Dual adaptive structure for speech enhancement

Details Dual adaptive structure for speech enhancement Dual adaptive structure for speech enhancement

2008-07-18

2010-10-19

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Noise or distortion suppression

Using signal channel and noise channel

C381S092000, C381S071110, C704S233000

Reexamination Certificate

active

07817808

ABSTRACT:
A clear, high quality voice signal with a high signal-to-noise ratio is achieved by use of an adaptive noise reduction scheme with two microphones in close proximity. The method includes the use of two omini directional microphones in a highly directional mode, and then applying an adaptive noise cancellation algorithm to reduce the noise.

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Bernard Widrow and Samuel D. Sterns “Adaptive Signal Processing” 1985, ISBN 81-317-0532-3 Pearson Education, Inc. p. 307 and p. 312.

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