Ninth International Conference on Spoken Language Processing

Pittsburgh, PA, USA
September 17-21, 2006

Voice Source Correlates of Prosodic Features in American English: A Pilot Study

Markus Iseli, Yen-Liang Shue, Melissa A. Epstein, Patricia Keating, Jody Kreiman, Abeer Alwan

University of California at Los Angeles, USA

In this paper, we examine the dependencies of voice source parameters F0(fundamental frequency), Ee(maximal glottal flow change), RK(glottal symmetry/skew), LIN(value related to source spectral tilt) and H.1 - H.2 (difference of formant-corrected magnitudes of the first two source spectral harmonics) on prosodic features such as pitch accents, stress, and sentence type and the interdependencies of some of these measures. A small, carefully designed corpus containing a sentence in different prosodic configurations was used in this study. Statistical analysis was performed using two-way ANOVAs to test for the voice source parameter dependencies. Results show that F0 is positively correlated with Ee and LIN, and negatively correlated with H.1 - H.2 . Stressed syllables showed lower values of RK and H.1 - H.2 compared to stressless syllables. The effect of pitch accent can be seen as a combination of its F0, and stress. Phrase-final syllables for interrogative sentences yielded a higher F0 and lower RK and H.1 - H.2 compared to declarative sentences. It was found that it is important to differentiate between tones when analyzing prosodic features that involve tones, such as pitch accent and probably boundary.

Full Paper

Bibliographic reference.  Iseli, Markus / Shue, Yen-Liang / Epstein, Melissa A. / Keating, Patricia / Kreiman, Jody / Alwan, Abeer (2006): "Voice source correlates of prosodic features in american English: a pilot study", In INTERSPEECH-2006, paper 1933-Thu1A3O.1.