Speech coder

Details Speech coder Speech coder

1997-04-16

2000-02-08

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704230, 704219, 704220, G10L 500

Patent

active

060236728

ABSTRACT:
An excitation quantizer 60 in a speech encoder includes a divider, which divides M pulses representing in combination a speech signal into groups each of L pulses, L being smaller than M. The amplitude of pulses, i.e., L pulses as each unit, is quantized, using spectral parameter. The quantization is executed on at least one quantization candidate, which is selected through distortion evaluation made through addition of the evaluation value based on an adjacent group quantization candidate output value and the evaluation value based on the pertinent group quantization value.

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