Voice enhancement method and device, and earphone

A voice enhancement and earphone technology, which is applied in speech analysis, earpiece/earphone accessories, earphones to reduce environmental noise, etc., can solve the problems of low computational complexity, poor real-time performance, and high computational complexity, and achieve online calculation with small amount and real-time performance Good, simple method and effect

Inactive Publication Date: 2018-12-07
HUITING ACOUSTICS TECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of fixed beamforming is suitable for the environment where the acoustic scene is fixed, but the computational complexity is low, and the real-time performance is better; while the method of adaptive beamforming is more robust, but the computational complexity is high, and the real-time performance is poor.

Method used

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  • Voice enhancement method and device, and earphone
  • Voice enhancement method and device, and earphone
  • Voice enhancement method and device, and earphone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 It shows a flow chart of the steps of the speech enhancement method provided by the embodiment of the present invention, refer to figure 1 , the speech enhancement method includes the steps of:

[0041] S100: Using a voice pickup method, pick up a first voice signal in ambient noise;

[0042] S200: For the first voice signal, use a voice enhancement method to obtain a second voice signal.

[0043] The above-mentioned voice enhancement method divides the voice enhancement process into two steps of picking up the voice signal and enhancing the voice signal. The first step is to roughly determine the voice signal that needs to be enhanced in the ambient sound by picking up the voice signal; the second step is to pick up the voice signal. enhanced.

[0044] In one embodiment, the voice pickup method described in step S100 includes the following steps:

[0045] S110: Acquire a first sound signal and a second sound signal;

[0046] S120: Based on the fir...

Embodiment 2

[0062] Such as figure 2 shows a schematic structural diagram of the speech enhancement device provided by the embodiment of the present invention, refer to figure 2 , the speech enhancement device includes: a pickup module 100 and an enhancement module 200, and the pickup module 100 is connected to the enhancement module 200. The pickup module 100 is used to pick up the first speech signal in the ambient noise; the enhancement module 200 is used to perform speech enhancement on the first speech signal and obtain a second speech signal.

[0063] In one embodiment, continue to refer to figure 2 , the pickup module 100 includes at least two sound detection devices 110 and an intensity calculation circuit 120, the output of the sound detection device 110 is connected to the input end of the intensity calculation circuit 120; the output end of the intensity calculation circuit 120 is connected to the input end of the enhancement module 200; The sound detection device 110 is us...

Embodiment 3

[0067] Such as image 3 The structural schematic diagram of the earphone shown, refer to image 3 , the earphone includes the speech enhancement device 10 proposed in Embodiment 2, and also includes a speaker 20 connected to the enhancement module 200 for playing the second speech signal. Specifically, the voice enhancement device 10 is installed on the inner wall of the earphone rear cavity, and several small holes are punched at the installation place to ensure that external sound signals can enter the earphone and be detected by the microphone in the voice enhancement device 10 .

[0068] In one embodiment, the above earphone further includes an active noise reduction device 30 and an active enhancement device 30 for eliminating low frequency noise.

[0069] In one embodiment, continue to refer to image 3 , the active noise reduction device 30 includes a noise reduction circuit 310 and a microphone 320 , the microphone 320 is connected to the noise reduction circuit 310 ...

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Abstract

The invention provides a voice enhancement method, a voice enhancement device and an earphone, which relate to the field of voice enhancement. The voice enhancement method comprises the steps of: picking up a first voice signal in ambient noise by using a voice pickup method; and acquiring a second voice signal by utilizing the voice enhancement method for the first voice signal. Compared with theprior art, the voice enhancement method provided by the invention divides the voice enhancement process into two steps of picking up the voice signal and enhancing the voice signal. In the first step, the voice signal to be enhanced in ambient sounds is determined substantially through pickup of the voice signal. In the second step, the picked up voice signal is enhanced. The voice enhancement method can perform voice enhancement on a moving sound source in a noisy environment, has the advantages of small online calculation amount and good real-time performance, is simple, and is easy to implement.

Description

technical field [0001] The invention relates to the field of speech enhancement, in particular to a speech enhancement method, device and earphone. Background technique [0002] The purpose of speech enhancement is to extract the original speech signal from the noisy speech signal. The voice enhancement method of digital signal processing is a mainstream method, and it is the main idea of ​​voice noise reduction in the industry at present. According to the number of channels, it can be divided into: a single-channel speech enhancement method and a microphone array speech enhancement method. Compared with the single-channel speech enhancement method, the microphone array speech enhancement method utilizes more microphones, takes into account the spatial information of the signal, and has more advantages in suppressing interference in characteristic directions and performing speech separation. [0003] The mainstream microphone array methods include: a fixed beamforming meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0216H04R1/10
CPCG10L21/0208G10L21/0216G10L2021/02087H04R1/1083
Inventor 虞安波
Owner HUITING ACOUSTICS TECH BEIJING CO LTD
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