Consolidated noise injection in a voice processing system
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United States of America Patent
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Feb 25, 2003
Grant Date -
N/A
app pub date -
Nov 3, 2000
filing date -
Nov 3, 1999
priority date (Note) -
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Abstract
Methods and apparatus for compensating for the background noise modulation caused by the operation of a non-linear processor on an audio signal include a controller that receives operating status information from the non-linear processor and generates a noise reduction control signal. The methods and apparatus further include a noise reduction circuit that receives the noise reduction control signal from the controller. The noise reduction circuit reduces the background noise in the audio signal when a noise reduction control signal is generated by the controller and injects synthesized background noise into the audio signal when a noise reduction control signal is not generated by the controller.
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