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Perceptual learning of degraded speech by minimizing prediction error.
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In: Proc Natl Acad Sci U S A , 113 (12) E1747-E1756. (2016) (2016)
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Can English perceivers match cantonese auditory and visual prosody?
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The consistency and stability of acoustic and visual cues for different prosodic attitudes
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The relative contributions of duration and amplitude to the perception of Japanese-accented English as a function of L2 experience
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The influence of modality and speaking style on the assimilation type and categorization consistency of non-native speech
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Exploring the role of brain oscillations in speech perception in noise : intelligibility of isochronously retimed speech
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Abstract:
A growing body of evidence shows that brain oscillations track speech. This mechanism is thought to maximise processing efficiency by allocating resources to important speech information, effectively parsing speech into units of appropriate granularity for further decoding. However, some aspects of this mechanism remain unclear. First, while periodicity is an intrinsic property of this physiological mechanism, speech is only quasi-periodic, so it is not clear whether periodicity would present an advantage in processing. Second, it is still a matter of debate which aspect of speech triggers or maintains cortical entrainment, from bottom-up cues such as fluctuations of the amplitude envelope of speech to higher level linguistic cues such as syntactic structure. We present data from a behavioural experiment assessing the effect of isochronous retiming of speech on speech perception in noise. Two types of anchor points were defined for retiming speech, namely syllable onsets and amplitude envelope peaks. For each anchor point type, retiming was implemented at two hierarchical levels, a slow time scale around 2.5Hz and a fast time scale around 4Hz. Results show that while any temporal distortion resulted in reduced speech intelligibility, isochronous speech anchored to P-centers (approximated by stressed syllable vowel onsets) was significantly more intelligible than a matched anisochronous retiming, suggesting a facilitative role of periodicity defined on linguistically motivated units in processing speech in noise.
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Keyword:
brain; speech perception; syllables; XXXXXX - Unknown
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URL: http://handle.uws.edu.au:8081/1959.7/uws:36881
https://doi.org/10.3389/fnhum.2016.00430
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Perceiving foreign-accented auditory-visual speech in noise : the influence of visual form and timing information
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