Invention Grant
- Patent Title: Method and apparatus for recognizing wind noise of earphone, and earphone
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Application No.: US17645971Application Date: 2021-12-24
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Publication No.: US11722818B2Publication Date: 2023-08-08
- Inventor: Jiudong Wang , Song Liu
- Applicant: Beijing Xiaoniao Tingting Technology Co., LTD.
- Applicant Address: CN Beijing
- Assignee: LITTLE BIRD CO., LTD
- Current Assignee: LITTLE BIRD CO., LTD
- Current Assignee Address: CN Beijing
- Agency: Syncoda LLC
- Agent Feng Ma
- Priority: CN 2011559834.8 2020.12.25
- Main IPC: H04R1/10
- IPC: H04R1/10 ; H04R3/00

Abstract:
An earphone includes a feedforward microphone located outside ear and a feedback microphone located inside ear. A method for recognizing wind noise of the earphone includes: feedforward microphone signal collected by feedforward microphone and feedback microphone signal collected by feedback microphone are acquired; Fourier transform is performed on feedforward and feedback microphone signals to obtain a feedforward microphone frequency domain signal and a feedback microphone frequency domain signal; inverse feedback filtering processing is performed on the feedback microphone frequency domain signal to obtain an inverse feedback filtering processing result; inverse feedforward filtering processing is performed on the feedforward microphone frequency domain signal and the inverse feedback filtering processing result to obtain an inverse hybrid filtering processing result; and a wind noise recognition result of the earphone is obtained based on an interrelationship between the inverse feedback filtering processing result and the inverse hybrid filtering processing result.
Public/Granted literature
- US20220210552A1 METHOD AND APPARATUS FOR RECOGNIZING WIND NOISE OF EARPHONE, AND EARPHONE Public/Granted day:2022-06-30
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