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Echo cancellation method and electronic equipment

An electronic device and echo cancellation technology, applied in the field of communication, can solve the problems such as the non-linear part of the echo cannot be effectively eliminated, and the effect of eliminating the echo is poor.

Pending Publication Date: 2020-07-03
SOUNDAI TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an echo cancellation method and electronic equipment to solve the problem in the prior art that the AEC algorithm cannot effectively eliminate the nonlinear part of the echo, and the effect of using the AEC algorithm to eliminate the echo is poor

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  • Echo cancellation method and electronic equipment
  • Echo cancellation method and electronic equipment

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] In the embodiment of the present invention, electronic devices include but are not limited to mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted mobile terminals, wearable devices, smart home devices, and pedometers. For example, the electronic device may be a smart speaker or a smart TV.

[0024] see figure 1 , figure 1 is a flow chart of an echo cancellation method provided by an embodiment of the present...

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Abstract

The invention provides an echo cancellation method and electronic equipment, wherein the method comprises the steps: processing a to-be-processed voice signal at a current moment by an AEC algorithm,and obtaining a first voice signal; inputting the first voice signal into a pre-trained neural network model to obtain a ratio film of the first voice signal; and processing the first voice signal byusing the ratio film, and adjusting the parameters of the AEC algorithm based on the ratio film so as to process the to-be-processed voice signal at the next moment based on the AEC algorithm after parameter adjustment. According to the embodiment of the invention, the echo cancellation effect can be improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an echo cancellation method and electronic equipment. Background technique [0002] In voice interaction systems such as smart speakers and telephones, when the speaker and the microphone are coupled, the microphone will pick up the signal from the speaker and its reverberation, which will add echo to the voice signal, and the voice signal mixed with echo will reduce the sound quality of the voice. The user experience of the receiver of the signal, therefore, needs to cancel the echo in the voice signal. [0003] At present, the AEC (Acoustic Echo Canceller) algorithm is mainly used for echo cancellation. However, the AEC algorithm is a linear algorithm that can eliminate the linear part of the echo, but cannot effectively eliminate the nonlinear part of the echo. Therefore, the AEC algorithm is used to eliminate the echo. Echo is less effective. Contents of the inventio...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L25/30G06N3/08
CPCG10L21/0208G10L25/30G06N3/08G10L2021/02082Y02D30/70
Inventor 吴俊冯大航陈孝良
Owner SOUNDAI TECH CO LTD
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