Related Experiment Video
Updated: Jul 5, 2025
09:09
Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
Published on: September 27, 2024
459
Compensation for coarticulation despite a midway speaker change: Reassessing effects and implications
Navin Viswanathan1,2, Ana Rinzler3,4, Damian G Kelty-Stephen4
1Department of Communication Sciences & Disorders, The Pennsylvania State University, State College, Pennsylvania, United States of America.
Plos One
|January 12, 2024
Summary
Listeners do not adjust their perception of speech sounds when the speaker changes, challenging theories that explain how we understand speech despite variations. This suggests speech perception is speaker-specific.
Area of Science:
- Psycholinguistics
- Auditory Perception
- Speech Science
Background:
- Speech perception exhibits constancy despite variations caused by coarticulation.
- The spectral contrast account proposes listeners compensate for coarticulation (CfC) based on preceding sound frequencies.
Purpose of the Study:
- To investigate if listeners compensate for coarticulation across different speakers.
- To determine if prior experience modulates cross-talker compensation for coarticulation.
Main Methods:
- Three listener groups were exposed to stimuli with different talker-change alerting conditions (none, explicit, implicit).
- Listeners' compensation for coarticulation (CfC) was assessed in within- and across-talker conditions.
Main Results:
- All groups showed significant CfC in within-talker conditions.
- No evidence of CfC was found in the across-talker condition, regardless of alerting condition.
Conclusions:
- Results challenge speaker-neutral explanations for compensation for coarticulation.
- Listeners' speech perception adaptations appear to be speaker-specific, not general.
- Experimental findings highlight the need to consider real-world listening demands beyond constrained tasks.
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