Invention Grant
- Patent Title: Wind noise mitigation systems and methods
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Application No.: US17002780Application Date: 2020-08-26
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Publication No.: US11562724B2Publication Date: 2023-01-24
- Inventor: Andrew D. Unruh , Thomas E. Miller , Aidan Meacham
- Applicant: Knowles Electronics, LLC
- Applicant Address: US IL Itasca
- Assignee: Knowles Electronics, LLC
- Current Assignee: Knowles Electronics, LLC
- Current Assignee Address: US IL Itasca
- Agency: Loppnow & Chapa
- Agent Matthew C. Loppnow
- Main IPC: G10K11/00
- IPC: G10K11/00 ; H04R3/00 ; G10L21/0208

Abstract:
A system and method can provide nose, such as wind noise, mitigation and/or microphone blending. Some methods may include sampling a sound signal from a plurality of microphones to generate a frame comprising a plurality of time-frequency tiles of the sound signal, each time-frequency tile including respective values of at least one feature from the plurality of microphones, comparing the respective values of the at least one feature to determine whether each time-frequency tile satisfies a similarity threshold, and flagging each time-frequency tile as noise if it fails to satisfy the similarity threshold, grouping the plurality of time-frequency tiles into sets of frequency-adjacent time-frequency tiles, and for each set of frequency-adjacent time-frequency tiles in the frame: counting a number of flagged time-frequency tiles, and attenuating all of the time-frequency tiles in the each set if the number exceeds a noise bin count threshold to thereby reduce noise in the sound signal.
Public/Granted literature
- US20210065670A1 WIND NOISE MITIGATION SYSTEMS AND METHODS Public/Granted day:2021-03-04
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