Method and apparatus for performing harmonic noise weighting...

Details Method and apparatus for performing harmonic noise weighting... Method and apparatus for performing harmonic noise weighting...

2006-01-03

2006-01-03

McFadden, Susan (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S211000, C704S226000

Reexamination Certificate

active

06983241

ABSTRACT:
To address the need for choosing values of harmonic noise weighting (HNW) coefficient (εp) so that the amount of harmonic noise weighting can be optimized, a method and apparatus for performing harmonic noise weighting in digital speech coders is provided herein. During operation, received speech is analyzed to determine a pitch period. HNW coefficients are then chosen based on the pitch period, and a perceptual noise weighting filter (C(z)) is determined based on the harmonic-noise weighting (HNW) coefficients (εp).

REFERENCES:
patent: 5528723 (1996-06-01), Gerson et al.

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