Invention Application
WO2014172010A1 SYSTEMS AND METHODS FOR ADAPTIVE NOISE CANCELLATION INCLUDING SECONDARY PATH ESTIMATE MONITORING
审中-公开
用于自适应噪声消除的系统和方法，包括二次路径估计监测
- Patent Title: SYSTEMS AND METHODS FOR ADAPTIVE NOISE CANCELLATION INCLUDING SECONDARY PATH ESTIMATE MONITORING
- Patent Title (中): 用于自适应噪声消除的系统和方法，包括二次路径估计监测
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Application No.: PCT/US2014/018027Application Date: 2014-02-24
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Publication No.: WO2014172010A1Publication Date: 2014-10-23
- Inventor: ZHOU, Dayong , LU, Yang , LI, Ning
- Applicant: CIRRUS LOGIC, INC.
- Applicant Address: 2901 Via Fortuna Austin, Texas 78746 US
- Assignee: CIRRUS LOGIC, INC.
- Current Assignee: CIRRUS LOGIC, INC.
- Current Assignee Address: 2901 Via Fortuna Austin, Texas 78746 US
- Agency: PREWITT, Brian K. et al.
- Priority: US61/812,384 20130416; US61/813,426 20130418; US61/818,150 20130501; US13/952,221 20130726
- Main IPC: G10K11/178
- IPC: G10K11/178
Abstract:
In accordance with methods and systems of the present disclosure, a processing circuit may implement at least one of: a feedback filter having a response that generates at least a portion of an anti-noise component from a playback corrected error, the playback corrected error based on a difference between the error microphone signal and a secondary path estimate; and a feedforward filter having a response that generates at least a portion of the anti-noise signal from a reference microphone signal. The processing circuit may also implement a secondary path estimate filter configured to model an electro-acoustic path of a source audio signal and have a response that generates a secondary path estimate from the source audio signal and a secondary path estimate performance monitor for monitoring performance of the secondary path estimate filter in modeling the electro-acoustic path.
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