Method for determining speech encoding rate in a variable rate v

Details Method for determining speech encoding rate in a variable rate v Method for determining speech encoding rate in a variable rate v

1992-12-02

1994-08-23

MacDonald, Allen R.

395 228, 395 238, G10L 900

Patent

active

053414560

ABSTRACT:
In a variable rate vocoder a method for determining a higher encoding rate of a set of encoding rates for unvoiced speech. The method is accomplished by generating an encoding rate indication based upon a first characteristic of an audio signal, determining a second characteristic of the audio signal, and modifying the encoding rate indication when the second characteristic of the audio signal is representative of unvoiced speech to provide a modified encoding rate indication corresponding to a higher encoding rate of the set of encoding rates.

REFERENCES:
patent: 4890327 (1989-12-01), Betrand et al.
patent: 4899384 (1990-02-01), Crouse et al.
patent: 5222189 (1993-06-01), Fielder

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