Title:
VOICE PROCESSING METHOD AND APPARATUS AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/223603
Kind Code:
A1
Abstract:
Provided is a voice processing method and apparatus, the method comprising: acquiring at least one sequence of near-end signals by means of a microphone array (S100); performing echo cancellation processing on at least one near-end signal to obtain at least one residual echo signal (S200); performing beam forming processing on each near-end signal and the at least one residual echo signal (S300); performing nonlinear echo suppression processing on at least one near-end signal and the at least one residual echo signal after beam forming processing to obtain a nonlinear echo suppression output signal (S400); and performing noise reduction and gain processing on the nonlinear echo suppression output signal (S500). Further provided are an echo suppression method and apparatus, an echo compression method and apparatus, a double talk state monitoring method and apparatus, and an electronic device. The signal to noise ratio can thus be improved.
Inventors:
ZHOU SHURAN (CN)
LI ZHIFEI (CN)
LI ZHIFEI (CN)
Application Number:
PCT/CN2019/087301
Publication Date:
November 28, 2019
Filing Date:
May 16, 2019
Export Citation:
Assignee:
MOBVOI INFORMATION TECH COMPANY LIMITED (CN)
International Classes:
G10L21/0208; G10L21/0216; G10L21/0264; G10L21/0308
Domestic Patent References:
| WO2009029076A1 | 2009-03-05 |
Foreign References:
| CN108766456A | 2018-11-06 | |||
| CN108831496A | 2018-11-16 | |||
| CN108831497A | 2018-11-16 | |||
| CN108806713A | 2018-11-13 | |||
| CN102131014A | 2011-07-20 | |||
| CN104835502A | 2015-08-12 | |||
| CN107770683A | 2018-03-06 | |||
| CN106657507A | 2017-05-10 | |||
| CN102625946A | 2012-08-01 |
Attorney, Agent or Firm:
WITTPAT INTELLECTUAL PROPERTY LAW FIRM (CN)
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