Speech Prosody 2004

Nara, Japan
March 23-26, 2004

Glottalized and Nonglottalized Tones under Emphasis: Open Quotient Curves Remain Stable, F0 Curve is Modified

Alexis Michaud (1), Vu Ngoc Tuân (2)

(1) Laboratoire Phonétique et Phonologie (UMR 7018) CNRS/ Sorbonne Nouvelle, Paris, France
(2) LIMSI (Laboratoire d’Informatique pour la Mécanique et les Sciences de l’Ingénieur), Orsay, France

Tones 4 and 8 of Hanoi Vietnamese have strongly contrasting voice quality features: tone 4, which is glottally constricted, is here compared with a similar but nonconstricted tone (tone 8). Under emphasis, the slope of F0 curves is increased and/or F0 register is raised. The open quotient values (calculated from the derivative of the electroglottographic signal, which has been shown to yield very accurate values) do not vary significantly with emphasis. A description in terms of curve amplification is put forward. As for changes in length, they appear to be speaker-dependent.

Full Paper

Sound Examples (for explanations, see appendix in the full paper):
s1t8eA  s1t8eE    s1t8neA  s1t8neE
s2t4neA  s2t4neE    s2t8neA  s2t8neE
s3t4neA  s3t4neE    s3t8neA  s3t8neE
fig1aAUD  fig1aEGG    fig1bAUD  fig1bEGG

Bibliographic reference.  Michaud, Alexis / Tuân, Vu Ngoc (2004): "Glottalized and nonglottalized tones under emphasis: open quotient curves remain stable, F0 curve is modified", In SP-2004, 745-748.