Invention Grant
- Patent Title: Detection and suppression of wind noise in microphone signals
- Patent Title (中): 麦克风信号中风噪声的检测和抑制
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Application No.: US11925323Application Date: 2007-10-26
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Publication No.: US08194881B2Publication Date: 2012-06-05
- Inventor: Tim Haulick , Markus Buck , Phillip A. Hetherington , Klaus Haindl
- Applicant: Tim Haulick , Markus Buck , Phillip A. Hetherington , Klaus Haindl
- Applicant Address: US MA Burlington
- Assignee: Nuance Communications, Inc.
- Current Assignee: Nuance Communications, Inc.
- Current Assignee Address: US MA Burlington
- Agency: Sunstein Kann Murphy & Timbers LLP
- Main IPC: H04B15/00
- IPC: H04B15/00 ; H04R3/00 ; H04R25/00

Abstract:
To reliably and consistently detect desirable sounds, a system detects the presence of wind noise based on the power levels of audio signals. A first transducer detects sound originating from a first direction and a second transducer detects sound originating from a second direction. The power levels of the sound are compared. When the power level of the sound received from the second transducer is less than the power level of the sound received from the first transducer by a predetermined value, wind noise may be present. A signal processor may generate an output from one or a combination of the audio signals, based on a wind noise detection.
Public/Granted literature
- US20080226098A1 DETECTION AND SUPPRESSION OF WIND NOISE IN MICROPHONE SIGNALS Public/Granted day:2008-09-18
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