Title:
METHOD FOR ELIMINATING ECHO AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/125325
Kind Code:
A1
Abstract:
A method for eliminating echo, applied to a terminal device. The method comprises: outputting an audio reference signal (201); acquiring an audio input signal, the audio input signal comprising echo of the audio reference signal (202); determining a time delay and an attenuation coefficient of an echo channel according to the echo of the audio reference signal (203); and eliminating echo of an audio content signal according to the time delay and the attenuation coefficient (204). By means of the method, the interference of echo to voice input of a user is eliminated, and the quality of input voice is improved.
Inventors:
ZHANG ZHENHE (CN)
LIU AN (CN)
XIONG ZHANGLIANG (CN)
LIU AN (CN)
XIONG ZHANGLIANG (CN)
Application Number:
PCT/CN2019/120452
Publication Date:
June 25, 2020
Filing Date:
November 23, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G10L21/02
Foreign References:
| CN101114844A | 2008-01-30 | |||
| CN106657507A | 2017-05-10 | |||
| CN101312372A | 2008-11-26 | |||
| CN103391381A | 2013-11-13 | |||
| JPH0837480A | 1996-02-06 |
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