Adaptive tilt compensation for synthesized speech residual

  • US 6,385,573 B1
  • Filed: 09/18/1998
  • Issued: 05/07/2002
  • Est. Priority Date: 08/24/1998
  • Status: Expired due to Term
First Claim
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1. A speech system using an analysis by synthesis approach on a speech signal, the speech system comprising:

  • at least one codebook containing at least one code vector;

    processing circuitry that generates a synthesized residual signal using the at least one codebook; and

    the processing circuitry applying adaptive tilt compensation to the synthesized residual signal based in part on an encoding bit rate of the speech system and a flatness of the synthesized residual signal.

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