Title:
ECHO CANCELLATION METHOD AND TERMINAL, AND COMPUTER STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2018/006856
Kind Code:
A1
Abstract:
Disclosed are an echo cancellation method and terminal, and a computer storage medium. The method comprises: caching at least one collected frame of a first voice signal, wherein the at least one frame of the first voice signal comprises an echo signal; when preprocessing the at least one frame of the signal, within a first timing period, respectively acquiring the at least one frame of the first voice signal from the cache, and acquiring at least one frame of a reference signal matching the at least one frame of the first voice signal from a reference signal queue, so that a time delay estimation value between each frame of the first voice signal and a corresponding reference signal is stabilized within a pre-set range; and using the at least one frame of the reference signal to perform echo cancellation processing on the echo signal in the at least one frame of the first voice signal to obtain a second voice signal, and outputting the second voice signal.
Inventors:
QIAO NINGBO (CN)
Application Number:
PCT/CN2017/092079
Publication Date:
January 11, 2018
Filing Date:
July 06, 2017
Export Citation:
Assignee:
TENCENT TECH SHENZHEN CO LTD (CN)
International Classes:
H04M1/58; H04M9/08
Foreign References:
| CN103312913A | 2013-09-18 | |||
| CN104902116A | 2015-09-09 | |||
| CN101321201A | 2008-12-10 | |||
| CN102387272A | 2012-03-21 | |||
| US6434235B1 | 2002-08-13 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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