Noise segment/speech segment determination apparatus

Details Noise segment/speech segment determination apparatus Noise segment/speech segment determination apparatus

2005-10-04

2005-10-04

Ometz, David L. (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

Reexamination Certificate

active

06952670

ABSTRACT:
An extraction section extracts a speech signal having ambient noise superimposed thereon as a data segment having a predetermined duration. An autocorrelation function normalizing section determines normalized autocorrelation function vectors. A normalized autocorrelation function count section counts a given number of normalized autocorrelation function vectors. A noise vector region/speech vector region/undefined vector computation section classifies the normalized autocorrelation function vectors into any of a noise vector region, a speech vector region, or undefined vectors. When the latest normalized autocorrelation function vector acquired by a normalized autocorrelation function vector determination section pertains to the noise vector region, the speech signal is determined to be a noise segment. In contrast, when the latest vector does not pertain to the noise vector region, the input signal is determined to be a speech segment.

REFERENCES:
patent: 4821324 (1989-04-01), Ozawa et al.
patent: 4905285 (1990-02-01), Allen et al.
patent: 4959865 (1990-09-01), Stettiner et al.
patent: 5675702 (1997-10-01), Gerson et al.
patent: 5692104 (1997-11-01), Chow et al.
patent: 5704000 (1997-12-01), Swaminathan et al.
patent: 58-143394 (1983-08-01), None
patent: 3-500347 (1991-01-01), None
patent: 8-294197 (1996-11-01), None
patent: 10-513030 (1998-12-01), None

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