Encoder of a multi-pulse type capable of optimizing the number o

Details Encoder of a multi-pulse type capable of optimizing the number o Encoder of a multi-pulse type capable of optimizing the number o

1988-05-16

1989-11-14

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 51, G10L 500

Patent

active

048812676

ABSTRACT:
In a multipulse-excitation system, the number of pulses versus the number of quantization levels are adjusted as a function of speech signal power, for example, voiced sound is high power and needs only a few pulses, but large number of quantization levels, versus the reverse for unvoiced sound.

REFERENCES:
patent: 4709390 (1987-11-01), Atal et al.
patent: 4716592 (1987-12-01), Ozawa et al.

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