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Effect of GCI perturbation on speech quality in Indian languages

DSpace at IIT Bombay

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Field Value
 
Title Effect of GCI perturbation on speech quality in Indian languages
 
Creator LEHANA, PK
PANDEY, PC
 
Description Harmonic plus noise model (HNM) divides the speech spectrum into two bands: harmonic and noise. One is modeled with harmonics of the fundamental and the other is simulated using random noise. As HNM analysis/synthesis is performed at each glottal closure instant (GCI), errors in estimation of GCIs affect the quality of the synthesized speech. The objective of this paper is to investigate the effect of the perturbation in GCIs on the synthesized speech quality. Childers and Hu's algorithm is used for GCIs calculations. Investigations show that the speech quality is very sensitive to positions of the GCIs. A small perturbation with maximum of 4% of the local pitch period considerably degrades the synthesized speech. Perturbations above 8% severely affect quality of the output speech.
 
Publisher IEEE
 
Date 2011-10-25T11:50:01Z
2011-12-15T09:11:53Z
2011-10-25T11:50:01Z
2011-12-15T09:11:53Z
2003
 
Type Proceedings Paper
 
Identifier IEEE TENCON 2003: CONFERENCE ON CONVERGENT TECHNOLOGIES FOR THE ASIA-PACIFIC REGION, VOLS 1-4,959-963
0-7803-8162-9
0886-1420
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15712
http://hdl.handle.net/100/2352
 
Source Conference on Convergent Technologies for the Asia-Pacific Region (TENCON 2003),Bangalore, INDIA,OCT 15-17, 2003
 
Language English