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Voice communication processing system

  • US 5,448,680 A
  • Filed: 02/12/1992
  • Issued: 09/05/1995
  • Est. Priority Date: 02/12/1992
  • Status: Expired due to Fees
First Claim
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1. A voice communication processing system for processing a speech waveform as a digital bit stream, comprising:

  • transmitting means for converting the speech waveform into the digital bit stream and transmitting the digital bit stream by encoding speech parameters from the speech waveform into reduced bit representation by joint encoding the speech parameters over frames in the digital bit stream; and

    receiving means for receiving the digital bit stream and converting the digital bit stream into a reproduced speech waveform by decoding the reduced bit representation in the digital bit stream into reproduced speech parameters in the reproduced speech waveform;

    wherein said transmitting means includes a parameter encoder encoding an amplitude parameter by joint encoding amplitude table indices of the frames in the digital bit stream.

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