Intelligent near-end speech detection

Details Intelligent near-end speech detection Intelligent near-end speech detection

1996-06-28

1998-05-12

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

370291, 379411, G10L 918, A04B 323

Patent

active

057522294

ABSTRACT:
The detection and cancellation of echo in a communications system is enhanced by taking advantage of the accumulated knowledge relating to the echo path delay that an adaptive filter acquires as a result of its adaptation process. Such knowledge improves significantly the ability of an associated Near-End-Speech (NES) detector to detect for the presence of near end speech.

REFERENCES:
patent: 5274705 (1993-12-01), Younce et al.
patent: 5463618 (1995-10-01), Furukawa et al.
patent: 5668865 (1997-09-01), Duttweiler et al.
Donald Lars Duttweiler, "A Twelve-Channel Digital Echo Canceler", IEEE Trans. on Communications, vol. COM-26, No. 5, pp. 647-653, May 1978.
Kazuo Murano, Shigeyuki Unagami, and Fumio Amano, "Echo Cancellation and Applications", IEEE Communications Magazine, pp. 49-55, Jan. 1990.

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