Method for robust classification in speech coding

Details Method for robust classification in speech coding Method for robust classification in speech coding

2006-01-03

2006-01-03

Azad, Abul K. (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S226000, C704S233000

Reexamination Certificate

active

06983242

ABSTRACT:
A method for robust speech classification in speech coding and, in particular, for robust classification in the presence of background noise is herein provided. A noise-free set of parameters is derived, thereby reducing the adverse effects of background noise on the classification process. The speech signal is identified as speech or non-speech. A set of basic parameters is derived for the speech frame, then the noise component of the parameters is estimated and removed. If the frame is non-speech, the noise estimations are updated. All the parameters are then compared against a predetermined set of thresholds. Because the background noise has been removed from the parameters, the set of thresholds is largely unaffected by any changes in the noise. The frame is classified into any number of classes, thereby emphasizing the perceptually important features by performing perceptual matching rather than waveform matching.

REFERENCES:
patent: 5459814 (1995-10-01), Gupta et al.
patent: 5491771 (1996-02-01), Gupta et al.
patent: 5633982 (1997-05-01), Ganesan et al.
patent: 6003001 (1999-12-01), Maeda
patent: 6233550 (2001-05-01), Gersho et al.
patent: 6240386 (2001-05-01), Thyssen et al.
patent: 6453289 (2002-09-01), Ertem et al.
patent: 6636829 (2003-10-01), Benyassine et al.
Applicant is not aware of any patents, publications, or other information for consideration by the Patent Office.

Affiliated with

Also associated with

Rating

Method for robust classification in speech coding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for robust classification in speech coding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for robust classification in speech coding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3557293