Processing an audio input signal to produce a processed audio output signal
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United States of America Patent
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Jan 10, 2012
Grant Date -
Jul 12, 2007
app pub date -
Dec 13, 2006
filing date -
Dec 22, 2005
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Abstract
An audio input signal is processed to produce a processed audio output signal. An audio input signal is received as an original signal. The audio input signal is dynamically filtered to produce a first stage signal consisting of a selected frequency band of the input signal. Gain applied to the first stage signal is dynamically controlled in response to a control signal to produce a second stage signal. The control signal is derived from the first stage signal. Processing the original signal in combination with the second stage signal to produce a processed audio output signal. Processing the original signal in combination with the second stage signal and the first stage signal to produce a processed audio output signal.
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