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Dual-band speech encoding

  • US 8,818,797 B2
  • Filed: 12/23/2010
  • Issued: 08/26/2014
  • Est. Priority Date: 12/23/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • determining, based on one speech waveform, a wideband speech feature and a narrowband speech feature;

    determining, based on the wideband speech feature, an estimate of the narrowband speech feature;

    determining, based on the narrowband speech feature and the estimate of the narrowband speech feature, an estimation error of the estimate of the narrowband speech feature;

    transmitting the wideband speech feature and the estimation error to a remote entity; and

    receiving, from the remote entity, data associated with a speech-based service based on the wideband speech feature.

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