Patent ID: 6992245

Claim:
A singing voice synthesizing method, comprising the steps of: (a) detecting a frequency spectrum by analyzing a frequency of a voice waveform corresponding to a voice synthesis unit of a voice to be synthesized; (b) detecting a plurality of local peaks of a spectrum intensity on the frequency spectrum; (c) designating, for each of the plurality of the local peaks, a spectrum distribution region including the local peak and spectrums therebefore and thereafter on the frequency spectrum and generating amplitude spectrum data representing an amplitude spectrum distribution depending on a frequency axis for each spectrum distribution region; (d) generating phase spectrum data representing a phase spectrum distribution depending on the frequency axis for each said spectrum distribution region; (e) designating a pitch for the voice to be synthesized; (f) adjusting, for each said spectrum distribution region, the amplitude spectrum data by moving the amplitude spectrum distribution represented by the amplitude spectrum data along the frequency axis in accordance with the pitch; (g) adjusting, for each said spectrum distribution region, the phase spectrum distribution represented by the phase spectrum data in accordance with the adjustment of the amplitude spectrum data; and (h) converting the adjusted amplitude spectrum data and the adjusted phase spectrum data into a synthesized voice signal of a time region.