Title:
NOISE REDUCTION METHOD AND APPARATUS, EARPHONE DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/045130
Kind Code:
A1
Abstract:
The present application discloses a noise reduction method and apparatus, an earphone device, and a storage medium. The method is applied to an earphone device; the earphone device comprises an active noise reduction circuit, a loudspeaker, a sound outlet hole, and a feedback microphone array; the feedback microphone array comprises multiple feedback microphones; a distribution plane of the feedback microphone array is perpendicular to a connecting line between the loudspeaker and the sound outlet hole, and the center of the feedback microphone array is located on the connecting line. The method comprises: obtaining first noise signals respectively detected by feedback microphones; performing noise reduction processing on the first noise signals by means of an active noise reduction circuit to obtain a noise cancellation signal corresponding to an average signal of the first noise signals; and playing the noise cancellation signal by means of a loudspeaker. According to the present application, the cancellation of the noise at the center of the feedback microphone array can be equivalently implemented, and thus the noise at a human ear can also be cancelled.
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Inventors:
QU ZHENG (CN)
Application Number:
PCT/CN2021/138976
Publication Date:
March 30, 2023
Filing Date:
December 17, 2021
Export Citation:
Assignee:
GOERTEK TECH CO LTD (CN)
International Classes:
H04R1/10
Foreign References:
| CN113676815A | 2021-11-19 | |||
| US20050249355A1 | 2005-11-10 | |||
| CN105900452A | 2016-08-24 | |||
| US8447045B1 | 2013-05-21 | |||
| CN107787589A | 2018-03-09 |
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