DETERMINATION OF THE VOCAL TRACT SPECTRUM FROM THE ARTICULATORY MOVEMENTS BASED ON THE SEARCH OF AN ARTICULATORY-ACOUSTIC DATABASE

Tokihiko Kaburagi, Masaaki Honda

Research output: Contribution to conferencePaperpeer-review

22 Citations (Scopus)

Abstract

This paper presents a method for determining the vocal-tract spectrum from the positions of fixed points on the articulatory organs. The method is based on the search of a database comprised of pairs of articulatory and acoustic data representing the direct relationship between the articulator position and vocal-tract spectrum. To compile the database, the electro-magnetic articulograph (EMA) system is used to measure the movements of the jaw, lips, tongue, velum, and larynx simultaneously with speech waveforms. The spectrum estimation is accomplished by selecting database samples neighboring the input articulator position and interpolating the selected samples. In addition, phoneme categorization of the input position is performed to restrict the search area of the database to portions of the same phoneme category. Experiments show that the mean estimation error is 2.24 dB and the quality of speech synthesized from the estimated spectrum can be improved by using the phoneme categorization.

Original languageEnglish
Publication statusPublished - 1998
Externally publishedYes
Event5th International Conference on Spoken Language Processing, ICSLP 1998 - Sydney, Australia
Duration: Nov 30 1998Dec 4 1998

Conference

Conference5th International Conference on Spoken Language Processing, ICSLP 1998
Country/TerritoryAustralia
CitySydney
Period11/30/9812/4/98

All Science Journal Classification (ASJC) codes

  • Language and Linguistics
  • Linguistics and Language

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