An echo cancellation method based on deep learning

Abstract

The present disclosure discloses a deep learning-based echo cancellation method, device, electronic device, and storage medium, which belong to the technical field of computers. The method includes: extracting acoustic features from received microphone signals, the microphone signals including near-end signals and far-end signals; performing an iterative operation on the acoustic features in a pre-trained recurrent neural network model with long short-term memory , calculate the ratio film of the acoustic feature; use the ratio film to mask the acoustic feature, and synthesize the masked acoustic feature with the phase of the microphone signal to obtain the near-end echo-cancelled Signal. The above-mentioned deep learning-based echo cancellation method and device can realize echo cancellation in the case of background noise, double talk and nonlinear distortion, etc., and greatly improve the echo cancellation effect and applicable scenarios. And no post filter is required, which effectively simplifies electronic equipment and reduces the cost of electronic equipment.

Description

technical field [0001] The present disclosure relates to the technical field of computer applications, and in particular, to a deep learning-based echo cancellation method, device, electronic device, and storage medium. Background technique [0002] In a communication system, when a speaker and a microphone are coupled, the microphone will pick up the signal from the speaker and its reverberation, thereby producing an echo. For example, teleconferencing, speakerphone and mobile communications are all plagued by echoes. [0003] Echo cancellation faces many problems, such as double talk, background noise, and nonlinear distortion. First of all, double talk is a typical dialogue method in a communication system, where speakers at both ends sometimes speak at the same time. However, near-end speech signals will seriously affect the convergence of the adaptation algorithms and may cause them to diverge. Furthermore, the signal received at the microphone contains not only echo...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that the effect of echo cancellation in the related art is not good and a post filter is required, the present disclosure provides an echo cancellation method, device, electronic equipment, and storage medium based on deep learning

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