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Audio signal processing method and device thereof

An audio signal processing and audio signal technology, applied in voice analysis, instruments, etc., to improve the quality of voice communication, improve the effect of echo cancellation, and eliminate the effect of linear and nonlinear echo signals

Active Publication Date: 2021-09-07
BEIJING XIAOMI MOBILE SOFTWARE CO LTD +1
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Problems solved by technology

[0003] In order to solve the problem of echo cancellation during voice communication, the embodiments of the present disclosure provide an audio signal processing method, device, electronic equipment and storage medium

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  • Audio signal processing method and device thereof
  • Audio signal processing method and device thereof
  • Audio signal processing method and device thereof

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Embodiment Construction

[0064]The technical solutions of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described implementations are part of the implementations of the present disclosure, but not all of them. Based on the implementation manners in the present disclosure, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure. In addition, the technical features involved in different embodiments of the present disclosure described below may be combined with each other as long as they do not constitute a conflict with each other.

[0065] In the voice communication LEM (Loudspeaker-Enclosure-Microphone, speaker-venue-microphone) system, due to the coupling between the speaker and the microphone, the far-end signal played by the speaker will be received by the microphone and transmitted to the far-end, f...

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Abstract

The invention relates to the technical field of voice communication, in particular to an audio signal processing method and a device thereof. The audio signal processing method comprises the following steps: acquiring a first audio signal picked up by a first microphone and a second audio signal picked up by a second microphone; wherein each of the first audio signal and the second audio signal comprises an echo signal generated by playing a reference signal by a loudspeaker; respectively carrying out linear filtering processing on the first audio signal and the second audio signal to obtain a first residual signal and a second residual signal; and performing nonlinear filtering processing on the second residual signal according to the first residual signal to obtain a target voice signal. According to the method, linear and nonlinear echo signals can be eliminated, the echo elimination effect is improved, near-end voice signals are approximately lossless, and the voice communication quality is improved.

Description

technical field [0001] The present disclosure relates to the technical field of voice communication, and in particular to an audio signal processing method and device. Background technique [0002] For the field of voice communication, after the near-end speaker plays the sound transmitted from the far end, the near-end microphone will pick up the sound again and transmit the sound to the far end, that is, produce an acoustic echo. Echo can seriously affect call quality, so echo cancellation is an important research direction for voice communication. Contents of the invention [0003] In order to solve the problem of echo cancellation during voice communication, embodiments of the present disclosure provide an audio signal processing method, device, electronic equipment, and storage medium. [0004] In a first aspect, an embodiment of the present disclosure provides an audio signal processing method, including: [0005] Acquiring a first audio signal picked up by the fir...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0216G10L19/26
CPCG10L21/0208G10L21/0216G10L19/26G10L2021/02082G10L2021/02165
Inventor 操陈斌步兵
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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