the local user.
  • an audio adjustment method including: acquiring a distance between a terminal and a user; and adjusting audio received and/or transmitted by the terminal according to a distance between the terminal and the user.
  • adjusting the audio of the sound source object received by the terminal according to the distance between the terminal and the user including: searching for an audio parameter corresponding to the distance between the terminal and the user; and adjusting, according to the found audio parameter, the terminal received and/or sent Audio.
  • each range of distances corresponds to a set of audio parameters, wherein the range of distances includes at least one distance, and the set of audio parameters includes at least one audio parameter.
  • the method before acquiring the distance between the terminal and the sound source object, the method further includes: determining whether the terminal is in a hands-free state; and detecting a distance between the terminal and the user when the terminal is in the hands-free state.
  • adjusting the audio according to the audio parameter comprises: setting an audio filter according to the audio parameter to adjust the audio.
  • the audio parameters are used to adjust the frequency response of the audio.
  • an audio adjustment apparatus including: an acquisition module configured to acquire a distance between a terminal and a user; and an adjustment module configured to adjust a terminal received according to a distance between the terminal and the user and/or Or and or send audio.
  • the adjusting module includes: a searching unit, configured to search for an audio parameter corresponding to the distance, where the audio parameter is used to adjust a frequency response of the audio; and an adjusting unit is configured to adjust according to the audio parameter The audio.
  • each range of distances corresponds to a set of audio parameters, wherein the range of distances includes at least one distance, and the set of audio parameters includes at least one audio parameter.
  • the device further includes: a determining module, configured to determine whether the terminal is in a hands-free state before acquiring the distance; and a detecting module configured to detect a distance between the terminal and the user when the terminal is in a hands-free state.
  • an adjustment module is configured to set an audio filter according to the audio parameter to adjust the audio.
  • the distance between the terminal and the sound source object is obtained, and the audio received and/or transmitted by the terminal is adjusted according to the distance between the terminal and the user, so that the audio is adjusted according to the distance between the terminal and the user, thereby improving the audio.
  • FIG. 2 is a block diagram 2 of a terminal according to an embodiment of the present invention
  • FIG. 3 is a terminal having a range finder according to an embodiment of the present invention
  • 4 is a structural block diagram of an apparatus for connecting terminals according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for adjusting audio according to an embodiment of the present invention
  • FIG. 6 is an audio according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of an optional method for adjusting audio according to an embodiment of the present invention
  • FIG. 8 is a comparison diagram 1 according to an embodiment of the present invention
  • FIG. 9 is a comparison diagram according to an embodiment of the present invention.
  • the terminal may be a plurality of types of terminals, such as a mobile phone, a tablet, a personal digital assistant (PDA), a recording device, etc., but is not limited thereto.
  • PDA personal digital assistant
  • the operating system can be run on the terminal, and the operating system is various, for example, Windows, Android (Android), Apple's operating system (iOS), and a dedicated embedded system, but is not limited thereto.
  • “received audio” generally refers to audio received from other devices, for example, audio at the opposite end of the call
  • transmitted audio generally refers to audio collected by the transmitter to be sent to other devices.
  • the audio sent to the peer during a call For example, embodiments of the present invention are not limited thereto.
  • it may also be used as "received audio".
  • a local audio recording is common.
  • the received audio refers to the audio to be played, and the audio collected when the audio is sent.
  • 1 is a block diagram of a structure of a terminal according to an embodiment of the present invention.
  • the terminal includes: a range finder 102 configured to detect a distance between the terminal and the user; and a receiver 104 configured to receive audio of the opposite user.
  • the transmitter 106 is configured to collect and transmit audio of the local user; the processor 108 is connected to the receiver 104 and/or the transmitter 106, and is configured to adjust the received and/or transmitted according to the distance between the terminal and the user. Audio.
  • the range finder 102 can be placed adjacent to the transmitter 106.
  • the range finder 102 may be multiple, and the plurality of range finder 102 are distributed on the terminal.
  • the processor 106 is further configured to determine the distance of the terminal from the user according to the plurality of distances detected by the plurality of range finder 102.
  • the range finder 102 may employ infrared technology or ultrasonic technology, but is not limited thereto.
  • Transmitter 106 can be a microphone.
  • the ultrasonic transmitter emits ultrasonic waves, and starts timing at the same time as the transmission, the ultrasonic waves propagate in the air, and return when the user (generally the user's face) is encountered, and the ultrasonic receiver receives the reflected wave and immediately interrupts the stop timing.
  • the processor 108 may be a processor dedicated to adjusting audio, or may be a central processing unit in the terminal.
  • a plurality of distance ranges may be set in advance, and a set of audio parameters are set for each distance range.
  • the audio parameter corresponding to the current distance of the terminal and the sound source object may be searched, and the audio of the sound source object received by the terminal is adjusted according to the audio parameter.
  • the correspondence between the above distance and the audio parameters can be obtained according to experimental measurements.
  • the audio parameter is a parameter that adjusts the frequency response of the audio.
  • multiple policies may be set, and different audio parameters are used at the same distance under different policies. For example, for high-quality audio requirements, high-precision audio parameters are used, and audio requirements are not high. Use less accurate audio parameters.
  • the range finder 102 can also be turned on or off, for example, in response to a user's operation when the terminal is in the hands-free mode, or the range finder 102 is automatically turned on.
  • the above hands-free mode does not specifically refer to the hands-free mode in voice calls.
  • the prompt information may be displayed on the display interface of the terminal, prompting to turn the range finder 102 on or off.
  • the range finder 102 is automatically turned on, and when the hands-free mode is detected to be turned off, the range finder 102 is automatically turned off.
  • the terminal may include: a range finder 202 configured to detect a distance between the terminal and the user; and a transmitter 204 configured to collect and transmit audio; a plurality of audio filters 206, wherein the plurality of audio filters correspond to the plurality of sets of audio parameters; and the first decider 208 is configured to determine an audio filter that processes the received and/or transmitted audio according to the distance between the terminal and the user.
  • the plurality of audio filters 206 may be a plurality of audio filter circuits, or may be an audio filter that can implement various audio filters.
  • the first decider 208 described above may be a processor that can execute the above-mentioned decision logic.
  • the first decider 208 may also be a digital circuit that can execute the above-described determination logic, but is not limited thereto.
  • the range finder 202 can be placed adjacent to the transmitter.
  • the terminal may further include: a second decider configured to determine a distance of the terminal from the user according to the plurality of distances detected by the plurality of range finder 202.
  • the description of the terminal shown in FIG. 1 is the same as that of the terminal in FIG. 1 , and details are not described herein again.
  • the terminal may include: a receiver 302 configured to receive audio of a peer user; and a transmitter 304 configured to collect and The audio of the local user is sent; the processor 306 is connected to the receiver and the transmitter, and is configured to adjust the received and/or transmitted audio according to the distance between the user and the terminal measured by the range finder.
  • the range finder may be located proximate to the transmitter 304.
  • the range finder is multiple, and the plurality of range finder are distributed on the terminal.
  • the processor 306 is further configured to determine a distance between the terminal and the user according to the plurality of distances detected by the plurality of range finder.
  • the range finder in the embodiment of the present invention may be detachably connected to the terminal, for example, through the USB interface of the terminal, and the audio output interface is equal to the terminal connection.
  • the description of the terminal shown in FIG. 1 or FIG. 2 is the same as the description of the terminal in FIG. 1 or FIG. 2, and details are not described herein again.
  • the apparatus may include: a main body 402 configured to be detachably connected to the terminal; and a range finder 404 disposed on the main body 402.
  • the upper interface is configured to detect the distance between the terminal and the user.
  • the communication interface 406 is disposed on the main body and is connected to the range finder 404, and is configured to transmit the distance measured by the range finder to the terminal.
  • the range finder 404 may employ ultrasonic technology or infrared technology, etc., but is not limited thereto.
  • the range finder 404 can communicate with the terminal through the communication interface 406.
  • the communication interface 406 can be a wired communication interface, such as a USB interface that is adapted to the terminal USB port. Of course, it can also be implemented by using Bluetooth or the like.
  • the range finder 404 can turn on or off the measurement of the distance in response to an instruction from the terminal.
  • the device connectable to the terminal may further include a processor that can detect if the measurement of the distance needs to be turned on or off.
  • the range finder 404 can be disposed at a location near the transmitter of the terminal when the body 402 is connected to the terminal, wherein the transmitter is configured to collect and transmit audio of the local user.
  • the position of the range finder 404 on the main body 402 can be set for different terminals.
  • the device that can connect the terminal may be a protective cover of the terminal, etc., but is not limited thereto.
  • FIG. 5 is a flowchart of a method for adjusting audio according to an embodiment of the present invention.
  • the method includes steps S502 to S504.
  • Step S502 Obtain a distance between the terminal and the user.
  • Step S504 adjusting the audio received and/or transmitted by the terminal according to the distance between the terminal and the user.
  • the foregoing step S502 and step S504 may be performed by the same device, or may be performed by different devices.
  • the above steps S502 and S504 may be performed in the terminal.
  • the terminal can detect the distance between the terminal and the user through its range finder.
  • adjusting the audio according to the audio parameter comprises: setting an audio filter according to the audio parameter to adjust the audio.
  • the audio parameter is a parameter that adjusts the frequency response of the audio.
  • the audio parameter corresponding to the distance between the terminal and the user may be searched; and the audio received and/or transmitted by the terminal is adjusted according to the found audio parameter.
  • the audio parameter corresponding to the distance may be preset.
  • each range of distances corresponds to a set of audio parameters, wherein the range of distances includes at least one distance, and the set of audio parameters includes at least one audio parameter.
  • the method before acquiring the distance between the terminal and the sound source object, the method further includes: determining whether the terminal is in a hands-free state; and detecting a distance between the terminal and the user when the terminal is in the hands-free state.
  • the prompt information indicating whether to enable the ranging is displayed on the terminal display interface, and the distance between the terminal and the user is detected in response to the opening operation.
  • the distance between the terminal and the user may be periodically detected, and the distance between the terminal and the user may also be detected in real time. In practical applications, the detection cycle can be set according to different needs.
  • the above steps S502 and S504 may be performed jointly by the terminal and the server.
  • the terminal After obtaining the distance between the terminal and the voice user, the terminal sends the distance between the terminal and the user to the server, and the server searches for the correspondence between the pre-stored distance and the audio parameter according to the distance between the terminal and the user, and sends the found audio parameter to the terminal.
  • the terminal adjusts the audio received and/or transmitted by the terminal according to the audio parameters sent by the server.
  • the above step S502 and the above step S504 may be performed by a server.
  • the server can obtain the distance between the terminal and the user from the terminal, the terminal can receive and/or transmit audio, and send audio to the server, and the server can adjust the audio according to the distance between the terminal and the user.
  • the server can pre-store the correspondence between the distance and the audio parameters, the server finds the audio parameter corresponding to the distance, and adjusts the audio according to the found audio parameters.
  • the above-mentioned contents of the examples of the present invention may be parameterized, and details are not described herein again.
  • FIG. 6 is a structural block diagram of an apparatus for adjusting audio according to an embodiment of the present invention.
  • the apparatus may include: an acquiring module 10 configured to acquire a distance between a terminal and a user; and an adjustment module 20 configured to The distance of the user adjusts the audio received and/or transmitted by the terminal.
  • the adjustment module 20 may include: a search unit configured to find an audio parameter corresponding to a distance between the terminal and the user; and an adjustment unit configured to adjust the audio according to the found audio parameter.
  • each range of distances corresponds to a set of audio parameters, wherein the range of distances includes at least one distance, and the set of audio parameters includes at least one audio parameter.
  • the device further includes: a determining module, configured to determine whether the terminal is in a hands-free state before acquiring the distance between the terminal and the user; and the detecting module, configured to detect the distance between the terminal and the user when the terminal is in the hands-free state .
  • a determining module configured to determine whether the terminal is in a hands-free state before acquiring the distance between the terminal and the user
  • the detecting module configured to detect the distance between the terminal and the user when the terminal is in the hands-free state .
  • the mobile terminal includes: a voice transceiver module configured to receive a voice signal and a voice signal; a ranging module configured to acquire a distance from the mobile terminal to the mouth of the person; and a voice processing module that calls the corresponding low according to the distance
  • the filter is compensated to keep the frequency response and loudness substantially unchanged, thereby improving the sound quality.
  • the method for improving hands-free call reception and transmitting voice quality includes: performing ranging when the mobile terminal is in a hands-free call state, and acquiring a distance from the mobile terminal to the human mouth; according to the obtained mobile terminal to the human mouth The distance is adjusted according to the corresponding rules.
  • the ranging module starts to start, and the ranging result is output.
  • the distance from the mobile terminal to the human mouth is obtained. Based on the distance change of the mobile terminal to the human mouth, multiple sets of distance values need to be set in advance, and then corresponding to the distance values according to certain rules. Audio parameters.
  • the audio parameters corresponding to these distances can be obtained from the experimental data, and finally the frequency response and loudness corresponding to different distance values are basically kept in a better state, thereby achieving the purpose of improving the sound quality.
  • the low-pass filter and the loudness used in the hands-free calling are set according to the standard distance test, but since the user's hands-free calling habits are different, the distance from the mobile terminal to the human mouth is greatly different. Therefore, the frequency response and loudness of the mobile terminal are changed relative to the user experience in the case of a non-standard distance.
  • the actual use feeling is that the mobile terminal is lacking in the middle and high sounds when the human mouth is close to the standard distance, and the sound clarity and layering are not strong; when the mobile terminal is farther than the standard distance from the human mouth, the bass is lacking, and the sound sounds monotonously full, no matter Whether it is bass or lack of medium to high audio frequency will affect the user's listening experience.
  • the frequency response and the loudness of the mobile terminal can be dynamically adjusted as the distance to the human mouth changes, so that the hands-free receiving and transmitting sound quality are basically maintained in a better state, thereby improving the sound quality and improving The user listens to the sound effect.
  • Step S702 when the user is in the hands-free mode, the ranging module is turned on.
  • the mobile terminal when the user talks in the hands-free mode, the mobile terminal first starts the ranging module, and then outputs the ranging result.
  • the ranging module can perform ranging using infrared technology or ultrasonic technology, but the ranging technology is not limited thereto, and other ranging technologies can also be applied.
  • the ranging module can be located near the earpiece. Taking the ultrasonic technology as an example, the ultrasonic transmitter emits ultrasonic waves, and starts timing at the same time.
  • the ultrasonic waves propagate in the air and return to the human mouth.
  • the ultrasonic receiver receives the reflected wave and immediately stops and stops timing. .
  • the detecting unit continuously detects the echoes generated after the wave is emitted, thereby measuring the time difference between the ultrasonic waves and the received echoes, and then calculating the distance from the mobile terminal to the human mouth.
  • Step S704 the mobile terminal acquires the distance from the mobile terminal to the human mouth according to the output result of the ranging module.
  • Step S706 obtaining corresponding audio parameters according to the distance from the mobile terminal to the human mouth.
  • multiple sets of actually available distance values may be set in advance based on the distance change of the mobile terminal to the human mouth, and a set of audio parameters are corresponding to each distance range, and the distance values are obtained according to the set rule.
  • Corresponding audio parameters the more the set distance value grouping, the more detailed the adjustment of the audio parameters.
  • the audio parameters corresponding to these distances can be obtained from the experimental data, and the audio test system is used to change the distance of the mobile terminal to the head and shoulder simulator (HATS) according to the set distance values set in advance to obtain the receiving and transmitting corresponding to different distances. Frequency response and loudness value.
  • the low-pass filter is designed one by one according to the plurality of sets of frequency response and loudness values tested, which results in an audio parameter corresponding to the distance value to be updated.
  • the frequency response and loudness corresponding to different distance values are basically kept in a better state, so as to improve the sound quality.
  • 8 to 10 are comparison diagrams of frequency response curves before and after compensation by audio parameters at different distances according to an embodiment of the present invention.
  • Figure 8 is a comparison of Figure 1 according to an embodiment of the present invention.
  • FIG. 9 is a comparison of FIG. 2 according to an embodiment of the present invention. As shown in FIG. 9, the receiving frequency response curve of 30 cm and the receiving frequency response of 45 cm after compensation are compared, and the consistency of the two curves is very good.
  • FIG. 10 is a comparison diagram 3 according to an embodiment of the present invention. As shown in FIG.
  • Step S708 the mobile terminal dynamically updates the sound quality according to the obtained audio parameters, so that the hands-free frequency response and the loudness are kept substantially unchanged in a preferred state, and the frequency response curve is low-frequency or high-frequency missing due to the distance change. The situation, which improves the sound quality.
  • the present invention achieves the following technical effects: obtaining the distance between the terminal and the sound source object, adjusting the audio of the sound source object received by the terminal according to the distance between the terminal and the sound source object, and realizing the terminal according to the terminal
  • the distance from the sound source object adjusts the audio to improve the audio quality.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • an audio adjustment method and apparatus provided by an embodiment of the present invention have the following beneficial effects: The audio is adjusted according to the distance between the terminal and the user, thereby improving the audio quality.

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Abstract

本发明公开了一种音频的调节方法及装置，其中，音频的调节方法包括：获取终端与用户的距离，根据终端与用户的距离调节终端接收和/或发送的音频。通过本发明，实现了根据终端与声源物体的距离调节音频，从而提升音频质量。

Description

音频的调节方法及装置 技术领域 本发明涉及通信领域， 具体而言， 涉及一种音频的调节方法及装置。 背景技术 现在， 移动终端的应用已经非常广泛， 普及程度非常高。 语音通话是移动终端的 一项基本功能， 语音通话音质的提升一个重要问题。 从人耳的听觉特性来讲， 低频声音是基础音， 如果低频声音声压值不够， 则会显 得音色单纯， 缺乏力度， 这部分对听觉的影响很大。 对于中频声音， 是人耳听觉最灵 敏的区域， 适当提升有利于增强放音的临场感， 有利于提高清晰度和层次感。 对于高 频声音， 高频声音的提升可以使音色显得生动活泼。 通常语音通话会有听筒和免提模式。 对于免提通话模式， 每个用户在使用时移动 终端到人嘴距离都不近相同， 而现在语音通话质量的调试和校准都是将移动终端放在 固定位置进行的， 这样的差别就影响了语音音质的效果。 因为随着移动终端到人嘴距 离的改变， 移动终端相对人嘴的频率响应和响度都会改变。 发明内容 本发明实施例提供了一种音频的调节方法及装置， 以至少解决相关技术中终端与 声源物体的距离的变化导致音频质量变化的问题。 根据本发明的一个实施例， 提供了一种终端， 包括： 测距器， 设置为检测终端与 用户的距离； 接收器， 设置为接收对端用户的音频； 发射器， 设置为采集并发送本端 用户的音频； 处理器， 与接收器和发射器相连接， 设置为根据终端与用户的距离调整 接收到的和 /或发送的音频。 可选地， 测距器设置在靠近发射器的位置。 可选地， 测距器为多个， 多个测距器分布在终端上。 处理器， 还设置为根据多个 测距器检测到的多个距离确定终端与用户的距离。 可选地， 音频参数用于调整所述音频的频率响应。 根据本发明的另一个实施例， 提供了一种终端， 包括： 测距器， 设置为检测终端 与用户的距离； 接收器， 设置为接收对端用户的音频； 发射器， 设置为采集并发送本 端用户的音频； 多个音频滤波器， 其中， 多个音频滤波器对应多组音频参数； 第一判 决器， 设置为根据终端与用户的距离判断处理接收到和 /或发送的音频的频率响应。 可选地， 测距器设置在靠近所述发射器的位置。 可选地， 测距器为多个， 多个测距器分布在终端上。 终端还包括： 第二判决器， 设置为根据多个测距器检测到的多个距离确定终端与用户的距离。 可选地， 音频参数用于调整所述音频的频率响应。 根据本发明的再一个实施例， 提供了一种具有测距器的终端， 包括： 接收器， 设 置为接收对端用户的音频； 发射器， 设置为采集并发送本端用户的音频； 处理器， 与 接收器和发射器相连接， 设置为根据测距器测量得到的用户与终端的距离调整接收到 和 /或发送的音频。 可选地， 测距器位于靠近发射器的位置。 可选地， 测距器为多个， 多个测距器分布在终端上。 处理器， 还设置为根据多个 测距器检测到的多个距离确定终端与用户的距离。 可选地， 音频参数用于调整所述音频的频率响应。 根据本发明的再一个实施例， 提供了一种可连接终端的装置， 包括： 主体， 设置 为可拆卸的与终端连接； 测距器， 设置在主体上， 设置为检测终端与用户的距离； 通 信接口， 设置在主体上， 与测距器相连接， 设置为向终端传输测距器测量得到的距离。 可选地， 测距器设置在当主体与终端连接时靠近终端的发射器的位置， 其中， 发 射器设置为采集并发送本端用户的音频。 可选地， 测距器为多个。
根据本发明的再一个实施例， 提供了一种音频的调节方法， 包括： 获取终端与用 户的距离； 根据终端与用户的距离调节终端接收到的和 /或发送的音频。 可选地， 根据终端与用户的距离调节终端接收到的声源物体的音频， 包括： 查找 终端与用户的距离对应的音频参数； 根据查找到的音频参数调节终端接收到的和 /或发 送的音频。 可选地， 每个距离范围对应一组音频参数， 其中， 距离范围包括至少一个距离， 一组音频参数包含至少一个音频参数。 可选地， 获取终端与声源物体的距离之前， 还包括： 判断终端是否处于免提状态； 当终端处于免提状态时， 检测终端与用户的距离。 可选地， 根据所述音频参数调节所述音频， 包括： 按照所述音频参数设置音频滤 波器， 以对所述音频进行调节。 可选地， 音频参数用于调整所述音频的频率响应。 根据本发明的再一个实施例， 提供了一种音频的调节装置， 包括： 获取模块， 设 置为获取终端与用户的距离； 调节模块， 设置为根据终端与用户的距离调节终端接收 到的和 /或和或发送的音频。 可选地， 调节模块， 包括： 查找单元， 设置为查找所述距离对应的音频参数， 其 中， 所述音频参数用于调整所述音频的频率响应； 调节单元， 设置为根据所述音频参 数调节所述音频。 可选地， 每个距离范围对应一组音频参数， 其中， 距离范围包括至少一个距离， 一组音频参数包含至少一个音频参数。 可选地， 上述装置还包括： 判断模块， 设置为在获取所述距离之前， 判断终端是 否处于免提状态； 检测模块， 设置为在终端处于免提状态时， 检测终端与用户的距离。 可选地， 调节模块， 设置为按照所述音频参数设置音频滤波器， 以对所述音频进 行调节。 通过本发明实施例， 获取终端与声源物体的距离， 根据终端与用户的距离调节终 端接收到的和 /或发送的音频， 实现了根据终端与用户的距离调节音频， 从而提升音频 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部分， 本发 明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图 中： 图 1是根据本发明实施例的终端的结构框图一； 图 2是根据本发明实施例的终端的结构框图二； 图 3是根据本发明实施例的具有测距器的终端的结构框图； 图 4是根据本发明实施例的可连接终端的装置的结构框图； 图 5是根据本发明实施例的音频的调节方法的流程图； 图 6是根据本发明实施例的音频的调节装置的结构框图； 图 7是根据本发明实施例可选的音频的调节方法的流程图； 图 8是根据本发明实施例的对比图一； 图 9是根据本发明实施例的对比图二； 图 10是根据本发明实施例的对比图三； 以及 图 11是根据本发明实施例的对比图四。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是， 在不冲突的 情况下， 本申请中的实施例及实施例中的特征可以相互组合。 在以下实施例中， 终端可以是多种类型的终端， 例如， 手机、 平板电脑、 个人数 字助理（PDA)、 录音装置等， 但不限于此。 一般而言， 终端上可以运行操作系统， 操 作系统多种多样， 例如， Windows、 安卓 （Android)、 苹果公司操作系统 （iOS)， 以 及专用的嵌入式系统等， 但不限于此。 在以下实施例中， "接收到的音频"一般指从其他设备接收到的音频， 例如， 通话 中对端的音频; "发送的音频"一般指通过发射器采集到的将要发送给其他设备的音频， 例如通话中发送给对端的音频。 但是， 本发明实施例并不限于此， 例如， 对于本地存 储的录音也可以作为 "接收到的音频"， 对于通过发射器， 例如麦克风采集到将保存在 本地的音频， 常见是本地音频录制， 也可以作为 "发送的音频"。 也就是说， 接收到的 音频是指要播放的音频， 发送的音频时采集到的音频。 图 1是根据本发明实施例的终端的结构框图一， 如图 1所示， 终端包括： 测距器 102， 设置为检测终端与用户的距离； 接收器 104， 设置为接收对端用户的音频； 发射 器 106， 设置为采集并发送本端用户的音频； 处理器 108， 与接收器 104和 /或发射器 106相连接， 设置为根据终端与用户的距离调整接收到的和 /或发送的音频。 在本发明实施例中， 测距器 102可以设置在靠近发射器 106的位置。 在本发明实施例的一个可选实施方式中，测距器 102可以是多个，多个测距器 102 分布在终端上。 处理器 106， 还设置为根据多个测距器 102检测到的多个距离确定终 端与用户的距离。 在本发明实施例中， 测距器 102可以采用红外线技术或超声波技术， 但是不限于 此。 发射器 106可以是麦克风。 以超声波技术为例， 超声波发射器发射超声波， 在发射同时开始计时， 超声波在 空气中传播， 遇到用户 （一般的为用户的面部） 时返回， 超声波接收器接收到反射波 立即中断停止计时。 通过不断检测超声波发射后又反射的回波， 从而测出超声波和接 收到回波的时间差， 然后计算出终端与声源物体的距离。 在本发明实施例中， 处理器 108可以是专用于调节音频的处理器， 也可以是终端 中的中央处理器。 在本发明实施例中， 可以预先设置多个距离范围， 并为每个距离范围设置一组音 频参数。 在调节音频时， 可以查找终端与声源物体的当前距离对应的音频参数， 根据 音频参数调节终端接收到的声源物体的音频。 上述的距离与音频参数的对应关系可以 根据实验测量得到。 可选地， 音频参数为调节音频的频率响应的参数。 可选地， 可以设置多个策略， 在不同的策略下相同距离所采用的音频参数不同， 例如， 对高质量的音频需求， 采用精度较高的音频参数， 而对音频要求不高的需求， 采用精度较低的音频参数。 在本发明实施例中， 还可以开启或关闭测距器 102， 例如， 在终端处于免提模式 时， 响应用户的操作， 或者自动开启测距器 102。 上述的免提模式， 并不专指语音通 话中的免提模式。 在本发明实施例的一个可选实施方式中，可以在终端的显示界面上显示提示信息， 提示开启或关闭测距器 102。 或者， 在检测到开启免提模式时， 自动开启测距器 102， 在检测到关闭免提模式时， 自动关闭测距器 102。
图 2是根据本发明实施例的终端的结构框图二， 如图 2所示， 终端可以包括： 测 距器 202， 设置为检测终端与用户的距离； 发射器 204， 设置为采集并发送音频； 多个 音频滤波器 206， 其中， 多个音频滤波器对应多组音频参数； 第一判决器 208， 设置为 根据终端与用户的距离判断处理接收到的和 /或发送的音频的音频滤波器。 在本发明实施例中， 多个音频滤波器 206可以是多个音频滤波电路， 也可以是可 以实现多种音频滤波的一个音频滤波器。 上述的第一判决器 208， 可以是一个处理器， 可以执行上述判断逻辑。 第一判决 器 208， 也可以是可以执行上述判断逻辑的数字电路， 但是不限于此。 在本发明实施例中， 测距器 202可以设置在靠近发射器的位置。 可选地， 测距器 202为多个， 多个测距器 202分布在终端上。 终端还可以包括： 第二判决器， 设置为 根据多个测距器 202检测到的多个距离确定终端与用户的距离。 在本发明实施例中， 与图 1所述的终端相同部分， 可以参见对图 1所示的终端的 描述， 在此不再赘述。
图 3是根据本发明实施例的具有测距器的终端的结构框图， 如图 3所示， 终端可 以包括： 接收器 302， 设置为接收对端用户的音频； 发射器 304， 设置为采集并发送本 端用户的音频； 处理器 306， 与接收器和发射器相连接， 设置为根据测距器测量得到 的用户与终端的距离调整接收到的和 /或发送的音频。 在本发明实施例中， 测距器可以位于靠近发射器 304的位置。 可选地， 测距器为 多个， 多个测距器分布在终端上。 处理器 306， 还设置为根据多个测距器检测到的多 个距离确定终端与用户的距离。 作为一个例子， 本发明实施例中的测距器可以可拆卸的连接在终端上， 例如， 通 过终端的 USB接口、 音频输出接口等于终端相连。 在本发明实施例中， 与图 1或图 2所述的终端相同部分， 可以参见对图 1或图 2 所示的终端的描述， 在此不再赘述。
图 4是根据本发明实施例的可连接终端的装置的结构框图， 如图 4所示， 该装置 可以包括： 主体 402， 设置为可拆卸的与终端连接； 测距器 404， 设置在主体 402上， 设置为检测终端与用户的距离； 通信接口 406， 设置在主体上， 与测距器 404相连接， 设置为向终端传输测距器测量得到的距离。 在本发明实施例中， 测距器 404可以采用超声波技术或红外线技术等， 但不限于 此。 测距器 404可以通过通信接口 406与终端通信， 通信接口 406可以是有线通信接 口， 例如与终端 USB对口适配的 USB接口， 当然， 还可以采用蓝牙等方式实现。 在本发明实施例中， 测距器 404可以响应终端的指令开启或关闭距离的测量。 可 选地， 可连接终端的装置还可以包括处理器， 处理器可以检测是否需要开启或关闭距 离的测量。 可选地， 测距器 404可以设置在当主体 402与终端连接时靠近终端的发射器的位 置， 其中， 发射器设置为采集并发送本端用户的音频。 在实际应用中， 可以针对不同 的终端设置测距器 404在主体 402上的位置。 可选地， 测距器 404为多个。 在本发明实施例中， 作为一个例子，上述可连接终端的装置可以终端的保护套等， 但是不限于此。
图 5是根据本发明实施例的音频的调节方法的流程图， 如图 5所示， 该方法包括 步骤 S502至步骤 S504。 步骤 S502， 获取终端与用户的距离。 步骤 S504, 根据终端与用户的距离调节终端接收到的和 /或发送的音频。 在本发明实施例中， 上述步骤 S502和步骤 S504可以在由同一设备执行， 也可以 由不同的设备共同完成。 作为一个例子， 上述步骤 S502和步骤 S504可以在终端中执行。 终端可以通过其 测距器检测终端与用户的距离。 可选地， 根据所述音频参数调节所述音频， 包括： 按照所述音频参数设置音频滤 波器， 以对所述音频进行调节。 可选地， 音频参数为调节音频的频率响应的参数。 可选地， 上述步骤 S502中， 可以查找终端与用户的距离对应的音频参数； 根据查 找到的音频参数调节终端接收到的和 /或发送的音频。 在本发明实施例中， 可以预先设 置距离对应的音频参数。 可选地， 每个距离范围对应一组音频参数， 其中， 距离范围包括至少一个距离， 一组音频参数包含至少一个音频参数。 在本发明实施例中， 获取终端与声源物体的距离之前， 还包括： 判断终端是否处 于免提状态； 当终端处于免提状态时， 检测终端与用户的距离。 可选地， 可以在终端 显示界面上显示提示是否开启测距的提示信息， 响应开启操作， 检测终端与用户的距 离。 在本发明实施例中， 可以周期性的检测终端与用户的距离， 也可以实时检测终端 与用户的距离。 在实际应用中， 可以根据不同需求设置检测周期。 作为另一个例子， 上述步骤 S502和步骤 S504可以由终端和服务器共同执行。 终端在获取到终端与声用户的距离后， 向服务器发送终端与用户的距离， 服务器 根据终端与用户的距离， 查找预先存储的距离与音频参数的对应关系， 并向终端发送 查找到的音频参数， 终端根据服务器发送的音频参数调节终端接收到的和 /或发送的音 频。 作为再一个例子， 上述步骤 S502和上述步骤 S504可以由服务器执行。 服务器可以从终端获取终端与用户的距离， 终端可以接收和 /或发送音频， 并向服 务器发送音频， 服务器可以根据终端与用户的距离调节音频。 服务器中可以预先存储 距离与音频参数的对应关系， 服务器查找到距离对应的音频参数， 根据查找到的音频 参数调节音频。 对于与本发明实施例上述内容相同的部分， 可以参数本发明实例上述的内容， 在 此不再赘述。
图 6是根据本发明实施例的音频的调节装置的结构框图， 如图 6所示， 该装置可 以包括： 获取模块 10， 设置为获取终端与用户的距离； 调节模块 20， 设置为根据终端 与用户的距离调节终端接收到的和 /或发送的音频。 可选地， 调节模块 20可以包括： 查找单元， 设置为查找终端与用户的距离对应的 音频参数； 调节单元， 设置为根据查找到的音频参数调节音频。 可选地， 每个距离范围对应一组音频参数， 其中， 距离范围包括至少一个距离， 一组音频参数包含至少一个音频参数。 可选地， 上述装置还包括： 判断模块， 设置为在获取终端与用户的距离之前， 判 断终端是否处于免提状态； 检测模块， 设置为在终端处于免提状态时， 检测终端与用 户的距离。 对于与上述内容相同的部分，可以参考对图 5所述的方法的描述，在此不再赘述。
下面对本发明实施例的一个可选实施方式进行描述。 可选实施方式一 在本发明实施例中， 在不增加移动通信终端设计成本和空间的条件下， 提供一种 提高免提通话接收和发送语音音质的方法。 本发明实施例的移动终端， 包括： 语音收发模块， 设置为接收语音信号和发送语 音信号； 测距模块， 设置为获取移动终端到人嘴的距离； 语音处理模块， 根据距离不 同调用相应的低通滤波器补偿来使频率响应和响度保持基本不变， 从而提升音质。 本发明实施例的提高免提通话接收和发送语音音质的方法， 包括： 当移动终端处 于免提通话状态时进行测距， 获取移动终端到人嘴的距离； 根据获取的移动终端到人 嘴的距离根据相应的规则对音频参数进行调整。 首先， 当移动终端处于免提通话状态时， 测距模块开始启动， 输出测距结果。 其次， 根据测距模块的输出结果就获取到移动终端到人嘴的距离， 基于移动终端 到人嘴的距离变化， 需要提前设定多组距离值， 然后根据某种规则得到这些距离值所 对应的音频参数。 这些距离所对应的音频参数可以由实验数据获取， 最终使得不同距 离值对应的频率响应和响度基本保持在一个较佳状态基本不变， 从而达到提升音质的 目的。 在相关技术中，免提通话时使用的低通滤波器和响度是根据标准距离测试而设定， 但是因为用户免提通话使用习惯不同， 手握移动终端到人嘴的距离有很大差别， 所以 在非标准距离的情况下移动终端的频率响应和响度相对用户感受是改变的。 这样实际 使用感受就是移动终端距离人嘴近于标准距离时中高音缺乏， 声音清晰度和层次感不 强； 移动终端距离人嘴远于标准距离时则低音缺乏， 声音听起来单调不够饱满， 无论 是低音还是中高音频率缺乏都会影响用户听音效果。 与现有技术相比， 所述移动终端 的频率响应和响度能够随着到人嘴距离的改变而进行动态调整， 使得免提接收和发送 音质基本保持在一个较佳状态， 从而提高音质， 提升了用户听音效果。 可选实施方式二 图 7是根据本发明实施例可选的音频的调节方法的流程图， 如图 7所示， 包括步 骤 S702至步骤 S708。 步骤 S702， 当用户处于免提模式时， 开启测距模块。 在本发明实施例中， 当用户在免提模式下通话时， 移动终端先启动测距模块， 然 后输出测距结果。 其中， 测距模块可以利用红外线技术或超声波技术进行测距， 但是测距技术不限 制于此， 同样可以应用其他测距技术。 测距模块可以至于听筒附近， 以超声波技术为例， 超声波发射器发射超声波， 在 发射同时开始计时， 超声波在空气中传播， 遇到人嘴后返回， 超声波接收器接收到反 射波立即中断停止计时。 检测单元通过不断检测产生波发射后又反射的回波， 从而测 出超声波和接收到回波的时间差， 然后计算出移动终端到人嘴的距离。 步骤 S704, 根据测距模块的输出结果移动终端就获取到移动终端到人嘴的距离。 步骤 S706, 根据移动终端到人嘴的距离， 获取对应的音频参数。 在本发明实施例中， 可以基于移动终端到人嘴的距离变化， 提前设定多组实际可 用的距离值， 每段距离范围内对应一组音频参数， 根据设定的这个规则得到这些距离 值所对应的音频参数。 其中， 设定的距离值分组越多， 那么音频参数的调整就越细致。 这些距离所对应 的音频参数可以由实验数据获取， 借用音频测试系统， 依据提前设定的多组距离值， 改变移动终端到头肩模拟器（HATS )的距离从而得到不同距离所对应的接收和发送频 率响应和响度值。 根据所测试的多组频率响应和响度值逐个设计低通滤波器， 这就得到了距离值对 应要更新的音频参数。 最终使得不同距离值对应的频率响应和响度基本保持在一个较 佳状态基本不变， 从而达到提升音质的目的。 图 8至图 10是根据本发明实施例的不同距离下频率响应曲线通过音频参数补偿前 后的对比图。 图 8是根据本发明实施例的对比图一， 如图 8所示， 是移动终端到人工嘴 30cm 的接收频率响应曲线和 45cm的接收频率响应曲线对比， 显然， 45cm处的接收频率响 应曲线比 30cm处的频率响应曲线在低频部分相差较大，设计低通滤波器补偿 45cm处 的接收频率响应曲线低频部分的缺失。 图 9是根据本发明实施例的对比图二， 如图 9所示， 是 30cm的接收频率响应曲 线和补偿后 45cm的接收频率响应对比， 两条曲线一致性效果很好。 图 10是根据本发明实施例的对比图三， 如图 10所示， 是移动终端到人工嘴 30cm 的发送频率响应曲线和 45cm 的发送频率响应曲线对比， 同样的， 设计低通滤波器对 45cm处的发送频率响应曲线做补偿， 得到图 11， 是 30cm的发送频率响应曲线和补偿 后 45cm的发送频率响应对比图， 两条曲线一致性效果很好。 步骤 S708, 移动终端根据获取的音频参数对音质进行动态更新， 从而保持免提频 率响应和响度基本保持在一个较佳状态基本不变， 弥补了因为距离改变而使频率响应 曲线低频或中高频缺失的情况， 从而提升了音质。 从以上的描述中， 可以看出， 本发明实现了如下技术效果： 获取终端与声源物体 的距离， 根据终端与声源物体的距离调节终端接收到的声源物体的音频， 实现了根据 终端与声源物体的距离调节音频， 从而提升音频质量。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多个计算装置所 组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码来实现， 从而， 可以 将它们存储在存储装置中由计算装置来执行， 并且在某些情况下， 可以以不同于此处 的顺序执行所示出或描述的步骤， 或者将它们分别制作成各个集成电路模块， 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样， 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。 工业实用性 如上所述，本发明实施例提供的一种音频的调节方法及装置，具有以下有益效果： 实现了根据终端与用户的距离调节音频， 从而提升音频质量。

Claims

权 利 要 求 书
1. 一种音频的调节方法， 包括： 获取终端与用户的距离；
根据所述距离调节所述终端接收到的和 /或发送的音频。
2. 根据权利要求 1所述的方法， 其中， 根据所述距离调节终端接收到的和 /或发送 的音频， 包括：
获取所述距离对应的音频参数， 其中， 所述音频参数用于调整所述音频的 频率响应； 根据所述音频参数调节所述音频。
3. 根据权利要求 1或 2所述的方法， 其中， 每个距离范围对应一组音频参数， 其 中， 所述距离范围包括至少一个距离， 所述一组音频参数包含至少一个音频参 数。
4. 根据权利要求 1所述的方法， 其中， 获取终端与声源物体的距离之前， 还包括: 判断所述终端是否处于免提状态；
当所述终端处于免提状态时， 检测所述终端与所述用户的距离。
5. 根据权利要求 2所述的方法， 其中， 根据所述音频参数调节所述音频， 包括： 按照所述音频参数设置音频滤波器， 以对所述音频进行调节。
6. 一种音频的调节装置， 包括： 获取模块， 设置为获取终端与用户的距离； 调节模块， 设置为根据所述距离调节所述终端接收到的和 /或发送的音频。
7. 根据权利要求 6所述的装置， 其中， 所述调节模块， 包括： 获取单元， 设置为获取所述距离对应的音频参数， 其中， 所述音频参数用 于调整所述音频的频率响应；
调节单元， 设置为根据所述音频参数调节所述音频。 根据权利要求 6或 7所述的装置， 其中， 每个距离范围对应一组音频参数， 其 中， 所述距离范围包括至少一个距离， 所述一组音频参数包含至少一个音频参 数。 根据权利要求 6所述的装置， 其中， 还包括： 判断模块，设置为在获取所述距离之前，判断所述终端是否处于免提状态; 检测模块， 设置为在所述终端处于免提状态时， 检测所述终端与所述用户 的距离。 根据权利要求 6所述的装置， 其中， 所述调节模块， 设置为按照所述音频参数 设置音频滤波器， 以对所述音频进行调节。
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