Method for compressing voice data by dividing extracted voice fr

Details Method for compressing voice data by dividing extracted voice fr Method for compressing voice data by dividing extracted voice fr

1993-12-23

1996-08-27

MacDonald, Allen R.

395 214, 395 221, G10L 302, G10L 900

Patent

active

055509495

ABSTRACT:
A method is provided for effecting clear voice compression. Voice data is input over a predetermined time "T", and the time is divided into a plurality of time periods t.sub.0 to t.sub.7. Frequency components of a plurality of frequencies f.sub.0 to f.sub.7 are separated from the voice data for each time period t.sub.0 to t.sub.7, and frequency components g.sub.0 to g.sub.7 of a plurality of frequencies of change in each frequency component of the voice data are calculated. The voice data is then quantized by dividing the frequency components of change by weighting values, the weighting values for intermediate frequencies being lower than the weighting values used for other frequencies.

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Voice compression compatibility and development issues Bindley, IEEE/Apr. 1990.

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