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

A technology of echo cancellation and echo signal, which is applied to interconnection devices, two-way sound reinforcement telephone systems, telephone communications, etc. It can solve problems such as ineffective echo cancellation and non-unique adaptive filter solutions, and improve user experience , the effect of eliminating echo

Inactive Publication Date: 2019-10-08
GEER TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional echo cancellation algorithm, when dealing with multi-channel speaker playback, due to the strong correlation of each channel signal, when the adaptive filter processes the signal received by the microphone, it is easy to cause the solution of the adaptive filter to be not unique, so that it cannot Effectively cancels echo

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

[0047] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0049] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0050] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses an echo cancellation method and device, electronic equipment and a readable storage medium. The method comprises the following steps: acquiring a first audio signal received byat least one loudspeaker and a second audio signal received by a microphone; performing delay compensation processing on the first audio signal to obtain a third audio signal; acquiring an amplitudevalue of a transfer function of transferring the audio signal from the loudspeaker to the microphone; by utilizing the third audio signal and the amplitude value of the transfer function, determiningan echo signal generated by the first audio signal in the second audio signal; and cancelling the echo signal from the second audio signal.

Description

technical field [0001] The present invention relates to the technical field of audio signal processing, and more specifically, to an echo cancellation method, an echo cancellation device, an electronic device, and a computer-readable storage medium. Background technique [0002] In the voice system, in order to avoid the impact of the far-end signal echo on the near-end voice quality, an echo cancellation module is generally added. [0003] Traditional echo cancellation algorithm, when dealing with multi-channel speaker playback, due to the strong correlation of each channel signal, when the adaptive filter processes the signal received by the microphone, it is easy to cause the solution of the adaptive filter to be not unique, so that it cannot Effectively cancels echoes. Contents of the invention [0004] An object of the present invention is to provide a new technical solution for echo cancellation. [0005] According to a first aspect of the present invention, a meth...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L21/0264H04M9/08
CPCG10L21/0208G10L21/0264G10L2021/02082H04M9/082
Inventor 铁广朋
Owner GEER TECH CO LTD
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