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VOICE-BAND EXTENDING APPARATUS AND VOICE-BAND EXTENDING METHOD

  • US 20120078632A1
  • Filed: 06/13/2011
  • Published: 03/29/2012
  • Est. Priority Date: 09/27/2010
  • Status: Abandoned Application
First Claim
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1. A voice-band extending apparatus comprising:

  • an evaluating unit that evaluates one of a noise level and a signal noise ratio with respect to each of bands in an input signal that is input from an outside;

    a band selecting unit that selects a band that includes few noises from the input signal based on an evaluation result by the evaluating unit;

    a creating unit that creates an extension signal to extend a band in an input signal by using a signal of the band selected by the band selecting unit; and

    an addition unit that adds the extension signal created by the creating unit to the input signal.

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