Fourier Descriptor Analysis and Unification of Voice Range Profile Contours: Method and Applications PurposeTo describe a method for unified description, statistical modeling, and comparison of voice range profile (VRP) contours, even from diverse sources.MethodA morphologic modeling technique, which is based on Fourier descriptors (FDs), is applied to the VRP contour. The technique, which essentially involves resampling of the curve of the contour, is ... Article
Article  |   June 01, 2011
Fourier Descriptor Analysis and Unification of Voice Range Profile Contours: Method and Applications
 
Author Affiliations & Notes
  • Peter Pabon
    Institute of Sonology, Royal Conservatory, The Hague/University Utrecht/Voice Quality Systems
    Institute of Sonology, Royal Conservatory, The Hague/University Utrecht/Voice Quality Systems
  • Sten Ternström
    Kungliga Tekniska Högskolan (KTH), School of Computer Science and Communication, Stockholm, Sweden
    Kungliga Tekniska Högskolan (KTH), School of Computer Science and Communication, Stockholm, Sweden
  • Anick Lamarche
    Kungliga Tekniska Högskolan (KTH), School of Computer Science and Communication, Stockholm, Sweden
    Kungliga Tekniska Högskolan (KTH), School of Computer Science and Communication, Stockholm, Sweden
  • Disclosure Statement
    Disclosure Statement×
    The first author is the primary developer of the FonetoGram Window (FGW) system as well as the Voice Profiler system.
    The first author is the primary developer of the FonetoGram Window (FGW) system as well as the Voice Profiler system.×
  • Correspondence to Peter Pabon: pabon@koncon.nl
  • Editor: Anne Smith
    Editor: Anne Smith×
  • Associate Editor: Ryan Branski
    Associate Editor: Ryan Branski×
Article Information
Speech, Voice & Prosody / Speech
Article   |   June 01, 2011
Fourier Descriptor Analysis and Unification of Voice Range Profile Contours: Method and Applications
Journal of Speech, Language, and Hearing Research, June 2011, Vol. 54, 755-776. doi:10.1044/1092-4388(2010/08-0222)
History: Received October 30, 2008 , Accepted September 27, 2010
 
Journal of Speech, Language, and Hearing Research, June 2011, Vol. 54, 755-776. doi:10.1044/1092-4388(2010/08-0222)
History: Received October 30, 2008; Accepted September 27, 2010
Web of Science® Times Cited: 11

PurposeTo describe a method for unified description, statistical modeling, and comparison of voice range profile (VRP) contours, even from diverse sources.

MethodA morphologic modeling technique, which is based on Fourier descriptors (FDs), is applied to the VRP contour. The technique, which essentially involves resampling of the curve of the contour, is assessed and also is compared to density-based VRP averaging methods that use the overlap count.

ResultsVRP contours can be usefully described and compared using FDs. The method also permits the visualization of the local covariation along the contour average. For example, the FD-based analysis shows that the population variance for ensembles of VRP contours is usually smallest at the upper left part of the VRP. To illustrate the method’s advantages and possible further application, graphs are given that compare the averaged contours from different authors and recording devices—for normal, trained, and untrained male and female voices as well as for child voices.

ConclusionsThe proposed technique allows any VRP shape to be brought to the same uniform base. On this uniform base, VRP contours or contour elements coming from a variety of sources may be placed within the same graph for comparison and for statistical analysis.

Acknowledgments
The authors warmly thank Louis Heylen and colleagues, Renée Speyer, and all members of the Voice Profiler Users Group for generously supplying their original and strenuously collected VRP contours to be used as material for this study. Thanks also go to the firm Voice Quality Systems for practical and technological support as well as to the Royal Conservatory at the Hague for providing an environment that was conducive to this work.
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