Patent ID: 6020550
Filing Date: 2000-02-01
Classification: G10H

Abstract:
A method for synthesizing a synthesized sound waveform, the method at least comprising:providing a first timbre sample S having a first repeated waveform SL at its last portion, and a second repeated timbre sample TL that has equal length to the first repeated waveform SL;replacing the first repeated waveform SL of the first timbre sample S with the second repeated waveform TL so as to form a second timbre sample T, in which a portion of the first timbre sample S other than the first repeated waveform SL forms a first pre-waveform TH;transforming the first repeated waveform SL into a frequency domain by a digital Fourier transformation, extracting low frequency modes, and transforming the low frequency modes of the first repeated waveform SL back into an original space domain so as to form a third repeated waveform NSL;adding the second repeated waveform TL to the third repeated waveform NSL so as to obtain a fourth repeated waveform SUML;normalizing a power of the fourth repeated waveform SUML to a power of the second repeated waveform TL so as to obtain a fifth repeated waveform FL; andconnecting the fifth repeated waveform FL to the first pre-waveform TH so as to obtain a synthesized timbre sample F, which can be used to synthesize the synthesized sound waveform by repeating the synthesized timbre sample F.