Invention Grant
- Patent Title: Annoyance noise suppression
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Application No.: US16735601Application Date: 2020-01-06
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Publication No.: US11218796B2Publication Date: 2022-01-04
- Inventor: Gints Klimanis , Anthony Parks , Richard Fritz Lanman, III , Noah Kraft , Matthew J. Jaffe , Jeffrey Ross Baker
- Applicant: Dolby Laboratories Licensing Corporation
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- Main IPC: H04R1/10
- IPC: H04R1/10 ; G10L21/0208 ; G10L21/0232 ; G10L25/84 ; G10L25/90 ; H04R29/00 ; G10L21/0216

Abstract:
Personal audio systems and methods are disclosed. A personal audio system includes a voice activity detector to determine whether or not an ambient audio stream contains voice activity, a pitch estimator to determine a frequency of a fundamental component of an annoyance noise contained in the ambient audio stream, and a filter bank to attenuate the fundamental component and at least one harmonic component of the annoyance noise to generate a personal audio stream. The filter bank implements a first filter function when the ambient audio stream does not contain voice activity, or a second filter function when the ambient audio stream contains voice activity.
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