Echo cancellation model training method and device and echo cancellation method and device

A technology of echo cancellation and training method, applied in the field of signal processing, can solve the problems of limited echo cancellation, leaked echo, etc., and achieve the effects of high echo return loss enhancement, improved cancellation, and high signal-to-echo ratio.

Pending Publication Date: 2022-07-12
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In related technologies, echo cancellation can be performed by AEC integrated with deep learning methods, but the amount of echo cancellation is limited, and the phenomenon of echo leakage is prone to occur.

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  • Echo cancellation model training method and device and echo cancellation method and device
  • Echo cancellation model training method and device and echo cancellation method and device
  • Echo cancellation model training method and device and echo cancellation method and device

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Embodiment Construction

[0049] In order to make those skilled in the art better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0050] It should be noted that the terms "first", "second" and the like in the description and claims of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following examples are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consisten...

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Abstract

The invention relates to an echo cancellation model training method and device and an echo cancellation method and device, and the training method comprises the steps: obtaining a first signal according to a near-end signal; inputting the first signal into an echo cancellation model, and obtaining a second signal based on the output of the echo cancellation model, the second signal being a prediction signal of the first signal after echo cancellation; according to the first signal and the second signal, prediction loss of an echo cancellation model is determined, the prediction loss comprises first prediction loss, and the first prediction loss is calculated based on a residual echo component and a voice signal component separated from the second signal; and adjusting parameters of the echo cancellation model according to the prediction loss. According to the training method and device of the echo cancellation model and the echo cancellation method and device disclosed by the invention, the residual echo can be additionally suppressed, and the echo cancellation amount is improved.

Description

technical field [0001] The present disclosure relates to the field of signal processing, and in particular, to a method and device for training an echo cancellation model and a method and device for echo cancellation. Background technique [0002] When conducting real-time communication with far-end users indoors, the sound from the far-end can be played on the near-end speaker, reflected and propagated in the indoor space, and then re-collected by the near-end microphone to form an acoustic echo. Acoustic Echo Cancellation (AEC) can identify and suppress echo signals, so that remote users cannot hear their own echoes, which greatly improves the audio experience. In the related art, echo cancellation can be performed by AEC incorporating a deep learning method, but the amount of echo cancellation is limited, and the phenomenon of echo leakage is easy to occur. SUMMARY OF THE INVENTION [0003] The present disclosure provides a method and device for training an echo cancel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0216G10L25/30
CPCG10L21/0208G10L21/0216G10L25/30G10L2021/02082
Inventor 赵昊然韩润强刘溪张晨
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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