Application of Concepts From Cross-Recurrence Analysis in Speech Production: An Overview and Comparison With Other Nonlinear Methods Purpose The aim of this article was to introduce an important tool, cross-recurrence analysis, to speech production applications by showing how it can be adapted to evaluate the similarity of multivariate patterns of articulatory motion. The method differs from classical applications of cross-recurrence analysis because no phase space reconstruction is ... Research Article
Research Article  |   June 01, 2014
Application of Concepts From Cross-Recurrence Analysis in Speech Production: An Overview and Comparison With Other Nonlinear Methods
 
Author Affiliations & Notes
  • Leonardo Lancia
    Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
  • Susanne Fuchs
    Center for General Linguistics (ZAS/Phonetik), Berlin, Germany
  • Mark Tiede
    Haskins Laboratories, New Haven, CT
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication.×
  • Correspondence to Leonardo Lancia: leonardo_lancia@eva.mpg.de
  • Editor: Jody Kreiman
    Editor: Jody Kreiman×
  • Associate Editor: Julie Liss
    Associate Editor: Julie Liss×
Article Information
Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   June 01, 2014
Application of Concepts From Cross-Recurrence Analysis in Speech Production: An Overview and Comparison With Other Nonlinear Methods
Journal of Speech, Language, and Hearing Research, June 2014, Vol. 57, 718-733. doi:10.1044/1092-4388(2013/12-0223)
History: Received July 11, 2012 , Revised February 9, 2013 , Accepted August 2, 2013
 
Journal of Speech, Language, and Hearing Research, June 2014, Vol. 57, 718-733. doi:10.1044/1092-4388(2013/12-0223)
History: Received July 11, 2012; Revised February 9, 2013; Accepted August 2, 2013

Purpose The aim of this article was to introduce an important tool, cross-recurrence analysis, to speech production applications by showing how it can be adapted to evaluate the similarity of multivariate patterns of articulatory motion. The method differs from classical applications of cross-recurrence analysis because no phase space reconstruction is conducted, and a cleaning algorithm removes the artifacts from the recurrence plot. The main features of the proposed approach are robustness to nonstationarity and efficient separation of amplitude variability from temporal variability.

Method The authors tested these claims by applying their method to synthetic stimuli whose variability had been carefully controlled. The proposed method was also demonstrated in a practical application: It was used to investigate the role of biomechanical constraints in articulatory reorganization as a consequence of speeded repetition of CVCV utterances containing a labial and a coronal consonant.

Results Overall, the proposed approach provided more reliable results than other methods, particularly in the presence of high variability.

Conclusion The proposed method is a useful and appropriate tool for quantifying similarity and dissimilarity in patterns of speech articulator movement, especially in such research areas as speech errors and pathologies, where unpredictable divergent behavior is expected.

Acknowledgments
This work was partially sponsored by a grant from the Federal Ministry of Education and Research (BMBF; 01UG0711) and a grant from the German French University in Saarbrücken given to the PILIOS project.
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