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A signal processing method, device and computer storage medium

A signal processing and audio signal technology, applied in voice analysis, instruments, sensor components, etc., can solve the problem of reducing the computing workload of multiple microphones, achieve the effect of solving the echo and howling phenomenon and reducing the computing workload

Active Publication Date: 2022-07-15
XIAN ZHONGXING NEW SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a signal processing method, device and computer storage medium, which effectively solves the echo and howling phenomenon that is easily generated when the high-frequency resonance peak of the speaker or microphone is low, and also reduces Reduced computational effort in multi-microphone designs

Method used

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  • A signal processing method, device and computer storage medium
  • A signal processing method, device and computer storage medium
  • A signal processing method, device and computer storage medium

Examples

Experimental program
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Embodiment 1

[0059] see Figure 8 , which shows a signal processing method provided by an embodiment of the present invention. The method is applied to a signal processing apparatus having at least one speaker and at least one microphone, and the method may include:

[0060] S801: Receive a first audio signal and play the first audio signal by the at least one speaker;

[0061] S802: Acquire at least one echo estimation signal corresponding to the first audio signal according to at least one speaker model, at least one microphone model, and the first audio signal; wherein, the at least one speaker model is based on the at least one speaker model obtained, the at least one microphone model is obtained based on the at least one microphone;

[0062] S803: Use the at least one microphone to receive a second audio signal; wherein the second audio signal includes an echo signal generated by the first audio signal output by the at least one speaker and received by the at least one microphone;

...

Embodiment 2

[0106] Based on the same inventive concept as the previous embodiments, see Figure 13 , which shows a detailed flow of a signal processing method provided by an embodiment of the present invention, combined with Figure 10 For an application example of the circuit structure 100 with four speakers and a single microphone shown, the detailed flow may include:

[0107] S1301: extracting a digital signal from the front end of the speaker group 1001 to obtain a first audio signal;

[0108] S1302: Input the first audio signal into the first speaker model 1003a, the second speaker model 1003b, the third speaker model 1003c and the fourth speaker model 1003d respectively for acoustic response processing, and obtain the acoustic response signal of each speaker;

[0109] S1303: Obtain a reference signal of each speaker according to the acoustic response signal of each speaker in the speaker group 1001 and the first delay and attenuation information corresponding to the acoustic respon...

Embodiment 3

[0178] Based on the same inventive concept as the previous embodiments, see Figure 21 , which shows the composition of an information processing apparatus 210 provided by an embodiment of the present invention. The signal processing apparatus 210 may include: at least one speaker 2101 , at least one microphone 2102 , a first receiving part 2103 , and a first acquiring part 2104 , the second receiving part 2105 and the second acquiring part 2106, wherein,

[0179] The first receiving part 2103 is configured to receive a first audio signal and play the first audio signal by the at least one speaker;

[0180] The first obtaining part 2104 is configured to obtain at least one echo estimation signal corresponding to the first audio signal according to at least one speaker model, at least one microphone model and the first audio signal; wherein the at least one speaker a model is derived based on the at least one speaker, and the at least one microphone model is derived based on t...

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Abstract

Embodiments of the present invention disclose a signal processing method, device, and computer storage medium, by receiving a first audio signal and playing the first audio signal by at least one speaker; according to at least one speaker model, at least one microphone model, and For the first audio signal, obtain at least one echo estimation signal corresponding to the first audio signal; wherein, the at least one speaker model is obtained based on at least one speaker, and the at least one microphone model is obtained based on at least one microphone using at least one microphone to receive a second audio signal; wherein the second audio signal includes an echo signal generated by the first audio signal output by the at least one speaker and received by the at least one microphone; At least one echo estimation signal corresponding to the first audio signal is subtracted from the second audio signal to obtain an echo-processed audio signal.

Description

technical field [0001] The present invention relates to the technical field of audio signal processing, and in particular, to a signal processing method, device and computer storage medium. Background technique [0002] During a call, people can sometimes hear their own voice, mainly because the sound played by the other party's speaker is received by its microphone (Microphone, MIC) and transmitted back, which is what people usually call echo, which is made of acoustic caused by the reasons. Therefore, in scenarios involving speakers and MIC duplex, there is generally an echo phenomenon, such as current terminal calls, personal computer (Personal Computer, PC) Internet calls, Personal Digital Assistant (Personal Digital Assistant, PDA) Internet calls, side Recording and broadcasting scenes, etc. [0003] Echo cancellation technology, as the name implies, is a technology that processes the sound played by the speakers received by the MIC, and only retains the sound played ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2420/03H04M9/08G10L21/0216
Inventor 崔腾飞
Owner XIAN ZHONGXING NEW SOFTWARE