Title:
AUTOMATIC CALIBRATION METHOD, DEVICE AND APPARATUS FOR MICROPHONE ARRAY AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/125522
Kind Code:
A1
Abstract:
The present application discloses an automatic calibration method, device and apparatus for microphone array and a storage medium. The method comprises the following steps: obtaining digital audio data after respective channels of a microphone array performs preprocessing on a picked-up benchmark audio signal; calculating audio signal energy values corresponding to respective channels according to the digital audio data; detecting whether the audio signal energy values satisfy a preset consistency condition; if the audio signal energy values do not satisfy the preset consistency condition, adjusting gain values of respective channels so as to make the audio signal energy values satisfy the preset consistency condition.
Inventors:
SUN MING (CN)
Application Number:
PCT/CN2019/124639
Publication Date:
June 25, 2020
Filing Date:
December 11, 2019
Export Citation:
Assignee:
SHENZHEN TCL NEW TECH CO LTD (CN)
International Classes:
H04R29/00
Foreign References:
| CN109451415A | 2019-03-08 | |||
| CN106340305A | 2017-01-18 | |||
| CN107180642A | 2017-09-19 | |||
| CN103929707A | 2014-07-16 | |||
| US20110051953A1 | 2011-03-03 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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