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Speech perception as pattern recognition
1Department of Linguistics, University of Alberta, Edmonton, Canada.
The Journal of the Acoustical Society of America
|June 1, 1997
Summary
The double-weak theory proposes that speech perception relies on simple auditory pattern recognition, supported by orderly articulatory processes. This framework explains how listeners decode context-dependent speech sounds effectively.
Area of Science:
- Phonetics
- Speech Perception
- Auditory Neuroscience
Background:
- Speech production and perception are distinct yet cooperative systems.
- Phonological units are context-dependent, influenced by articulatory processes.
- Existing theories include motor theory and auditory theories of phonetics.
Purpose of the Study:
- To present theoretical and empirical support for the double-weak approach to phonetics.
- To investigate the relationship between articulatory gestures and auditory patterns in speech perception.
- To reconcile aspects of motor and auditory theories of speech perception.
Main Methods:
- Development of the double-weak theoretical framework.
- Design and execution of a perceptual experiment with a four-dimensional stimulus continuum.
- Analysis of listener responses using a 10-category /hVC/ response set.
Main Results:
- Empirical data largely align with the predictions of the double-weak framework.
- Evidence suggests that simplified auditory patterns facilitate perception.
- Articulatory stylization accommodates perceptual system limitations.
Conclusions:
- The double-weak approach offers a viable model for understanding speech perception.
- Listeners utilize straightforward pattern recognition for decoding speech.
- The interplay between articulatory and auditory systems is crucial for effective communication.
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