Patent Document ID: 20070094031
Application ID: 11583715
Patent Flag: 0

Claim One:
1. A method for time scale modifying an input audio signal, comprising: calculating a waveform similarity measure or waveform difference measure between a decimated portion of a second waveform segment of the input audio signal and each of a plurality of portions of a decimated first waveform segment of the input audio signal to identify an optimal time shift in a decimated domain; identifying an optimal time shift in an undecimated domain based on the identified optimal time shift in the decimated domain; overlap adding a portion of the first waveform segment identified by the optimal time shift in the undecimated domain with the portion of the second waveform segment to produce an overlap-added waveform segment; and providing at least a portion of the overlap-added waveform segment as a time scale modified audio output signal.