Title:
ACTIVE NOISE REDUCTION METHOD AND SYSTEM, AND RELATED APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/016609
Kind Code:
A1
Abstract:
Disclosed in the present application are an active noise reduction method and system, and a related apparatus. The method is applied in an environment to be subjected to noise reduction, and said environment includes a plurality of loudspeakers and at least one microphone. The method comprises: for each of at least one microphone, acquiring a first loudspeaker set corresponding to the microphone, wherein the first loudspeaker set includes at least some loudspeakers, and a transmission error between the at least some loudspeakers and the microphone is not greater than a threshold value; obtaining the current audio signals and a mixed audio signal, which are collected by the microphone, wherein the current audio signals are all audio signals that are received by the microphone, and the mixed audio signal is formed by means of original audio signals, which are sent by the loudspeakers in the first loudspeaker set and are transmitted to the microphone; obtaining an error audio signal on the basis of the current audio signals and the mixed audio signal of the microphone; and obtaining a noise reduction audio signal on the basis of the error audio signal. By means of the method in the present application, a noise reduction effect can be improved, and the noise reduction cost can be reduced.
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Inventors:
LI LONGCHEN (CN)
XU ZHENHONG (CN)
TAO RAN (CN)
MA GUILIN (CN)
LEI QINHUI (CN)
LIU JUNFENG (CN)
XU ZHENHONG (CN)
TAO RAN (CN)
MA GUILIN (CN)
LEI QINHUI (CN)
LIU JUNFENG (CN)
Application Number:
PCT/CN2022/144168
Publication Date:
January 25, 2024
Filing Date:
December 30, 2022
Export Citation:
Assignee:
IFLYTEK SUZHOU TECH CO LTD (CN)
International Classes:
G10L21/0208; G10L21/0216
Domestic Patent References:
| WO2022027208A1 | 2022-02-10 |
Foreign References:
| CN114937460A | 2022-08-23 | |||
| CN108810746A | 2018-11-13 | |||
| CN113421540A | 2021-09-21 | |||
| CN106089361A | 2016-11-09 |
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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