Phonetic evidence for two types of disfluency
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چکیده
Disfluency, such as pause (silences), filled pause (e.g., ‘um’, ‘uh’), repetition (e.g., ‘the the’) and cutoff word (e.g., ‘hori[zontal]-’), is a common part of human speech that occurs at a rate of 6 to 10 per 100 words [2, 5]. According to one model of speech production [8], there are two types of disfluency: disfluency at the internal planning stage (e.g., wordretrieval difficulties), and disfluency at the external monitoring stage (e.g., self-correction of speech errors). The current study provides phonetic evidence for the two types of disfluency by examining word durations before different types of disfluency in the Switchboard corpus [6]. The results showed only a marginal increase in the durations of words before cutoffs, but a large increase in the durations of words before repetitions, silences and filled pauses, suggesting internal processing difficulty before noncutoff disfluency, but not before cutoff disfluency.
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تاریخ انتشار 2015