Microphone echo cancellation method, device, device and computer storage medium

A technology of echo cancellation and microphone, which is applied in the direction of frequency/direction characteristic device, speech analysis, instrument, etc., and can solve the problem of incomplete microphone echo cancellation

Active Publication Date: 2021-02-23
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a microphone echo cancellation method, device, equipment and computer storage medium, aiming to solve the current technical problem of incomplete microphone echo cancellation

Method used

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  • Microphone echo cancellation method, device, device and computer storage medium
  • Microphone echo cancellation method, device, device and computer storage medium
  • Microphone echo cancellation method, device, device and computer storage medium

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Embodiment Construction

[0050] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] Such as figure 1 as shown, figure 1 It is the terminal of the hardware operating environment involved in the solution of the embodiment of the present invention (also called the microphone echo canceling device, wherein the microphone echo canceling device may be composed of a separate microphone echo canceling device, or may be composed of other devices and the microphone echo canceling device Formation) Schematic diagram of the structure.

[0052] The terminal of the embodiment of the present invention can be a fixed terminal or a mobile terminal, such as an intelligent air conditioner with a networking function, an intelligent light, an intelligent power supply, an intelligent speaker, an automatic driving car, a PC (personal computer), a smart phone, a tablet computer , e-book readers, portable computers,...

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Abstract

The invention discloses a microphone echo cancellation method, the method is applied to a terminal, the terminal includes a speaker and a microphone connected by communication, and the microphone includes a main microphone and a secondary microphone; the following steps are included: the speaker receives an audio signal and generates vibration , the speaker vibrates to generate sound waves and cause the casing to vibrate; the main microphone picks up the sound waves to obtain a first signal, the main microphone picks up the casing vibrations to obtain a second signal, and the auxiliary microphone picks up the casing vibrations to obtain a third signal; Eliminate the echo in the first signal according to a preset algorithm, process the second signal according to the third signal, and eliminate the echo in the second signal; The second signal is synthesized and output. The invention also discloses a microphone echo cancellation device, equipment and computer storage medium. The invention improves the accuracy of microphone echo cancellation.

Description

technical field [0001] The invention relates to the field of sound signal processing, in particular to a microphone echo cancellation method, device, equipment and computer storage medium. Background technique [0002] With the development of science and technology and the continuous progress of society, there are more and more applications of terminal equipment. The terminal device collects and plays sound through a microphone and a speaker. When the microphone and the speaker work together, echoes often occur. The echo is caused by the sound of the speaker being fed back to the microphone multiple times. [0003] The traditional echo cancellation is to install an integrated chip in the terminal circuit, transmit the signal to the integrated chip, use a unified algorithm mechanism for debugging, and compare the voice signal with the broadcast sound signal to eliminate it. Such an echo cancellation algorithm will still The effect of echo processing is not complete. Conten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/28G10L21/0216
CPCG10L21/0216G10L2021/02082G10L2021/02165H04R1/2807
Inventor 杨明凯齐永涛赵燕鹏徐敏龙
Owner GOERTEK INC
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