Invention Grant
- Patent Title: System and method of wind and noise reduction for a headphone
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Application No.: US15607051Application Date: 2017-05-26
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Publication No.: US10341759B2Publication Date: 2019-07-02
- Inventor: Sorin V. Dusan , Tom-Davy W. Saux , Vladan Bajic
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Womble Bond Dickinson (US) LLP
- Main IPC: G10L21/0208
- IPC: G10L21/0208 ; G10L21/0216 ; H04R1/10 ; G10K11/178

Abstract:
Method of wind and noise reduction for headphones starts by receiving acoustic signals from first external microphone included on the outside of earcup's housing. Acoustic signals are received from internal microphone included inside earcup's housing. ANC downlink corrector processes downlink signal to generate echo estimate of speaker signal. First summator removes echo estimate of speaker signal from acoustic signals from internal microphone to generate corrected internal microphone signal. Spectral combiner performs spectral mixing of corrected internal microphone signal with acoustic signals from first external microphone to generate mixed signal. Lower frequency portion of mixed signal includes corresponding lower frequency portion of corrected internal microphone signal, and higher frequency portion of mixed signal includes corresponding higher frequency portion of acoustic signals from first external microphone. Other embodiments are also described.
Public/Granted literature
- US20180343514A1 SYSTEM AND METHOD OF WIND AND NOISE REDUCTION FOR A HEADPHONE Public/Granted day:2018-11-29
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