Length of a processing block is rendered variable responsive to

Details Length of a processing block is rendered variable responsive to Length of a processing block is rendered variable responsive to

1997-02-20

1998-10-06

Tung, Kee M.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

G10L 302

Patent

active

058192140

ABSTRACT:
In a recording/reproducing or transmitting/receiving device for compressed data the temporal size of a processing block during the compression process is rendered variable responsive to larger amplitude changes in the input signals. The device includes power calculating circuits for calculating the masking effect on a processing block based on amplitude changes in the waveform on the time axis of various frequency bands of the processing block and based on the power of a processing block(s) other than the subject processing block. A primary block size decision circuit and a block size correction circuit are utilized to determine the temporal size of the subject processing block.

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