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Post-low bouncing in Mandarin Chinese: acoustic analysis and computational modeling.

Santitham Prom-on¹, Fang Liu, Yi Xu

¹Department of Speech, Hearing and Phonetic Sciences, University College London, London WC1N 1PF, United Kingdom.

The Journal of the Acoustical Society of America

|July 12, 2012

Summary

Post-low bouncing in Mandarin Chinese involves an F0 rise after a low tone. Acoustic analysis and a mechanical model reveal this effect correlates with preceding pitch lowering and laryngeal control perturbations.

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Area of Science:

Phonetics
Acoustic Phonetics
Linguistics

Background:

Post-low bouncing is a tonal phenomenon in Mandarin Chinese.
It describes an F0 rise after a very low pitch in a low lexical tone.

Purpose of the Study:

To acoustically analyze post-low bouncing in Mandarin Chinese.
To develop a mechanical model simulating this bouncing effect.

Main Methods:

Acoustic analysis of two Mandarin Chinese corpora.
Quantitative Target Approximation model for simulation.
Mechanical model incorporating acceleration adjustment.

Main Results:

F0 dynamic features correlate with preceding F0 lowering.
F0 raising begins at the first post-low syllable.
A linear relation exists between F0 lowering and acceleration adjustment.

Conclusions:

The bouncing effect can be simulated by adjusting initial F0 state.
Results support the hypothesis of laryngeal control perturbation.
The model effectively simulates bouncing in neutral and full tones.