Title:
WIND NOISE PROCESSING METHOD, DEVICE, AND SYSTEM EMPLOYING MULTIPLE MICROPHONES, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/097820
Kind Code:
A1
Abstract:
The present application provides a wind noise processing method, device, and system employing multiple microphones, and a storage medium. The method comprises: obtaining first digital signals respectively from K microphones, K being an integer greater than 1; employing a separate processing technique on each first digital signal, so as to obtain a first-signal transform-domain spectrum and a second-signal transform-domain spectrum; performing wind-noise processing and restoring processing on the first-signal transform-domain spectrum, so as to obtain a third-signal transform-domain spectrum; combining the third-signal transform-domain spectrum and the second-signal transform-domain spectrum, so as to generate a first transform-domain spectrum; and performing restoring processing on the first transform-domain spectrum to obtain a second digital signal. Thus, wind-noise interference can be reduced while also preventing signal distortion.
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Inventors:
WU SHENG (CN)
WANG WENTAO (CN)
BIAN YUNFENG (CN)
XU ZIWEI (CN)
WANG WENTAO (CN)
BIAN YUNFENG (CN)
XU ZIWEI (CN)
Application Number:
PCT/CN2018/115381
Publication Date:
May 22, 2020
Filing Date:
November 14, 2018
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G10L21/02
Foreign References:
| CN107223345A | 2017-09-29 | |||
| CN103219012A | 2013-07-24 | |||
| CN202307119U | 2012-07-04 | |||
| CN108766454A | 2018-11-06 | |||
| CN106251877A | 2016-12-21 | |||
| CN103854660A | 2014-06-11 | |||
| CN101477800A | 2009-07-08 | |||
| US20170078790A1 | 2017-03-16 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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