×

Apparatus system and method for speech compression and decompression

  • US 6,138,089 A
  • Filed: 03/10/1999
  • Issued: 10/24/2000
  • Est. Priority Date: 03/10/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for processing a speech signal comprising steps of:

  • identifying a plurality of portions of said speech signal representing individual speech pitches;

    generating an encoded speech signal from a plurality of said speech pitches, said encoded speech signal retaining ones of said plurality of pitches and omitting other ones of said plurality of pitches, at least one speech pitch being omitted for each speech pitch retained; and

    generating a reconstructed speech signal by replacing each said omitted pitch with an interpolated replacement pitch having signal waveform characteristics which are interpolated from a first retained reference pitch occurring temporally earlier to said pitch to be interpolated and from a second retained reference pitch occurring temporally later than said pitch to be interpolated.

View all claims
  • 11 Assignments
Timeline View
Assignment View
    ×
    ×