Patent ID: 7069217

Claim:
A method of generating a cyclical sound waveform corresponding to a sequence of substantially similar cycles, said method comprising: (a) generating a cyclical sound waveform sample; (b) generating a successive cyclical sound waveform sample from said cyclical sound waveform sample and transformation data, wherein said transformation data comprise data defining the evolution of said cycles in a temporal vicinity of said cyclical sound waveform and the change in shape of said cycles in said temporal vicinity from cycle to cycle; (c) designating said successive cyclical sound waveform sample as a cyclical sound waveform sample and repeating (b); (d) repeating (c) a plurality of times to generate a sequence of said successive cyclical sound waveform samples corresponding to a plurality of said cycles; and (e) outputting the samples of said sequence to generate a waveform representing a cyclical sound.