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Systems and methods for reconstructing an audio signal from transformed audio information

  • US 9,142,220 B2
  • Filed: 08/08/2011
  • Issued: 09/22/2015
  • Est. Priority Date: 03/25/2011
  • Status: Active Grant
First Claim
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1. A method for reconstructing an audio signal from transformed audio information, the method comprising:

  • obtaining transformed audio information representing a sound, wherein the transformed audio information specifies magnitude of a coefficient related to signal intensity as a function of frequency for the audio signal and time; and

    resynthesizing the audio signal based on individual harmonics and corresponding pitches determined from the transformed audio information, wherein resynthesizing the audio signal includes;

    tracking one or more pitches of the sound to determine individual pitches and corresponding amplitudes as a function of time for individual harmonics of the sound,synthesizing individual harmonics using oscillators corresponding to individual harmonics, andsumming the synthesized harmonics to obtain the resynthesized audio signal.

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