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Active Noise Control Arrangement, Active Noise Control Headphone and Calibration Method
Active Noise Control Arrangement, Active Noise Control Headphone and Calibration Method
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机译:有源噪声控制装置,有源噪声控制耳机和校准方法
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摘要
An active noise control arrangement has a signal input (SI), a microphone input (MI), a signal output (SO) and a digital interface (DI). A signal processing block (SP) coupled to the microphone input (MI) by means of an amplifier (MA) has a digitally adjustable gain and comprises combining means (CM) and a filter (TP). The signal processing block (SP) is configured to generate an output signal at the signal output (SO) as a function of an input signal at the signal input (SI) and an amplified microphone signal. A control block (CB) is coupled to the digital interface (DI) and configured to adjust the gain of the amplifier (MA).
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