Echo cancellation method, device, conference panel and computer storage medium

A technology of echo cancellation and echo signal, which is applied in the field of conference tablet and computer storage medium, echo cancellation

Active Publication Date: 2019-06-04
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Based on this, the present invention provides an echo cancellation method, device, conference panel and computer storage medium to solve the problem of how to enable the adaptive filter to quickly and accurately determine the appropriate adaptive filter coefficient for the complex voice interaction environment in the related art technical issues

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  • Echo cancellation method, device, conference panel and computer storage medium
  • Echo cancellation method, device, conference panel and computer storage medium
  • Echo cancellation method, device, conference panel and computer storage medium

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Embodiment Construction

[0057] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0058] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

An echo cancellation method and device, a conference tablet computer, and a computer storage medium. The method comprises: obtaining a reference signal inputted to a loudspeaker for playback, and obtaining an acquisition signal of a microphone (201); obtaining coefficients of an adaptive filter, and estimating an echo signal corresponding to the reference signal by using the coefficients of the adaptive filter; cancelling the echo signal from the acquisition signal to obtain a residual signal, and outputting the residual signal (202); and updating the coefficients of the adaptive filter according to the degree of correlation between the residual signal and the reference signal (203). By creatively adjusting the coefficients of the adaptive filter according to the degree of correlation between the residual signal and the reference signal, echo cancellation can be performed to an extremely great extent; moreover, there is only a need to additionally update the coefficients of the adaptive filter on the basis of a conventional algorithm, so that the additional cost is low.

Description

technical field [0001] The present application relates to the technical field of voice processing, and in particular to an echo cancellation method, device, conference panel and computer storage medium. Background technique [0002] In scenarios involving voice interaction such as teleconferencing systems, in-vehicle systems, IP phones, and human-computer interaction, the echo phenomenon usually occurs. Such as Figure 1A As shown, it is a schematic diagram of a voice interaction scene in the related art. User A and user B conduct a conference call, and the voice of user A is collected by the microphone A2, and transmitted by the electronic device A1 to the electronic device on the user B side through the network. B1, the electronic device B1 plays the voice of the user A through the speaker B3. At this time, user B is also talking, and when the microphone B2 collects voice signals, it will not only collect the voice of user B, but also the voice of user A played by the spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0208G10L21/0232G10L21/0264G10L21/0216G10L25/21
CPCH04M9/08G10L21/0208G10L21/0216G10L21/0232G10L21/0264G10L25/21G10L2021/02082G10L2021/02163
Inventor 刘荣程雪峰
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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