Method and device for coding a voice signal
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United States of America Patent
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-
Jun 30, 1987
Grant Date -
N/A
app pub date -
Nov 18, 1983
filing date -
Nov 26, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A voice signal coding method is provided for processing the residual base-band signal provided by a Voice Excited Predictive (VEPC) Coder. The residual signal is split over several sub-bands and the contents of each sub-band is dually coded by using a process including a simultaneous direct BCPCM and differential APC coding with dynamic assignment of the quantizing bits according to the relative sub-band contents, which simultaneous coding is followed by a dynamic choice of the sub-band coded output providing the lowest coding error.
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