Analysis of information sources in references of the Wikipedia article "PSOLA" in Japanese language version.
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a pitch-synchronous overlap-add (PSOLA) approach ... In this paper, we first present the common PSOLA framework(Moulines 1990, pp. 453–454) Moulines, Eric (1990). “Pitch-synchronous waveform processing techniques for text-to-speech synthesis using diphones”. Speech Communication. 9 (5–6): 453–467. doi:10.1016/0167-6393(90)90021-Z.
The PSOLA synthesis scheme involves the three following steps: an analysis of the original speech waveform ... modifications brought to this intermediate representation ... the synthesis of the modified signal from the modified intermediate representation(Moulines 1990, p. 454) Moulines, Eric (1990). “Pitch-synchronous waveform processing techniques for text-to-speech synthesis using diphones”. Speech Communication. 9 (5–6): 453–467. doi:10.1016/0167-6393(90)90021-Z.
consists of a sequence of short-term signals(Moulines 1990, p. 454) Moulines, Eric (1990). “Pitch-synchronous waveform processing techniques for text-to-speech synthesis using diphones”. Speech Communication. 9 (5–6): 453–467. doi:10.1016/0167-6393(90)90021-Z.
at a pitch-synchronous rate on the voiced portions of the signal and at a constant rate on the unvoiced portions.(Moulines 1990, pp. 454–455) Moulines, Eric (1990). “Pitch-synchronous waveform processing techniques for text-to-speech synthesis using diphones”. Speech Communication. 9 (5–6): 453–467. doi:10.1016/0167-6393(90)90021-Z.
The modifications of the speech signal are performed either in the frequency domain (FD-PSOLA) ... or directly in the time domain (TD-PSOLA)(Moulines 1990, p. 453) Moulines, Eric (1990). “Pitch-synchronous waveform processing techniques for text-to-speech synthesis using diphones”. Speech Communication. 9 (5–6): 453–467. doi:10.1016/0167-6393(90)90021-Z.
a family of methods for modifying the prosody of natural speech ... are used to improve the voice quality of text-to-speech systems based on the concatenation of elementary speech units,(Moulines 1990, p. 453) Moulines, Eric (1990). “Pitch-synchronous waveform processing techniques for text-to-speech synthesis using diphones”. Speech Communication. 9 (5–6): 453–467. doi:10.1016/0167-6393(90)90021-Z.