This paper introduces a novel articulatory-acoustic mapping in which detailed spectral envelopes are estimated based on the cepstrum, inclusive of the high-quefrency elements which are discarded in conventional speech synthesis to eliminate the pitch component of speech. For this estimation, the method deals with the harmonics of multiple voiced-speech spectra so that several sets of harmonics can be obtained at various pitch frequencies to form a spectral envelope. The experimental result shows that the method estimates spectral envelopes with the highest accuracy when the cepstral order is 48-64, which suggests that the higher order coeffcients are required to represent detailed envelopes reflecting the real vocal-tract responses.
Cite as: Shiga, Y., King, S. (2004) Accurate spectral envelope estimation for articulation-to-speech synthesis. Proc. 5th ISCA Workshop on Speech Synthesis (SSW 5), 19-24
@inproceedings{shiga04_ssw,
author={Yoshinori Shiga and Simon King},
title={{Accurate spectral envelope estimation for articulation-to-speech synthesis}},
year=2004,
booktitle={Proc. 5th ISCA Workshop on Speech Synthesis (SSW 5)},
pages={19--24}
}