Method and system for reduction of quantization-induced...

Details Method and system for reduction of quantization-induced... Method and system for reduction of quantization-induced...

2011-08-30

2011-08-30

McFadden, Susan (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C704S230000

Reexamination Certificate

active

08010371

ABSTRACT:
Systems and methods are provided for ultra-low latency compression. In accordance with one implementation, a method is provided that includes formatting, by a processor, an input audio signal into a plurality of overlapping time-domain blocks, transforming, by a processor, each time-domain block to a transform domain block comprising a plurality of coefficients, and partitioning the coefficients of each transform domain block into signal coefficients and residue coefficients. The method also includes quantizing the signal coefficients for each transform domain block and generating signal quantization indices indicative of such quantization, modeling the residue coefficients for each transform domain block as stochastic noise and generating residue quantization indices indicative of such quantization, and formatting the signal quantization indices and the residue quantization indices for each transform domain block as an output bit stream.

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