Invention Grant
- Patent Title: Method and apparatus for suppressing wind noise
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Application No.: US15177807Application Date: 2016-06-09
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Publication No.: US09916841B2Publication Date: 2018-03-13
- Inventor: Phillip Alan Hetherington , Xueman Li , Pierre Zakarauskas
- Applicant: 2236008 Ontario Inc.
- Applicant Address: CA Waterloo, Ontario
- Assignee: 2236008 Ontario Inc.
- Current Assignee: 2236008 Ontario Inc.
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Brinks Gilson & Lione
- Main IPC: G10L21/0232
- IPC: G10L21/0232 ; H04B15/00 ; G10L21/0208 ; G10L21/0264 ; G10L21/0216

Abstract:
The invention includes a method, apparatus, and computer program to selectively suppress wind noise while preserving narrow-band signals in acoustic data. Sound from one or several microphones is digitized into binary data. A time-frequency transform is applied to the data to produce a series of spectra. The spectra are analyzed to detect the presence of wind noise and narrow band signals. Wind noise is selectively suppressed while preserving the narrow band signals. The narrow band signal is interpolated through the times and frequencies when it is masked by the wind noise. A time series is then synthesized from the signal spectral estimate that can be listened to. This invention overcomes prior art limitations that require more than one microphone and an independent measurement of wind speed. Its application results in good-quality speech from data severely degraded by wind noise.
Public/Granted literature
- US20160343385A1 METHOD AND APPARATUS FOR SUPPRESSING WIND NOISE Public/Granted day:2016-11-24
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