| 摘要 |
PURPOSE:To reduce rough noises by reanalyzing residue information by setting an analytic window centering on a mean peak position in order, and segmenting the residue information by the reanalysis according to a peak position and generating sound source data. CONSTITUTION:The analytic window centering on the averaged peak position sequence is set in a residue waveform in order to perform resegmentation and reanalysis, and the residue obtained as a result is segmented uniformly according to the previous peak position sequence to generate a sound source file. Consequently, a sound source wave shifts in peak position, pitch by pitch, and the residue waveform has no phase variance in peak position. The residual waveform in each pitch section is averaged axially in an in-phase state and the added mean and weighted mean of the residue waveform B to be processed and other residue waveforms A and C are calculated. Consequently, this method is suitable for the synthesis of a female voice, etc., rough noises in the synthesized voice are reduced, and the synthesized voice which has good quality on the whole is obtained. |
