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Sound signal processing method, device and equipment

A sound signal processing and sound signal technology, applied in the field of signal processing, can solve the problems of poor noise reduction performance, difficulty in eliminating coherent noise, affecting the effect of sound signal enhancement, etc., to achieve the effect of improving processing performance

Active Publication Date: 2019-09-20
WEIFANG GOERTEK ELECTRONICS CO LTD
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Problems solved by technology

[0003] However, in the transmission environment of sound signals, there will usually be interference from noise sources
If there are multiple coherent noise sources with strong correlations in the transmission environment (for example, multiple channel signals with strong correlations generated when a multi-channel sound playback device plays sound), the transmission band of the sound signal will be affected. In this case, when the received sound signal including coherent noise is processed by beamforming algorithm, it is difficult to eliminate these coherent noise, the noise reduction performance is poor, and it affects the reception Enhancement of the sound signal

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  • Sound signal processing method, device and equipment
  • Sound signal processing method, device and equipment
  • Sound signal processing method, device and equipment

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Embodiment Construction

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0033] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0034] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a sound signal processing method, device and equipment. The method comprises the steps that a first sound signal is received through a first sound receiving device, and a second sound signal is received through a second sound receiving device; a corresponding receiving delay constant exists between the first sound receiving device and the second sound receiving device; at each signal processing moment, delay processing is carried out on the first sound signal according to the receiving delay constant, and a signal correlation coefficient of the first sound signal and the second sound signal after delay processing is obtained; whether the first sound signal and the second sound signal contain coherent noise signals or not is detected according to the signal correlation coefficient of the first sound signal and the second sound signal after delay processing; and when the first sound signal and the second sound signal comprise coherent noise signals, the coherent noise signals are filtered out from the first sound signal and the second sound signal, and a target sound signal at a corresponding signal processing moment is obtained and output.

Description

technical field [0001] The present invention relates to the technical field of signal processing, and more specifically, to a sound signal processing method, device and equipment. Background technique [0002] A microphone array composed of multiple microphones is used to receive sound signals from the same sound source, and the received sound signals can be processed by a beamforming algorithm. The beamforming algorithm is mainly based on the stability of the sound wave transmission speed and the fixity of the relative distance between the microphones in the microphone array, using the time difference and phase difference between the arrival of the sound signal transmission to the two microphones, and extracting the correlation between the signals received by the two microphones. The stronger parts are merged to achieve the effect of sound signal enhancement and signal noise reduction. [0003] However, in the transmission environment of sound signals, interference from no...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00G06F3/16
CPCH04R3/00G06F3/165H04R1/406H04R3/005H04R2201/401H04R2430/20H04R29/005H04R2410/01
Inventor 张晓红
Owner WEIFANG GOERTEK ELECTRONICS CO LTD
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