Invention Grant
- Patent Title: Annoyance noise suppression
- Patent Title (中): 烦恼噪音抑制
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Application No.: US14941458Application Date: 2015-11-13
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Publication No.: US09589574B1Publication Date: 2017-03-07
- Inventor: Gints Klimanis , Anthony Parks
- Applicant: Doppler Labs, Inc.
- Applicant Address: US CA San Francisco
- Assignee: Doppler Labs, Inc.
- Current Assignee: Doppler Labs, Inc.
- Current Assignee Address: US CA San Francisco
- Agency: Van Pelt, Yi and James LLP
- Main IPC: A61F11/06
- IPC: A61F11/06 ; 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.
Information query
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