Adaptive differential, pulse code modulation sound generator

Details Adaptive differential, pulse code modulation sound generator Adaptive differential, pulse code modulation sound generator

1989-03-22

1991-01-29

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

360 8, G10L 500

Patent

active

049892460

ABSTRACT:
A sound generator for storing and reproducing audio signal with reduced memory storage, which is accomplished by: (a) the technique of Adaptive Differential Pulse Code Modulation (ADPCM), and (B) the elimination of silence period from memory storage but regenerating the silence signal at output.

REFERENCES:
patent: 3909532 (1975-09-01), Rabiner et al.
patent: 4184049 (1980-01-01), Crochiere
patent: 4376874 (1983-03-01), Karban et al.

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