发明公开
- 专利标题： SYSTEMS AND METHODS FOR HYBRID ADAPTIVE NOISE CANCELLATION
- 专利标题（中）： 系统和方法混合自适应降噪
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申请号： EP14710420.2申请日： 2014-02-20
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公开(公告)号： EP2987160A1公开(公告)日： 2016-02-24
- 发明人: ALDERSON, Jeffrey D.
- 申请人： Cirrus Logic, Inc.
- 申请人地址： 800 West 6th Street Austin, TX 78701 US
- 专利权人： Cirrus Logic, Inc.
- 当前专利权人： Cirrus Logic, Inc.
- 当前专利权人地址： 800 West 6th Street Austin, TX 78701 US
- 代理机构： Käck, Stefan
- 优先权： US201361812384P 20130416; US201361813426P 20130418; US201361818150P 20130501; US201313948566 20130723
- 国际公布： WO2014172006 20141023
- 主分类号： G10K11/178
- IPC分类号： G10K11/178
摘要：
In accordance with methods and systems of the present disclosure, a processing circuit may implement a feedback filter having a response that generates a feedback anti-noise signal component from a playback corrected error, the playback corrected error based on a difference between an error microphone signal and a secondary path estimate, and wherein the anti-noise signal comprises at least the feedback anti-noise signal component, a secondary path estimate filter configured to model an electro-acoustic path of the source audio signal and have a response that generates a secondary path estimate from the source audio signal, and a secondary coefficient control block that shapes the response of the secondary path estimate adaptive filter in conformity with a source audio signal and the playback corrected error by adapting the response of the secondary path estimate adaptive filter to minimize the playback corrected error.
公开/授权文献
- EP2987160B1 SYSTEMS AND METHODS FOR HYBRID ADAPTIVE NOISE CANCELLATION 公开/授权日：2023-01-11
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