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KMID : 0917520060130020019
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Journal of Speech Sciences
2006 Volume.13 No. 2 p.19 ~ p.33
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Acoustic Features of Phonatory Offset-Onset in the Connected Speech between a Female Stutterer and Non-Stutterers
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Han Ji-Yeon
Lee Ok-Bun
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Abstract
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The purpose of this paper was to examine acoustical characteristics of phonatory offset-onset mechanism in the connected speech of female adults with stuttering and normal nonfluency. The phonatory offset-onset mechanism refers to the laryngeal articulatory gestures. Those gestures are required to mark word boundaries in phonetic contexts of the connected speech. This mechanism included 7 patterns based on the speech spectrogram. This study showed the acoustic features in the connected speech in the production of female adults with stuttering (n=1) and normal nonfluency (n=3). Speech tokens in V_V, V_H, and V_S contexts were selected for the analysis. Speech samples were recorded by Sound Forge, and the spectrographic analysis was conducted using Praat. Results revealed a stuttering (with a type of block) female exhibited more laryngealization gestures in the V_V context. Laryngealization gesture was more characterized by a complete glottal stop or glottal fry both in V_H and in V_S contexts. The results were discussed from theoretical and clinical perspectives.
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KEYWORD
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phonatory offset-onset, connected speech, stutterer
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