Three-dimensional digital waveguide mesh simulation of cylindrical vocal tract analogs

Matt Speed*, Damian T. Murphy, David M. Howard

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

3D time-domain acousticmodeling techniques have the potential to produce more accurate simulation of the vocal tract than previously implemented 1D or 2D solutions, although the variability of human voice renders it a problematic benchmark for validation of its resynthesis. This study uses acoustic measurement of acrylic cylindrical vocal tract models derived from X-Ray data to assess the validity of comparable 3D digital waveguide mesh simulations. It is found that for more simple structures the 3D digital waveguide mesh is able to reproduce the acoustic behavior up to 10 kHz with only slight errors in resonant frequencies. As the simulated structures become more geometrically complex, this shifting becomes more severe.

Original languageEnglish
Article number2224342
Pages (from-to)449-454
Number of pages6
JournalIEEE Transactions On Audio Speech And Language Processing
Volume21
Issue number2
Early online date12 Oct 2012
DOIs
Publication statusPublished - Feb 2013

Bibliographical note

Publisher Copyright:
© 2012 IEEE.

Keywords

  • Acoustics
  • Human voice
  • Speech synthesis

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