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Discrimination of foreign language speech contrasts by English monolinguals and French/English bilinguals
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Comparing the consistency and distinctiveness of speech produced in quiet and in noise
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Abstract:
The study investigated whether properties of speech produced in noise (Lombard speech) were more distributed (thus potentially more distinct) and/or more consistent than those from speech produced in quiet. This was examined for auditory tokens by measuring vowel space dispersion and by determining the consistency of formant production across repeated instances. Vowel space was not expanded for speech produced in noise; there was a tendency for formants to be produced more consistently in noise (with less variation in formant frequency across repeated instances) but this was not a secure effect. The distinctiveness and consistency of Lombard visual speech were also examined using motion capture data. Relative distinctiveness was determined by comparing the amount of mouth and jaw motion for speech produced in noise and quiet; relative consistency by comparing the size of correlations for motion produced across repeated instances in the noise or in quiet conditions. Mouth, and jaw motion was larger for speech in noise, however there was no greater association between the movement measures for repeated instances of speech in noise compared to in quiet. We also examined whether the correlation between auditory and motion properties was greater for speech produced in noise than in quiet. It was found that the association between speech RMS energy and jaw motion was greater for speech in noise. The results show that although Lombard speech affects both auditory and visible articulatory properties in ways likely to enhance speech perception it does not increase production consistency.
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Keyword:
200404 - Laboratory Phonetics and Speech Science; 970120 - Expanding Knowledge in Languages; Communication and Culture
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URL: https://doi.org/10.1016/j.csl.2013.02.002
http://handle.uws.edu.au:8081/1959.7/538953
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Does elderly speech recognition in noise benefit from spectral and visual cues?
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Interplay of informational content and energetic masking in speech perception in noise
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How visual timing and form information affect speech and non-speech processing
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Auditory and auditory-visual Lombard speech perception by younger and older adults
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Visual speech form influences the speed of auditory speech processing
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How far out? The effect of peripheral visual speech on speech perception
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Spontaneous synchronization between repetitive speech and rhythmic gesture
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The effect of visual speech timing and form cues on the processing of speech and nonspeech
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Recognizing prosody across modalities, face areas and speakers : examining perceivers' sensitivity to variable realizations of visual prosody
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An orthographic effect in phoneme processing, and its limitations
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Testing audio-visual familiarity effects on speech perception in noise
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Auditory speech processing is affected by visual speech in the periphery
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The effect of seeing the interlocutor on auditory and visual speech production in noise
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