Adaptive noise reduction filter with continuously variable sliding bandwidth

An infinite impulse response (IIR) lowpass filter is placed in the audio path of an audio system wherein the upper cutoff frequency of the filter is adaptively controlled based on a comparison between the average audio signal entering the filter and the average audio signal leaving the filter. An ad...

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Bibliographische Detailangaben

Hauptverfasser:	WHITECAR, JOHN ELLIOTT
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CONTROL OF AMPLIFICATION ELECTRICITY
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