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Published on: September 27, 2024
Incomplete compensation without further adaptation: A large-sample acoustic analysis of bite block speech in masking
Timothy K Murphy1,2, Hung-Shao Cheng2, Caroline A Niziolek2,3
1Department of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison, 600 Highland Ave, Madison, Wisconsin 53792, USA.
Abstract:
The speech system maintains intelligibility even when articulatory movements are restricted. Researchers often study this compensatory mechanism using a bite block to constrain jaw movement. While early reports indicated that speakers fully negate bite block effects on vowel acoustics, more recent reports found only partial compensation, suggesting the potential for continual adjustments (adaptation). We investigated a large sample (n = 55) of speakers who performed a bite block task while their auditory feedback was masked. We found incomplete immediate compensation and no adjustments over time, suggesting that adaptation for bite block effects on vowel acoustics requires auditory feedback.
