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Vehicular automatic gain control (AGC) microphone system and method for post processing optimization of a microphone signal

机译:车载自动增益控制(AGC)麦克风系统和麦克风信号的后处理优化方法

摘要

A method for processing signals for reducing noise components in a vehicular microphone system (500A) compares (517) a plurality of noise component values (511, 513, 515) for at least one frequency band of plurality of frequency bands. At least one frequency band is then downwardly expanded (521) by a predetermined expansion ratio (523) for providing a noise reduced signal (535) when determining a value is below a predetermined threshold (519).
机译:一种用于减少车​​载麦克风系统( 500 A)中的噪声分量的信号的方法,将( 517 )多个噪声分量值( 511、513, 515 )用于多个频段中的至少一个频段。然后至少一个频带以预定的扩展比( 523 )向下扩展( 521 ),以提供降噪的信号( 535 )当确定值低于预定阈值( 519 )时。

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