Experimental investigation of end-of-utterance perception by final lowering in spontaneous Japanese

Ishimoto, Yuichi; Enomoto, Mika

doi:10.1109/icsda.2016.7919012

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Implication Of the New Hypothesis1

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“…This margin can be useful for the speech information processing by listeners. As Ishimoto and Enomoto suggested based on their perception experiment [15], signaling utterance finality at the very end of an utterance is of no practical use for listeners.…”

Section: Implication Of the New Hypothesismentioning

confidence: 99%

A New Model of Final Lowering in Spontaneous Monologue

Maekawa¹

2017

Interspeech 2017

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F0 downtrend observed in spontaneous monologues in the Corpus of Spontaneous Japanese was analyzed with special attention to the modeling of final lowering. In addition to the previous finding that the domain of final lowering covers all tones in the final accentual phrase, it turned out that the last L tone in the penultimate accentual phrase played important role in the control of final lowering. It is this tone that first reached the bottom of the speaker's pitch range in the time course of utterance; it also turned out that the phonetic realization of this tone is the most stable of all tones in terms of the F0 variability. Regression model of F0 downtrends is generated by generalized linear mixed-effect modeling and evaluated by cross-validation. The mean prediction error of z-normalized F0 values in the best model was 0.25 standard deviation.

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Section: Implication Of the New Hypothesismentioning

confidence: 99%