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Temporal information in speech: acoustic, auditory and linguistic aspects
1Department of Phonetics and Linguistics, University College London, U.K.
Summary
Speech acoustics are newly described using three temporal features: envelope, periodicity, and fine-structure. This framework highlights the crucial role of temporal dynamics in speech perception and linguistic contrasts for all listeners.
Area of Science:
- Acoustic Phonetics
- Speech Science
- Linguistics
Background:
- Temporal properties of speech are crucial for linguistic contrasts.
- Previous acoustic models may not fully capture temporal speech dynamics.
Purpose of the Study:
- Introduce a novel framework for speech acoustic analysis based solely on temporal features.
- Investigate the role of temporal aspects in linguistic contrasts.
Main Methods:
- Developed a new framework categorizing speech into three temporal features: envelope, periodicity, and fine-structure.
- Analyzed acoustic manifestations, auditory, and perceptual correlates of each feature.
Main Results:
- Identified three distinct temporal features in speech: envelope, periodicity, and fine-structure.
- Each feature exhibits unique acoustic, auditory, perceptual, and linguistic contrast roles.
Conclusions:
- The proposed three-featured temporal system offers a new perspective on speech acoustics.
- This framework is applicable to understanding speech in both hearing-impaired and normal listeners.