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SPEAKER NORMALIZATION BASED ON SUBGLOTTAL RESONANCES Shizhen Wang, Abeer Alwan
 

Summary: SPEAKER NORMALIZATION BASED ON SUBGLOTTAL RESONANCES
Shizhen Wang, Abeer Alwan
Department of Electrical Engineering
University of California,Los Angeles
Los Angeles, CA 90095
Steven M. Lulich
Speech Communication Group
MIT, Cambridge, MA 02139
ABSTRACT
Speaker normalization typically focuses on variabilities of the
supra-glottal (vocal tract) resonances, which constitute a major cause
of spectral mismatch. Recent studies show that the subglottal air-
ways also affect spectral properties of speech sounds. This paper
presents a speaker normalization method based on estimating the
second and third subglottal resonances. Since the subglottal airways
do not change for a specific speaker, the subglottal resonances are in-
dependent of the sound type (i.e., vowel, consonant, etc.) and remain
constant for a given speaker. This context-free property makes the
proposed method suitable for limited data speaker adaptation. This
method is computationally more efficient than maximum-likelihood

  

Source: Alwan, Abeer - Electrical Engineering Department, University of California at Los Angeles

 

Collections: Computer Technologies and Information Sciences