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Delayed sidetone in relation to the reading of different materials
1Department of Speech, The Ohio State University, Columbus, Ohio.
Journal of Psycholinguistic Research
|November 8, 2013
Summary
Delayed sidetone significantly impacts speech production. Factors like syllable structure, length, and familiarity nonlinearly affect reading time, with longer or unfamiliar phrases increasing delays.
Area of Science:
- Speech Production
- Auditory Feedback
- Human-Computer Interaction
Background:
- Delayed sidetone, the auditory feedback of one's own voice played back with a delay, is a known factor influencing speech.
- Understanding how various linguistic and acoustic features interact with delayed sidetone is crucial for fields like speech therapy and voice user interface design.
Purpose of the Study:
- To investigate the effects of delayed sidetone on reading time.
- To determine how linguistic variables such as syllable count, syllable type, phoneme count, and language familiarity influence reading time under delayed sidetone conditions.
Main Methods:
- Speakers read short phrases with varying numbers of syllables, syllable types (e.g., vowel-consonant vs. consonant-vowel), and phoneme counts.
- Participants experienced different levels of delayed sidetone (0.0-0.30 seconds).
- Reading times were measured and analyzed in relation to linguistic variables and sidetone delay.
Main Results:
- Increased syllables and unfamiliar material disproportionately increased reading time.
- Two- and four-sound syllables were more affected by delayed sidetone than three-sound syllables.
- Vowel-consonant syllables took longer to read than consonant-vowel syllables under delayed sidetone.
- Additional phonemes linearly increased reading time when syllable type was constant.
- Syllabic characteristics, material length, and familiarity affected reading time nonlinearly.
Conclusions:
- Delayed sidetone significantly alters speech production, with effects varying based on linguistic complexity.
- Syllable structure, phoneme count, and material familiarity are key determinants of reading time under auditory feedback delay.
- These findings have implications for understanding speech motor control and designing effective auditory feedback systems.
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