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Echo cancellation method and device, electronic equipment and readable storage medium

An echo cancellation and echo technology, applied in the field of acoustics, can solve problems such as poor echo cancellation effect

Active Publication Date: 2021-04-09
BEIJING CENTURY TAL EDUCATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that it is easy to have residual echo, and the echo cancellation effect is poor.

Method used

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  • Echo cancellation method and device, electronic equipment and readable storage medium
  • Echo cancellation method and device, electronic equipment and readable storage medium
  • Echo cancellation method and device, electronic equipment and readable storage medium

Examples

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Embodiment Construction

[0086] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation manners described here are only used to explain relevant content, rather than to limit the present application. In addition, it should be noted that, for ease of description, only parts relevant to the present application are shown in the drawings.

[0087] It should be noted that, in the case of no conflict, the implementations in the present application and the features in the implementations can be combined with each other. The following will describe the application in detail with reference to the drawings to be trained and the embodiments.

[0088] The echo cancellation method and device provided in the embodiments of the present application can be applied in a voice interaction scenario, where the voice interaction scenario can be a user talking with a landline, a user talking wit...

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Abstract

The invention provides an echo cancellation method and device, electronic equipment and a readable storage medium, and aims to improve the echo cancellation effect. The method comprises the following steps: acquiring a to-be-processed mixed voice signal and a to-be-processed far-end voice signal; inputting the to-be-processed mixed voice signal into a pre-trained network model to obtain a first feature vector; inputting a far-end voice signal to be processed into the network model to obtain a second feature vector; inputting the first feature vector and the second feature vector into a pre-trained attention model to obtain a third feature vector; and obtaining a near-end voice signal after echo cancellation according to the first feature vector and the third feature vector. The echo cancellation method and device, the electronic equipment and the readable storage medium provided by the invention have a better echo cancellation effect.

Description

technical field [0001] The present application relates to the field of acoustics, and in particular to an echo cancellation method, device, electronic equipment and readable storage medium. Background technique [0002] In scenarios such as voice interaction and voice calls, the performance of echo cancellation directly affects the back-end voice recognition rate and user listening experience, and is the key core technology of voice technology. [0003] The existing technology uses echo cancellation derived from web real-time communication technology (Web Real-Time Communication, abbreviated as: WebRTC), namely: first use the delay estimation algorithm to align the near-end voice data and the far-end voice data, and then use the adaptive filter Echoes are estimated, thereby canceling linear echoes. The disadvantage is that residual echo is easy to exist, and the echo cancellation effect is poor. Contents of the invention [0004] In order to solve at least one of the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0216G10L21/0208
CPCG10L21/0208G10L21/0216G10L2021/02082
Inventor 马路杨嵩
Owner BEIJING CENTURY TAL EDUCATION TECH CO LTD
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