DocumentCode :
2619826
Title :
Speech spectral envelope estimation through explicit control of peak evolution in time
Author :
Godoy, Elizabeth ; Rosec, Olivier ; Chonavel, Thierry
Author_Institution :
Orange Labs., Lannion, France
fYear :
2010
fDate :
10-13 May 2010
Firstpage :
209
Lastpage :
212
Abstract :
This work proposes a new approach to estimating the speech spectral envelope that is adapted for applications requiring time-varying spectral modifications, such as Voice Conversion. In particular, we represent the spectral envelope as a sum of peaks that evolve smoothly in time, within a phoneme. Our representation provides a flexible model for the spectral envelope that pertains relevantly to human speech production and perception. We highlight important properties of the proposed spectral envelope estimation, as applied to natural speech, and compare results with those from a more traditional frame-by-frame cepstrum-based analysis. Subjective evaluations and comparisons of synthesized speech quality, as well as implications of this work in future research are also discussed.
Keywords :
cepstral analysis; spectral analysers; speech processing; speech synthesis; cepstrum based analysis; peak evolution; speech quality; speech spectral envelope estimation; speech synthesis; voice conversion; Analytical models; Discrete Fourier transforms; Gold; Natural languages; spectral envelope; speech analysis; voice conversion;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Sciences Signal Processing and their Applications (ISSPA), 2010 10th International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-7165-2
Type :
conf
DOI :
10.1109/ISSPA.2010.5605540
Filename :
5605540
Link To Document :
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