Calculating articulatory syllable duration and prosodic boundaries

Donna Erickson, Shigeto Kawahara, Jeff Moore, Caroline Menezes, Atsuo Suemitsu, Jangwon Kim, Yoshiho Shibuya

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)


Articulatory duration of vowels is often measured as the duration from jaw closure maximum to jaw closure maximum, flanking the production of the syllable nucleus. However, this method may not necessarily represent articulatory syllable duration, since the actual onset/offset of the syllable depends on the specific articulator (lip, tongue) that implements the articulation of the syllable onset/coda, and which does not strictly synchronize with timing of jaw movements nor with acoustically measured syllable durations (e.g., [Menezes, 2004]). We propose that by using a different approach, that suggested by the C/D model [Fujimura, 2000], it is possible to compute quantitatively the time values of prosodic boundaries from articulatory dynamics data. The algorithmic output, the “syllable pulse train”, is the phonetic realization of the utterance’s rhythmic structure (e.g., [Bonaventura and Fujimura, 2007]), which in turn reflects the phonologically derived metrical structure of the utterance (e.g., [Erickson et al., 2012]). Our small study presented here using the C/D model indeed revealed systematic articulatory patterns across speakers.

Original languageEnglish
Number of pages4
Publication statusPublished - 2014
Externally publishedYes
Event10th International Seminar on Speech Production, ISSP 2014 - Cologne, Germany
Duration: 2014 May 52014 May 8


Conference10th International Seminar on Speech Production, ISSP 2014


  • Articulatory duration
  • C/D model
  • Metrical structure
  • Prosodic boundaries

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Signal Processing


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