Abstract
This chapter describes the study of some characteristics of sourceparameter dynamics to derive a preliminary set of rules that were integrated in textto-speech (TTS) systems. An automated procedure estimated the source parameters of 534 seconds of voiced speech from a set of 300 English sentences spoken by a single female speaker. The results showed that there is a strong correlation between the values of the source parameter in the vowel midpoint and the vowel duration. The same parameters tend to decrease on vowel onsets and to increase on vowels offsets. This seems to indicate a prosodic nature of these parameters requiring special treatment in concatenative-based TTS systems that use source modification techniques, such as pitch synchronous overlap add (PSOLA) and multipulse.
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Oliveira, L.C. (1997). Text-to-Speech Synthesis with Dynamic Control of Source Parameters. In: van Santen, J.P.H., Olive, J.P., Sproat, R.W., Hirschberg, J. (eds) Progress in Speech Synthesis. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-1894-4_3
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DOI: https://doi.org/10.1007/978-1-4612-1894-4_3
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