Adaptive voice enhancing system

Details Adaptive voice enhancing system Adaptive voice enhancing system

1996-11-15

1998-05-05

Kuntz, Curtis

Electrical audio signal processing systems and devices

Noise or distortion suppression

381 66, 381 72, 381 942, 381 947, H04B 1500

Patent

active

057487529

ABSTRACT:
A transducer/transmitter captures not only the acoustic signal in the voice band, as in the prior art, but also an acoustic signal that includes audio signals outside the voice band; preferably above the voice band, up to approximately 20k Hertz. A band pass filter separates the transducer signal into two components; a voice signal with overlapping noise in the range of the human voice (e.g. from about 40 Hertz to 8k Hertz) and a component that provides a no voice signal, for example a signal in a no voice band extending from above approximately 8k Hertz to about 20k Hertz.

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Widrow, "Adaptive Filters", Aspects of Network and System Theory, Kalman et al., eds., Holt, Rhinehart & Winston, Inc., 1971, pp. 563-587.

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