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System for speech encoding having an adaptive encoding arrangement

  • US 20070255561A1
  • Filed: 07/12/2007
  • Published: 11/01/2007
  • Est. Priority Date: 09/18/1998
  • Status: Abandoned Application
First Claim
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1. A speech encoding system comprising:

  • a detector for detecting whether an input speech signal generally has a triggering characteristic during an interval;

    an encoder supporting at least one of a first encoding scheme and a first encoding scheme applicable to the speech signal for a frame associated with the interval, the first encoding scheme having a pre-processing procedure for processing the inputted speech signal to form a revised speech signal biased toward a generally ideal voiced and stationary characteristic; and

    a selector for selecting one of the first encoding scheme and the second encoding scheme based upon the detection or absence of the triggering characteristic in the interval of the input speech signal.

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