Technique for "tuning" vocal tract area functions based on acoustic sensitivity functions

The Journal of the Acoustical Society of America
B H Story

Abstract

A technique for modifying vocal tract area functions is developed by using sum and difference combinations of acoustic sensitivity functions to perturb an initial vocal tract configuration. First, sensitivity functions [e.g., Fant and Pauli, Proc. Speech Comm. Sem. 74, 1975] are calculated for a given area function, at its specific formant frequencies. The sensitivity functions are then multiplied by scaling coefficients that are determined from the difference between a desired set of formant frequencies and those supported by the current area function. The scaled sensitivity functions are then summed together to generate a perturbation of the area function. This produces a new area function whose associated formant frequencies are closer to the desired values than the previous one. This process is repeated iteratively until the coefficients are equal to zero or are below a threshold value.

References

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Apr 1, 1974·The Journal of the Acoustical Society of America·J Sundberg
Apr 1, 1967·The Journal of the Acoustical Society of America·M R Schroeder
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Dec 29, 2000·Journal of Voice : Official Journal of the Voice Foundation·B H StoryI R Titze
Apr 28, 2001·The Journal of the Acoustical Society of America·B H StoryE A Hoffman

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Citations

Oct 2, 2007·The Journal of the Acoustical Society of America·Brad H Story
Jun 10, 2008·The Journal of the Acoustical Society of America·Xinhui ZhouAnn Choe
Aug 10, 2013·The Journal of the Acoustical Society of America·Paavo AlkuBrad H Story
Jan 29, 2009·The Journal of the Acoustical Society of America·Kate Bunton, Brad H Story
Jan 21, 2014·The Journal of the Acoustical Society of America·Marc Arnela, Oriol Guasch
Apr 8, 2010·The Journal of the Acoustical Society of America·Kate Bunton, Brad H Story
Jun 8, 2013·The Journal of the Acoustical Society of America·Xinhui ZhouCarol Y Espy-Wilson
Jun 8, 2007·The Journal of the Acoustical Society of America·Seiji AdachiKiyoshi Honda
May 12, 2010·Journal of Voice : Official Journal of the Voice Foundation·Timo LeinoVojtěch Radolf
Feb 24, 2015·The Journal of the Acoustical Society of America·W Kreuzer, C H Kasess
Feb 9, 2016·Speech Communication·Brad H Story, Kate Bunton
Jul 16, 2015·PloS One·Adam C Lammert, Shrikanth S Narayanan
Jun 3, 2018·The Journal of the Acoustical Society of America·Brad H StoryReid B Durtschi
May 3, 2019·The Journal of the Acoustical Society of America·Kohichi OgataRiku Aoki
Feb 13, 2020·ELife·Christopher BergevinBrad Story
Jun 4, 2020·The Journal of the Acoustical Society of America·Gabriel A AlzamendiMatías Zañartu

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