DocumentCode :
2269882
Title :
Context-dependent relevance of burst and transitions for perceived place in stops: it´s in production, not perception
Author :
Smits, Roel
Author_Institution :
Dept. of Phonetics & Linguistics, Univ. Coll. London, UK
Volume :
4
fYear :
1996
fDate :
3-6 Oct 1996
Firstpage :
2470
Abstract :
Several studies on place perception of prevocalic stop consonants have shown that the apparent perceptual weight of release burst and formant transitions depends on the vowel context: bursts carry higher perceptual weight in high front vowel contexts like /i/ than in low non-front vowel contexts like /a/, while the reverse holds for formant transitions. This finding is generally interpreted as reflecting a context-dependent “reweighting” of burst and transition cues by the perceptual system. In this paper it is shown that the observed effect can be entirely accounted for by contextual variation of the distributions of the relevant cues themselves: Naturally produced stop bursts appear to be acoustically more distinctive in high front vowel contexts than in low non-front vowel contexts, while the reverse is true for formant transitions. The apparently context-dependent perceptual weight of burst and transitions can be reproduced with such cue distributions, even if the classification model itself contains fixed, context-independent linear boundaries. This claim is supported with acoustical and perceptual data of a burst-splicing experiment involving burst-spliced stop-vowel utterances containing the stops /p, t, k/ and vowels /a, i, y, u/
Keywords :
pattern classification; speech recognition; acoustical data; apparent perceptual weight; burst-spliced stop-vowel utterances; burst-splicing experiment; classification model; context-dependent burst cue reweighting; context-dependent relevance; context-dependent transition cue reweighting; fixed context-independent linear boundaries; formant transitions; high front vowel contexts; low nonfront vowel contexts; naturally produced stop bursts; perceptual data; perceptual system; prevocalic stop consonant place perception; release burst; vowel context; Context modeling; Educational institutions; Explosions; Inspection; Performance evaluation; Production; Spectrogram; Speech recognition; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Spoken Language, 1996. ICSLP 96. Proceedings., Fourth International Conference on
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-3555-4
Type :
conf
DOI :
10.1109/ICSLP.1996.607311
Filename :
607311
Link To Document :
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