Method and apparatus for coding a noise-suppressed audio signal

Details Method and apparatus for coding a noise-suppressed audio signal Method and apparatus for coding a noise-suppressed audio signal

2008-03-11

2008-03-11

Opsasnick, Michael (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S226000

Reexamination Certificate

active

10278377

ABSTRACT:
An unfiltered frame portion (2) from a second frame (503) is blended together with a filtered frame portion (1) from a first frame (501) to produce a combined frame portion (507). The combined frame portion (507) is then buffered (110) along with the filtered frame (501) for LPC analysis.

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Mermelstein et al, “Nonlinear Filtering of the LPC Residual for Noise Suppression and speech Quality Enhancement”, Speech Coding for Telecommunications Proceedings, 1997, Sep. 7-10; pp. 49-50.

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