Method and device for coding a voice signal

Details Method and device for coding a voice signal Method and device for coding a voice signal

1983-11-18

1987-06-30

Kemeny, E. S. Matt

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

375122, 375 37, G10L 500

Patent

active

046776710

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.

REFERENCES:
patent: 4216354 (1980-08-01), Esteban et al.
patent: 4491953 (1985-01-01), Bellisio et al.
patent: 4569075 (1986-02-01), Nussbaumer

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