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Wideband speech coding system and method

  • US 7,136,810 B2
  • Filed: 08/01/2001
  • Issued: 11/14/2006
  • Est. Priority Date: 05/22/2000
  • Status: Active Grant
First Claim
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1. A method of wideband speech decoding, comprising:

  • (a) decoding a first portion of an input signal as a lowband speech signal;

    (b) decoding a second portion of an input signal as a noise-modulated excitation of a linear prediction encoding wherein said noise modulated excitation is noise modulated by a portion of the results of said decoding as a lowband speech signal of preceding step (a) and adaptively smoothed; and

    (c) combining the results of foregoing steps (a) and (b) to form a decoded wideband speech signal.

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