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Interspeaker variation in habitual speaking rate: additional evidence
Ying-Chiao Tsao1, Gary Weismer, Kamran Iqbal
1Human Communication Studies/Communicative Disorders, 800 N. State College Boulevard, P.O. Box 6868, California State University-Fullerton, Fullerton, CA 92834-6868, USA. ytsao@fullerton.edu
Slow and fast talkers exhibit distinct articulation rate control. This study confirms differences in how habitually fast versus slow speakers adjust speech rate, suggesting a biological basis for these variations.
Area of Science:
- Speech Science
- Linguistics
- Phonetics
Background:
- Individual differences in speech rate are observable.
- Previous research classified talkers as habitually fast or slow.
Purpose of the Study:
- To investigate if habitually fast and slow talkers differ in articulation rate manipulation.
- To test the hypothesis of distinct rate control strategies.
Main Methods:
- Thirty talkers, previously classified as slow (n=15) or fast (n=15), produced sentences at seven different rates.
- A magnitude production paradigm was employed to elicit varied speech rates.
Main Results:
- Statistically significant quadratic regression functions were found for articulation rate.
- Significant differences in y-intercepts were observed between slow and fast talker groups for both males and females.
Conclusions:
- This study constructively replicates prior findings on intertalker rate differences.
- Results support a biological basis for variations in habitual speech rate.
- Differences in articulation rate manipulation persist across different speech tasks and materials.
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