Talking while chewing: Speaker response to natural perturbation of speech
Abstract
A study was conducted to investigate the acoustic and articulatory effects of chewing during speech. The proposed that speakers in control of this type of highly complex articulatory perturbation during speech were to show evidence of optimizing to maintain acoustic-auditory speech goals. Acoustic distinctions were expected to be maintained between sibilants when perturbation forced significant articulatory differences in tongue shape. The stimuli consisted of the carrier phrase 'I'm a-----', followed by one of the three words containing the phonemes of interest, such as 'saw', 'shaw', or 'raw'. Stimuli were presented in four blocks for each condition of the investigations, with each block containing four repetitions of each word, resulting in 32 tokens for each word.
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