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System and method for adaptive noise cancellation including dynamic bias of coefficients of adaptive noise cancellation system
System and method for adaptive noise cancellation including dynamic bias of coefficients of adaptive noise cancellation system
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机译:包括自适应噪声消除系统的系数的动态偏置的自适应噪声消除的系统和方法
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摘要
In accordance with method and systems of the present disclosure, a processing circuit may implement an adaptive filter having a response that generates the anti-noise signal from the reference microphone signal to reduce the presence of the ambient audio sounds heard by the listener, a coefficient control block that shapes the response of the adaptive filter in conformity with the error microphone signal and the reference microphone signal by adapting the response of the adaptive filter to minimize the ambient audio sounds in the error microphone signal, and a coefficient bias control block which biases coefficients of the coefficient control block towards zero in a range of frequencies outside of a frequency response of the source audio signal.
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