Title:
AUDIO NOISE REDUCTION METHOD AND AUDIO MONITORING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/070786
Kind Code:
A1
Abstract:
Provided in the present application are an audio noise reduction method and an audio monitoring apparatus. The audio noise reduction method comprises: when a microprocessor does not receive a remote audio signal from a remote interface, controlling a loudspeaker to collect a background noise signal, so as to control an audio monitoring apparatus to enter a noise cancellation mode; and in the noise cancellation mode, the microprocessor performing, according to the background noise signal collected by the loudspeaker, noise cancellation on a human voice signal which is collected by a microphone, so as to acquire a target sound signal. Compared with the prior art, in the present application, a loudspeaker is used for forming a path of noise reference signals, so as to achieve the aim of noise cancellation, such that the arrangement of noise reduction microphones is reduced, and a better noise reduction effect can be realized at lower costs.
Inventors:
ZHAO JIANGTAO (CN)
Application Number:
PCT/CN2021/132411
Publication Date:
May 04, 2023
Filing Date:
November 23, 2021
Export Citation:
Assignee:
GOERTEK TECH CO LTD (CN)
International Classes:
G10L21/0208
Foreign References:
| CN104380698A | 2015-02-25 | |||
| CN109068215A | 2018-12-21 | |||
| CN107920157A | 2018-04-17 | |||
| CN204117590U | 2015-01-21 | |||
| US20040066940A1 | 2004-04-08 |
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