抄録
Emotional information included in the voice is strongly influenced by its acoustic parameters. On the assumption
that the emotion of sudden emergency is a mix of 'surprise' and 'fright', we have started a study to distinguish
sudden emergency voices of the Japanese vowel [a] from ordinary voices using [a] by analysis and comparisons of acoustic parameters included in these voices. And our final purpose is to establish a method of an urgent
stopping of the winch by the distinction of a sudden emergency voice, [a].
In this paper, we investigated the change of pitch frequency (F0) and the duration of the vowel [a] voiced
imitating emotions by vocalists, and we explored the parameters which enables one to distinguish [a] voiced in a
sudden emergency.
As a result of this investigation, we see that the parameter of distinction is the START value on the F0
curve. If this value reaches l.71 times higher than the F0 of a neutral emotion, we can see that the voice has
been uttered in a sudden emergency.
