Adaptive variable bit rate audio compression encoding

Details Adaptive variable bit rate audio compression encoding Adaptive variable bit rate audio compression encoding

2007-12-25

2007-12-25

Storm, Donald L. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S200100

Reexamination Certificate

active

11434537

ABSTRACT:
An adaptive variable bit rate audio encoder and method that examines audio level information and detects various information in the audio data in a psychoacoustic model to create a quantization value and assign a mode tag to a single frame of audio. A bit rate is assigned according to one of three modes, a self-adaptive mode which is free-running and takes direction only from the characteristics of the incoming audio signal, a managed mode which is controlled by rules set from a statistical multiplexer, and a combination of self-adaptive and managed in which control rules from the statistical multiplexer act to maintain limits on the self-adaptive mode.

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