Audio coding via creation of sinusoidal tracks and phase...

Details Audio coding via creation of sinusoidal tracks and phase... Audio coding via creation of sinusoidal tracks and phase...

2003-11-06

2010-02-16

Dorvil, Richemond (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S200000, C704S200100, C704S205000, C704S222000, C704S230000

Reexamination Certificate

active

07664633

ABSTRACT:
Coding of an audio signal represented by a respective set of sampled signal values for each of a plurality of sequential segments is disclosed. The sampled signal values are analyzed (40) to determine one or more sinusoidal components for each of the plurality of sequential segments. The sinusoidal components are linked (42) across a plurality of sequential segments to provide sinusoidal tracks. For each sinusoidal track, a phase comprising a generally monotonically changing value is determined and an encoded audio stream including sinusoidal codes (r) representing said phase is generated (46).

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