Method, medium, and apparatus encoding scalable wideband...

Details Method, medium, and apparatus encoding scalable wideband... Method, medium, and apparatus encoding scalable wideband...

2011-07-05

2011-07-05

Abebe, Daniel D (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S220000, C704S500000, C375S240230

Reexamination Certificate

active

07974839

ABSTRACT:
Provided is a method and apparatus for encoding a scalable wideband audio signal, the method including: filtering a voiced signal by performing linear prediction on the voiced signal and modulating the filtered signal; encoding the modulated signal in the time domain, and outputting a core layer encoding result of the voiced signal; subtracting a signal obtained by decoding the core layer encoding result from the modulated signal and outputting an error signal; and encoding the error signal and outputting an enhancement layer encoding result of the voiced signal.

REFERENCES:
patent: 5495555 (1996-02-01), Swaminathan
patent: 5596676 (1997-01-01), Swaminathan et al.
patent: 5890108 (1999-03-01), Yeldener
patent: 7587312 (2009-09-01), Kim
patent: 2008/0052068 (2008-02-01), Aguilar et al.

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