Adaptive transform acoustic coding circuit formed in a single ap

Details Adaptive transform acoustic coding circuit formed in a single ap Adaptive transform acoustic coding circuit formed in a single ap

1996-02-26

1998-10-06

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704229, 704500, 369 60, G10L 302

Patent

active

058192115

ABSTRACT:
The present invention relates to an adaptive transform acoustic coding circuit capable of ensuring the reliability of decoded audio data. The adaptive transform acoustic coding circuit is employed in a mini disc system, and includes a demultiplexer for inputting and demultiplexing a bit stream of an audio signal applied to the mini disk system; a word reconstruction unit for receiving the output of the demultiplexer, extracting and compressing audio spectrum data; a synthesis unit for extending data compressed at a word reconstruction unit for each of low, middle and high bands of the audio spectrum data and synthesizing the extended data; and an error removing unit for receiving a portion of the output of the demultiplexer and providing error removing data to the word reconstruction unit and the synthesis unit.

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Manual Update, TMS320C25 Users Guide.

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