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The effect of SNR and GCI perturbation on speech synthesis with harmonic plus noise model

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Title The effect of SNR and GCI perturbation on speech synthesis with harmonic plus noise model
 
Creator LEHANA, PK
PANDEY, PC
 
Subject speech synthesis
glottal closure instants (gcis)
harmonic plus noise model (hnm)
electroglottogram (egg)
 
Description Harmonic plus noise model (HNM) divides the speech spectrum in two bands: harmonic and noise. As most of the non-periodic components are removed in harmonic part, it may be expected that HNM synthesis is less susceptible to additive noise in input speech. As HNM analysis/synthesis is performed, at each glottal closure instant (GCI), errors in estimation of GCIs affect the quality of the synthesized speech. Effects of the amount of additive broadband noise in input speech and perturbation in GCIs on the synthesized speech quality with special reference to phoneme sets in Indian languages were studied. Synthesis results show that for SNR in the 2-10 dB range, the quality of synthesized speech is superior to that of the input speech. Investigations also show that the speech quality is very sensitive to positions of the GCIs. Perturbations above 8% severely affect quality of the output speech.
 
Publisher INT INST INFORMATICS & SYSTEMICS
 
Date 2011-10-26T19:52:43Z
2011-12-15T09:12:29Z
2011-10-26T19:52:43Z
2011-12-15T09:12:29Z
2003
 
Type Proceedings Paper
 
Identifier 7TH WORLD MULTICONFERENCE ON SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL IV, PROCEEDINGS: IMAGE, ACOUSTIC, SPEECH AND SIGNAL PROCESSING,396-401
980-6560-01-9
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16110
http://hdl.handle.net/100/2692
 
Source 7th World Multiconference on Systemics, Cybernetics and Informatics,ORLANDO, FL,JUL 27-30, 2003
 
Language English