WO2015131634A1 - 声音降噪方法及终端 - Google Patents

声音降噪方法及终端 Download PDF

Info

Publication number
WO2015131634A1
WO2015131634A1 PCT/CN2014/095006 CN2014095006W WO2015131634A1 WO 2015131634 A1 WO2015131634 A1 WO 2015131634A1 CN 2014095006 W CN2014095006 W CN 2014095006W WO 2015131634 A1 WO2015131634 A1 WO 2015131634A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound information
instruction
function
noise reduction
information
Prior art date
Application number
PCT/CN2014/095006
Other languages
English (en)
French (fr)
Inventor
颜蓓
汪涛
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.)
Filing date
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 WO2015131634A1 publication Critical patent/WO2015131634A1/zh

Links

Images

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208Noise filtering

Definitions

  • the present invention relates to the field of sound noise reduction technologies, and in particular, to a sound noise reduction method and a terminal.
  • the embodiment of the invention provides a sound noise reduction method and a terminal.
  • a method for sound noise reduction comprising:
  • the step of acquiring the mixed sound information and the ambient sound information includes:
  • the first instruction is an instruction that indicates that the first function is turned on.
  • the method further includes:
  • the second instruction is an instruction indicating that the second function is enabled, and the priority of the second function is higher than the priority of the first function.
  • the method further includes:
  • the third instruction is an instruction to turn off the second function and restart the first function.
  • the first function comprises a recording or recording function
  • the second function comprises a call function
  • a terminal includes: a first microphone, a second microphone, and a processing chip, wherein:
  • the first microphone and the second microphone are configured to: respectively acquire the first mixed sound information and the first ambient sound information after detecting the first instruction;
  • the processing chip is configured to: perform noise reduction processing on the first mixed sound information according to the first ambient sound information, and store the processed information in a first storage location;
  • the first instruction is an instruction to enable the first function.
  • processing chip is further configured to:
  • the second instruction is an instruction indicating that the second function is enabled, and the priority of the second function is higher than the priority of the first function.
  • processing chip is further configured to:
  • the third instruction is an instruction to turn off the second function and restart the first function.
  • the second mic is disposed at a relative position of the first mic.
  • the second mic is disposed at the top of the terminal, and the first mic is disposed at the bottom of the terminal.
  • a computer program comprising program instructions that, when executed by a computer, cause the computer to perform any of the above described methods of sound noise reduction.
  • a carrier carrying the computer program A carrier carrying the computer program.
  • the technical problem to be solved is that the recording in the terminal does not have directivity, and as long as the recording function is turned on, a certain range of sounds are collected, which affects the quality of the recording. .
  • the embodiment of the invention uses the main microphone and the noise reduction microphone to record, and the main microphone collects the mixed sound information, including the target sound information and the environmental sound information, because the main microphone inevitably collects sounds in other directions, and the noise reduction microphone collects the environment. Sound information by taking ambient sound information from the Eliminated in the mixed sound information, the user gets pure target sound information.
  • the sound noise reduction method and device provided by the embodiments of the present invention can avoid the interference of reducing environmental sound information during the recording process, and at the same time, does not affect the noise reduction process of the call, and improves the user experience.
  • FIG. 1 is a main flowchart of a sound noise reduction method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a specific implementation of a sound noise reduction method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a distribution of a terminal microphone according to an embodiment of the present invention.
  • the purpose of the embodiments of the present invention is to reduce the environmental noise collected during recording, improve the recording quality, and improve the user experience.
  • FIG. 1 is a main flowchart of a sound noise reduction method according to an embodiment of the present invention, and the sound noise reduction method shown in FIG. 1 includes:
  • Step S11 After detecting the first instruction, acquiring the mixed sound information and the environmental sound information;
  • the first instruction is an instruction to start the first function
  • the first function is a recording or recording function
  • Step S12 Perform noise reduction processing on the mixed sound information according to the ambient sound information, and store the processed information in a first storage location;
  • the mixed sound information is received by a master microphone, and the mixed sound information includes target sound information and ambient sound information, and the ambient sound information is received through a noise reduction microphone.
  • the target sound information needs information of the acquired sound
  • the environmental sound information needs information of the sound of the surrounding environment of the acquired sound.
  • the position of the main microphone and the noise reduction microphone set in this embodiment is different from the direction of the received sound, and performing noise reduction processing on the mixed sound information includes: separating ambient sound information from the mixed sound information, and separating and obtaining The target sound information is stored to the first storage location.
  • the method for separating the ambient sound information from the mixed sound information belongs to the prior art, and details are not described herein again.
  • FIG. 2 is a flowchart of a specific implementation of a sound noise reduction method according to an embodiment of the present invention.
  • the sound noise reduction method shown in FIG. 2 includes:
  • Step 201 the main microphone is directed to the target sound source, and the noise reduction microphone is directed to the main noise sound source;
  • Step 202 After detecting the first instruction, the terminal separately collects the first mixed sound information and the first ambient sound information by using the primary microphone and the noise reduction microphone;
  • the first instruction is an instruction indicating that the first function is enabled, and optionally, an instruction of a recording or recording function.
  • Step 203 Perform noise reduction processing on the first mixed sound information according to the first ambient sound information.
  • the step of performing noise reduction processing on the first mixed sound information according to the first ambient sound information includes: removing the first ambient sound information from the first mixed sound information to obtain a first Target sound signal.
  • the terminal uses the first preset algorithm to remove the ambient sound information from the mixed sound information to obtain the first target sound signal.
  • the audio processing chip processes two sound signals corresponding to the main microphone and the noise reduction microphone.
  • the gain of the noise portion of the two signals is approximately the same, and the gain of the target sound source portion is significantly larger in the main mic than the noise reduction mic.
  • Step 204 Store the information obtained after the processing to the first storage location
  • the method before storing the processed information to the first storage location, the method further includes: sampling and encoding the processed information.
  • the sampling frequency can be 8 kHz, 44.1 kHz or 48 kHz, and the user can select a suitable sampling frequency and encode according to the encoding mode of the relevant audio format, and store the processed information as a corresponding audio format file.
  • Mp3 format Microsoft Play Audio (Windows Media Audio, wma) format, etc.
  • Step 210 Play back the stored audio file through a headset or a speaker.
  • the embodiment of the present invention is after step 204, before step 210. It also includes the following steps:
  • Step 205 After detecting the second instruction, saving a breakpoint of the first storage location;
  • the second instruction is an instruction for initiating a second function, and the second function has a higher priority than the first function, for example, the second instruction is an open phone function instruction, and the first instruction is to enable recording or Instructions for the recording function.
  • Step 206 The terminal acquires the second ambient sound information and the second mixed sound information during the second function opening period;
  • Step 207 Perform noise reduction processing on the second mixed sound information according to the second ambient sound information, and store the processed information in a second storage location.
  • the terminal uses the second preset algorithm to remove the ambient sound information from the mixed sound information to obtain a second target sound signal.
  • the first preset algorithm and the second preset algorithm may be the same or different.
  • Step 208 After detecting the third instruction, recovering a breakpoint of the first storage location;
  • the third instruction is an instruction to turn off the second function and restart the first function.
  • the method further includes: when restoring the breakpoint of the first storage location, releasing the space of the second storage location.
  • Step 209 Continue to collect the first mixed sound information and the first ambient sound information, and according to the The first ambient sound information performs noise reduction processing on the first mixed sound information, and stores the processed information in a first storage location.
  • the second preset algorithm is an algorithm for call noise reduction. Because the frequency response is to pass a certain curve, the same algorithm as the first preset algorithm may be used in this embodiment, or may be different. These are mature noise reduction algorithms, and the present invention does not limit this. It can be applied to single microphone or multi-microphone. It is mainly suitable for dual microphones. It can remove the noise and get the useful voice signal that the user wants. The principle is that the two microphones simultaneously collect speech and noise. Because of the difference between the positions of the two microphones, the acquired signals are also different. By analyzing the difference, the spatial distribution characteristics of the speech signal and the noise signal can be obtained, that is, by vector analysis. The noise is obtained as well as the general orientation of the voice, and after a series of calculations, the noise is separated from the mixed signal and the complete speech portion is preserved.
  • the embodiment of the invention improves the quality of the recorded audio by the algorithm and the dual microphone, and does not affect the sound quality of the voice call process, and solves the problem that the high quality audio recording cannot be performed on the terminal.
  • FIG. 3 is a schematic structural diagram of a terminal embodiment of the present invention. As shown in FIG. 3, an embodiment of the present invention further provides a terminal, where the device includes a first microphone 31, a second microphone 32, and a processing chip 33.
  • the first microphone 31 is a noise reduction microphone
  • the second microphone 32 is a noise reduction microphone.
  • the first microphone 31 is disposed at a position close to the target sound information sound source, and is configured to: after detecting the first instruction, acquire the first sound signal, In use, the target sound source is placed in a range that the first microphone can cover, and an optional selection places the target sound source in a direction facing the first microphone.
  • the second microphone 32 is disposed at a position relative to the first microphone 31, and is configured to: after detecting the first instruction, collect first ambient sound information, specifically, the sound information is from other than the coverage of the non-primary microphone In any direction, it belongs to environmental sound information.
  • the second mic 32 is toward the primary noise source.
  • the first instruction is an instruction indicating that the first function is turned on, and optionally, an instruction of a recording or recording function.
  • the processing chip 33 performs the first mixed sound information according to the first ambient sound information.
  • the noise reduction process stores the processed information to the first storage location; the first storage location may be disposed within the processing chip 33 or may exist separately outside the processing chip 33.
  • the processing chip 33 performs noise reduction processing on the first mixed sound information according to the first ambient sound information by using a first preset algorithm.
  • the processing chip 33 is further configured to: after detecting the second instruction, save a breakpoint of the first storage location; wherein the second instruction is an instruction indicating that the second function is enabled, and the second function is prioritized The level is higher than the priority of the first function.
  • the second function indicated by the second instruction has a higher priority than the first function indicated by the first instruction, for example, the second instruction is an open telephone function instruction, and the first instruction is to enable recording or recording. Instructions.
  • the second storage location may be set in Within the processing chip 33, it may also be present separately outside the processing chip 33.
  • the first microphone is configured to: after detecting the second instruction, acquiring a second sound signal
  • the second mic is configured to: after detecting the second instruction, collecting the second ambient sound information.
  • the processing chip 33 is further configured to: perform noise reduction processing on the second mixed sound information according to the second ambient sound information, and store the processed information in a second storage location;
  • the processing chip 33 uses the second preset algorithm to remove the ambient sound information from the mixed sound information to obtain a second target sound signal.
  • the first preset algorithm and the second preset algorithm may be the same or different.
  • the processing chip 33 is further configured to: resume the breakpoint of the first storage location after detecting the third instruction;
  • the third instruction is an instruction to turn off the second function and restart the first function.
  • the processing chip 33 is further configured to: after detecting the third instruction, continue to collect the first mixed sound information and the first ambient sound information, and perform noise reduction processing on the first mixed sound information according to the first ambient sound information, The processed information is stored to the first storage location.
  • FIG. 4 is a schematic diagram of a microphone distribution of a terminal embodiment of the present invention. As shown in FIG. 4, the first microphone 31 is disposed near the bottom of the terminal, and the second microphone 32 is disposed near the top of the terminal.
  • the processing chip 33 and the first storage location, the second storage location are located inside the terminal housing, which is not displayed in the figure;
  • 2a is the sound source of the target sound signal, when the sound source of the target sound signal is facing the first When the microphone is 31, the noise reduction effect is optimal, and
  • 2c is the ambient sound information sound source.
  • first microphone and the second microphone may also be distributed in front of and behind the terminal, respectively, and the invention does not limit this.
  • the embodiment of the invention uses the main microphone and the noise reduction microphone to record, and the main microphone collects the mixed sound information, including the target sound information and the environmental sound information, because the main microphone inevitably collects sounds in other directions, and the noise reduction microphone collects the environment.
  • the sound information is eliminated from the mixed sound information by the first pre-audit algorithm, and the user obtains the pure target sound information.
  • the sound noise reduction method and device provided by the embodiments of the present invention can avoid the interference of reducing environmental sound information during the recording process, and at the same time, does not affect the noise reduction process of the call, and improves the user experience. Therefore, the present invention has strong industrial applicability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephone Function (AREA)

Abstract

一种声音降噪方法及终端,所述方法包括:在检测到第一指令后,获取混合声音信息和环境声音信息(S11);根据所述环境声音信息对所述混合声音信息,利用第一预设算法进行降噪处理,将处理后的信息存储到第一存储位置(S12);其中,所述第一指令为开启录音或录像功能的指令。该终端和方法能够降低在录制过程中的噪音,提升用户体验。

Description

声音降噪方法及终端 技术领域
本发明涉及声音降噪技术领域,特别是涉及一种声音降噪方法及终端。
背景技术
随着移动智能终端的内容和应用不断丰富,智能终端也越来融入人们的生活,几乎成为人们生活中不可缺少的一部分,与此同时,使用者对智能终端的用户体验和功能集成也提出了越来越高的要求。录音作为手持终端的一个基本功能,逐渐有取代其它单一录音功能设备如录音笔,录音机的趋向,这样给用户带来极大的方便,减少随身携带的各种电子设备,但目前的录音方案有一个缺点,限制了很多人的使用,即录音不具备指向性,只要打开录音功能,那么一定范围内的声音都会被采集进来,这就使用得一些用户不需要的声音或杂音也将被录制进来,影响了录音的质量。举个例子,用户经常会有这样的需求,如录制小孩的一些语言行为或声音行为时,有大人在场做指导,但是我们有时并不想把大人因指导而发出的声音也录制进去,如何更好的在移动终端上实现高质量的录音也是一个亟待解决的问题。
发明内容
为解决相关技术中存在的技术问题,本发明实施例提供一种声音降噪方法及终端。
为达到上述目的,采用如下技术方案:
一种声音降噪方法,包括:
获取第一混合声音信息和第一环境声音信息;
根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置。
可选地,所述获取混合声音信息和环境声音信息的步骤包括:
收到第一指令后,获取所述第一混合声音信息和第一环境声音信息;
其中,所述第一指令为指示开启第一功能的指令。
可选地,所述方法还包括:
在检测到第二指令后,保存所述第一存储位置的断点;
获取第二功能开启期间的第二环境声音信息和第二混合声音信息,根据所述第二环境声音信息对所述第二混合声音信息进行降噪处理,将处理后的信息存储到第二存储位置;
其中,所述第二指令为指示开启第二功能的指令,且所述第二功能的优先级高于所述第一功能的优先级。
可选地,所述方法还包括:
在检测到第三指令后,恢复所述第一存储位置的断点;
继续采集所述第一混合声音信息和所述第一环境声音信息,并根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置;
其中,所述第三指令为关闭所述第二功能,重新开启所述第一功能的指令。
可选地,所述第一功能包括录音或录像功能,所述第二功能包括通话功能。
一种终端,包括:第一麦克、第二麦克和处理芯片,其中:
所述第一麦克和所述第二麦克设置成:在检测到第一指令后,分别获取第一混合声音信息和第一环境声音信息;
所述处理芯片设置成:根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置;
其中,所述第一指令为开启第一功能的指令。
可选地,所述处理芯片还设置成:
在检测到第二指令后,保存所述第一存储位置的断点;获取第二功能开 启期间的第二环境声音信息和第二混合声音信息,根据所述第二环境声音信息对所述第二混合声音信息进行降噪处理,将处理后的信息存储到第二存储位置;
其中,所述第二指令为指示开启第二功能的指令,且所述第二功能的优先级高于所述第一功能的优先级。
可选地,处理芯片还设置成:
在检测到第三指令后,恢复所述第一存储位置的断点;
继续采集所述第一混合声音信息和所述第一环境声音信息,并根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到所述第一存储位置;
其中,所述第三指令为关闭所述第二功能,重新开启所述第一功能的指令。
可选地,所述第二麦克设置在所述第一麦克的相对位置。
可选地,所述第二麦克设置在所述终端的顶部,所述第一麦克设置在所述终端的底部。
一种计算机程序,包括程序指令,当该程序指令被计算机执行时,使得该计算机可执行上述任意的声音降噪方法。
一种载有所述计算机程序的载体。
根据本发明实施例提供的声音降噪方法及终端,所要解决的技术问题是目前终端中录音不具备指向性,只要打开录音功能,那么一定范围内的声音都会被采集进来,影响了录音的质量。
本发明实施例使用主麦克和降噪麦克进行录音,主麦克采集混合声音信息,包括目标声音信息和环境声音信息,因为主麦克不可避免的会采集到其它方向的声音,降噪麦克采集到环境声音信息,通过将环境声音信息从所述 混合声音信息中消除,用户得到纯净的目标声音信息。本发明实施例提供的声音降噪方法和装置,既可以避免录制过程中减少环境声音信息的干扰,同时又不会影响通话的降噪过程,提升了用户体验。
附图概述
在附图(其不一定是按比例绘制的)中,相似的附图标记可在不同的视图中描述相似的部件。具有不同字母后缀的相似附图标记可表示相似部件的不同示例。附图以示例而非限制的方式大体示出了本文中所讨论的各个实施例。
图1是本发明实施例的声音降噪方法主流程图;
图2是本发明实施例的声音降噪方法具体实现流程图;
图3是本发明实施例的终端结构示意图;
图4是本发明实施例的终端麦克分布示意图。
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。
本发明的较佳实施方式
下面结合附图对本发明作进一步的描述,并不能用来限制本发明的保护范围。
本发明实施例的目的在于,能够降低录制时采集的环境噪声,提高录音质量,提升用户体验。
图1是本发明实施例声音降噪方法主流程图,如图1所示的声音降噪方法包括:
步骤S11:在检测到第一指令后,获取混合声音信息和环境声音信息;
可选地,本实施例中,所述第一指令为指示开启第一功能的指令,可选地,第一功能为录音或录像功能。
步骤S12:根据所述环境声音信息,对所述混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置;
本实施例中,通过一个主麦克接收混合声音信息,所述混合声音信息包括目标声音信息和环境声音信息,通过一个降噪麦克接收到环境声音信息。其中,目标声音信息需要获取的声音的信息,环境声音信息需要获取的声音周围环境的声音的信息。
本实施例的主麦克和降噪麦克设置的位置和接收的声音方向不同,对所述混合声音信息进行降噪处理包括:将环境声音信息从所述混合声音信息中分离,并将分离后得到的目标声音信息存储到第一存储位置。将环境声音信息从所述混合声音信息中分离的方法属于现有技术,在此不再赘述。
图2为本发明实施例声音降噪方法具体实现流程图,如图2所示的声音降噪方法,包括:
步骤201,将主麦克朝向目标声源,将降噪麦克朝向主要噪声声源;
步骤202,终端检测到第一指令后,采用主麦克和降噪麦克分别采集第一混合声音信息和第一环境声音信息;
可选地,本实施例中,所述第一指令为指示开启第一功能的指令,可选地,为录音或录像功能的指令。
步骤203,根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理;
可选地,根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理的步骤包括:将所述第一环境声音信息从所述第一混合声音信息中消除,得到第一目标声音信号。
可选地,终端利用第一预设算法将所述环境声音信息从所述混合声音信息中消除,得到所述第一目标声音信号。
在终端中有音频处理芯片,所述音频处理芯片处理所述主麦克和所述降噪麦克对应的两路声音信号。两路信号中的噪声部分增益大致是一样的,而目标声源部分的增益,主麦克中明显要大于降噪麦克。
步骤204,将处理后得到的信息存储到第一存储位置;
本实施例中,将处理后的信息存储到第一存储位置之前还包括:将处理后的信息进行采样和编码。采样频率可以采用8kHz,44.1kHz或是48kHz等频率,可供用户自行选择合适的采样频率,并按照相关音频格式的编码方式进行编码,将所述处理后的信息存储为相应的音频格式文件,mp3格式,微软播放音频(Windows Media Audio,wma)格式等。
步骤210:通过耳机或者扬声器将存储的音频文件回放。
在本实施例中,在录制过程中,如果终端检测到优先级比较高的另一个功能的开启,例如接听电话或者主动拨打电话功能的开启,则本发明实施例在步骤204之后,步骤210之前,还包括如下步骤:
步骤205:在检测到第二指令后,保存所述第一存储位置的断点;
所述第二指令为指示开启第二功能的指令,所述第二功能的优先级高于所述第一功能的优先级,例如第二指令为开启电话功能指令,第一指令为开启录音或录像功能的指令。
步骤206:终端获取第二功能开启期间的第二环境声音信息和第二混合声音信息;
步骤207:根据所述第二环境声音信息对所述第二混合声音信息进行降噪处理,将处理后的信息存储到第二存储位置;
可选地,终端利用第二预设算法将所述环境声音信息从所述混合声音信息中消除,得到第二目标声音信号。
可选地,第一预设算法和第二预设算法可以相同,也可以不同。
步骤208:在检测到第三指令后,恢复所述第一存储位置的断点;
其中,所述第三指令为关闭所述第二功能,重新开启所述第一功能的指令。
可选的,该方法还包括:恢复所述第一存储位置的断点时,释放所述第二存储位置的空间。
恢复所述第一存储位置的断点的技术属于现有技术,在此不再赘述。
步骤209:继续采集第一混合声音信息和第一环境声音信息,并根据所 述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置。
该实施例中,所述第二预设算法为用于通话降噪的算法。因为通过频响是要过一定曲线,故该实施例中可采用和所述第一预设算法相同的算法,也可以不同,这些都是成熟的降噪算法,本发明对此不做限制。可适用于单麦克也可适用于多麦克,主要适用于双麦克,可以在去除噪音的同时获取用户想要的有用的语音信号。其原理是通过两个麦克同时采集语音和噪音,由于两个麦克安放的位置的差异,获取的信号也有差异,通过分析这种差异可以得到语音信号和噪音信号的空间分布特性,即通过矢量分析得到噪音以及语音传过来的大致方位,再经过一系列的计算从混合信号中分离出噪音,并且保留完整的语音部分。
本发明实施例通过算法和双麦克提升录制音频的质量,而且不影响语音通话过程的声音质量,解决了在终端上不能进行高质量音频录制的问题。
图3是本发明终端实施例结构示意图,如图3所示,本发明实施例还提供了一种终端,其中,所述装置包括第一麦克31、第二麦克32、处理芯片33。
其中,第一麦克31为主麦克,第二麦克32为降噪麦克,第一麦克31设置在靠近目标声音信息声源的位置,设置成:检测到第一指令后,采集第一声音信号,使用时将目标声源置于第一麦克可覆盖的范围,可选的选择将目标声源置于正对所述第一麦克的方向。
第二麦克32设置在相对所述第一麦克31的位置,设置成:检测到所述第一指令后,采集第一环境声音信息,具体的,这些声音信息来自非主麦克覆盖范围内的其它任何方向,属于环境声音信息。可选地,第二麦克32朝向主要噪声声源处。
所述第一指令为指示开启第一功能的指令,可选地,为录音或录像功能的指令。
处理芯片33根据所述第一环境声音信息对所述第一混合声音信息进行 降噪处理,将处理后的信息存储到第一存储位置;所述第一存储位置可以设置在处理芯片33之内,也可以位于处理芯片33外部单独存在。
可选地,处理芯片33利用第一预设算法,根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理。
处理芯片33还设置成:在检测到第二指令后,保存所述第一存储位置的断点;其中,所述第二指令为指示开启第二功能的指令,且所述第二功能的优先级高于所述第一功能的优先级。
所述第二指令所指示开启的第二功能的优先级高于第一指令所指示开启的第一功能的优先级,例如第二指令为开启电话功能指令,第一指令为开启录音或录像功能的指令。
第二存储位置,根据所述环境声音信息对所述混合声音信息,利用第二预设算法进行降噪处理,将处理后的信息存储到第二存储位置;所述第二存储位置可以设置在处理芯片33之内,也可以位于处理芯片33外部单独存在。
第一麦克设置成:检测到所述第二指令后,采集第二声音信号;
第二麦克设置成:检测到所述第二指令后,采集第二环境声音信息。
处理芯片33还设置成:根据所述第二环境声音信息对所述第二混合声音信息进行降噪处理,将处理后的信息存储到第二存储位置;
可选地,处理芯片33利用第二预设算法将所述环境声音信息从所述混合声音信息中消除,得到第二目标声音信号。
可选地,第一预设算法和第二预设算法可以相同,也可以不同。
处理芯片33还设置成:在检测到第三指令后,恢复所述第一存储位置的断点;
所述第三指令为关闭所述第二功能,重新开启所述第一功能的指令。
处理芯片33还设置成:检测到第三指令后,继续采集第一混合声音信息和第一环境声音信息,并根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置。
图4为本发明终端实施例麦克分布示意图,如图4所示,第一麦克31设置在靠近所述终端的底部,所述第二麦克32设置在靠近所述终端的顶部。
具体的,处理芯片33和第一存储位置,第二存储位置都位于终端壳体的内部,该图中不显示;2a为目标声音信号的声源,当目标声音信号的声源正对第一麦克31时,降噪效果最优,2c为环境声音信息声源。
该实施例只是一个简单的示例,所述第一麦克和所述第二麦克也可以分别分布在终端的前方和后发,该发明对此不做限制。
以上所述的实施例仅是为了便于本领域的技术人员理解而已,并不用于限制本发明的保护范围,在不脱离本发明的发明构思的前提下,本领域技术人员对本发明所做出的任何显而易见的替换和改进等均在本发明的保护范围之内。
工业实用性
本发明实施例使用主麦克和降噪麦克进行录音,主麦克采集混合声音信息,包括目标声音信息和环境声音信息,因为主麦克不可避免的会采集到其它方向的声音,降噪麦克采集到环境声音信息,通过所述第一预审算法将环境声音信息从所述混合声音信息中消除,用户得到纯净的目标声音信息。本发明实施例提供的声音降噪方法和装置,既可以避免录制过程中减少环境声音信息的干扰,同时又不会影响通话的降噪过程,提升了用户体验。因此本发明具有很强的工业实用性。

Claims (12)

  1. 一种声音降噪方法,包括:
    获取第一混合声音信息和第一环境声音信息;
    根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置。
  2. 如权利要求1所述的声音降噪方法,其中,所述获取混合声音信息和环境声音信息的步骤包括:
    收到第一指令后,获取所述第一混合声音信息和第一环境声音信息;
    其中,所述第一指令为指示开启第一功能的指令。
  3. 如权利要求2所述的声音降噪方法,所述方法还包括:
    在检测到第二指令后,保存所述第一存储位置的断点;
    获取第二功能开启期间的第二环境声音信息和第二混合声音信息,根据所述第二环境声音信息对所述第二混合声音信息进行降噪处理,将处理后的信息存储到第二存储位置;
    其中,所述第二指令为指示开启第二功能的指令,且所述第二功能的优先级高于所述第一功能的优先级。
  4. 如权利要求3所述的声音降噪方法,所述方法还包括:
    在检测到第三指令后,恢复所述第一存储位置的断点;
    继续采集所述第一混合声音信息和所述第一环境声音信息,并根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置;
    其中,所述第三指令为关闭所述第二功能,重新开启所述第一功能的指令。
  5. 如权利要求4所述的声音降噪方法,其中,所述第一功能包括录音或录像功能,所述第二功能包括通话功能。
  6. 一种终端,包括:第一麦克、第二麦克和处理芯片,其中:
    所述第一麦克和所述第二麦克设置成:在检测到第一指令后,分别获取第一混合声音信息和第一环境声音信息;
    所述处理芯片设置成:根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到第一存储位置;
    其中,所述第一指令为开启第一功能的指令。
  7. 如权利要求6所述的终端,其中,所述处理芯片还设置成:
    在检测到第二指令后,保存所述第一存储位置的断点;获取第二功能开启期间的第二环境声音信息和第二混合声音信息,根据所述第二环境声音信息对所述第二混合声音信息进行降噪处理,将处理后的信息存储到第二存储位置;
    其中,所述第二指令为指示开启第二功能的指令,且所述第二功能的优先级高于所述第一功能的优先级。
  8. 如权利要求7所述的终端,其中,处理芯片还设置成:
    在检测到第三指令后,恢复所述第一存储位置的断点;
    继续采集所述第一混合声音信息和所述第一环境声音信息,并根据所述第一环境声音信息对所述第一混合声音信息进行降噪处理,将处理后的信息存储到所述第一存储位置;
    其中,所述第三指令为关闭所述第二功能,重新开启所述第一功能的指令。
  9. 如权利要求6至8中任一项所述的终端,其中,所述第二麦克设置在所述第一麦克的相对位置。
  10. 如权利要求9所述的终端,其中,所述第二麦克设置在所述终端的顶部,所述第一麦克设置在所述终端的底部。
  11. 一种计算机程序,包括程序指令,当该程序指令被计算机执行时,使得该计算机可执行权利要求1-5中任一项所述的声音降噪方法。
  12. 一种载有权利要求11所述计算机程序的载体。
PCT/CN2014/095006 2014-10-11 2014-12-25 声音降噪方法及终端 WO2015131634A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410535050.XA CN105575398A (zh) 2014-10-11 2014-10-11 声音降噪方法及终端
CN201410535050.X 2014-10-11

Publications (1)

Publication Number Publication Date
WO2015131634A1 true WO2015131634A1 (zh) 2015-09-11

Family

ID=54054499

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/095006 WO2015131634A1 (zh) 2014-10-11 2014-12-25 声音降噪方法及终端

Country Status (2)

Country Link
CN (1) CN105575398A (zh)
WO (1) WO2015131634A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115359803A (zh) * 2022-10-21 2022-11-18 中诚华隆计算机技术有限公司 一种基于芯片实现的语音降噪优化方法及装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106910500B (zh) * 2016-12-23 2020-04-17 北京小鸟听听科技有限公司 对带麦克风阵列的设备进行语音控制的方法及设备
CN109346053A (zh) * 2018-09-27 2019-02-15 珠海格力电器股份有限公司 降噪装置、控制方法及控制装置
CN109584897B (zh) * 2018-12-28 2023-11-10 西藏瀚灵科技有限公司 视频降噪方法、移动终端及计算机可读存储介质

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267323A (en) * 1989-12-29 1993-11-30 Pioneer Electronic Corporation Voice-operated remote control system
CN1797544A (zh) * 2004-12-30 2006-07-05 华为技术有限公司 一种无线终端语音处理的方法及装置
WO2007108847A2 (en) * 2006-03-13 2007-09-27 Noise Free Wireless, Inc. System, device, database and method for increasing capacity and call volume of communications networks
CN101625871A (zh) * 2008-07-11 2010-01-13 富士通株式会社 噪声抑制装置、噪声抑制方法以及移动电话机
CN101641871A (zh) * 2007-04-10 2010-02-03 Sk电信有限公司 移动通信终端中的语音处理装置和方法
CN102223428A (zh) * 2011-06-24 2011-10-19 中兴通讯股份有限公司 一种降低噪声的方法及移动终端
CN102411936A (zh) * 2010-11-25 2012-04-11 歌尔声学股份有限公司 语音增强方法、装置及头戴式降噪通信耳机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201435757Y (zh) * 2009-01-21 2010-03-31 北京华旗资讯数码科技有限公司 一种手机录音装置
CN201639630U (zh) * 2010-04-12 2010-11-17 上海华勤通讯技术有限公司 具有立体声录音功能的手机
CN201717913U (zh) * 2010-06-10 2011-01-19 深圳市中兴移动通信有限公司 一种移动终端
CN102111468A (zh) * 2010-12-20 2011-06-29 上海华勤通讯技术有限公司 降噪通话手机及其方法
CN103366756A (zh) * 2012-03-28 2013-10-23 联想(北京)有限公司 一种声音信号的接收方法及装置
CN103888610B (zh) * 2014-03-18 2016-03-02 努比亚技术有限公司 同时通话和录音的方法和通讯终端
CN103888580B (zh) * 2014-03-31 2016-08-17 宇龙计算机通信科技(深圳)有限公司 一种终端录音过程中降噪处理方法及终端

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267323A (en) * 1989-12-29 1993-11-30 Pioneer Electronic Corporation Voice-operated remote control system
CN1797544A (zh) * 2004-12-30 2006-07-05 华为技术有限公司 一种无线终端语音处理的方法及装置
WO2007108847A2 (en) * 2006-03-13 2007-09-27 Noise Free Wireless, Inc. System, device, database and method for increasing capacity and call volume of communications networks
CN101641871A (zh) * 2007-04-10 2010-02-03 Sk电信有限公司 移动通信终端中的语音处理装置和方法
CN101625871A (zh) * 2008-07-11 2010-01-13 富士通株式会社 噪声抑制装置、噪声抑制方法以及移动电话机
CN102411936A (zh) * 2010-11-25 2012-04-11 歌尔声学股份有限公司 语音增强方法、装置及头戴式降噪通信耳机
CN102223428A (zh) * 2011-06-24 2011-10-19 中兴通讯股份有限公司 一种降低噪声的方法及移动终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115359803A (zh) * 2022-10-21 2022-11-18 中诚华隆计算机技术有限公司 一种基于芯片实现的语音降噪优化方法及装置

Also Published As

Publication number Publication date
CN105575398A (zh) 2016-05-11

Similar Documents

Publication Publication Date Title
TWI667926B (zh) 一種基於麥克風陣列的拾音方法及系統
CN107105367B (zh) 一种音频信号处理方法及终端
CN110970057B (zh) 一种声音处理方法、装置与设备
US10349176B1 (en) Method for processing signals, terminal device, and non-transitory computer-readable storage medium
US8600743B2 (en) Noise profile determination for voice-related feature
EP3081011B1 (en) Name-sensitive listening device
US10834503B2 (en) Recording method, recording play method, apparatuses, and terminals
US8909537B2 (en) Device capable of playing music and method for controlling music playing in electronic device
US9818423B2 (en) Method of improving sound quality and headset thereof
JP5929786B2 (ja) 信号処理装置、信号処理方法及び記憶媒体
WO2015131634A1 (zh) 声音降噪方法及终端
WO2023284402A1 (zh) 音频信号处理方法、系统、装置、电子设备和存储介质
WO2022140928A1 (zh) 用于抑制回声的音频信号处理方法和系统
CN109256145B (zh) 基于终端的音频处理方法、装置、终端和可读存储介质
US20210266655A1 (en) Headset configuration management
CN106302974B (zh) 一种信息处理的方法及电子设备
WO2017166495A1 (zh) 一种语音信号处理方法及装置
CN111028838A (zh) 一种语音唤醒方法、设备及计算机可读存储介质
GB2526980A (en) Sensor input recognition
CN111182416A (zh) 处理方法、装置及电子设备
EP2849341A1 (en) Loudness control at audio rendering of an audio signal
US20200380992A1 (en) Hybrid routing for hands-free voice assistant, and related systems and methods
US10623845B1 (en) Acoustic gesture detection for control of a hearable device
GB2553040A (en) Sensor input recognition
WO2018227560A1 (zh) 耳机控制方法及系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14884730

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14884730

Country of ref document: EP

Kind code of ref document: A1