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Global temporal characteristics of English clear and conversational speech

Authors :
Ann R. Bradlow
Josh Viau
Rajka Smiljanic
Source :
The Journal of the Acoustical Society of America. 121:3043-3043
Publication Year :
2007
Publisher :
Acoustical Society of America (ASA), 2007.

Abstract

This study investigated the effect of hyperarticulated, intelligibility‐enhancing clear speech on global temporal characteristics in paragraph‐length utterances. The results of sentence‐in‐noise listening tests showed a consistent clear speech intelligibility gain across the utterances indicating that the talkers successfully maintained clear speech articulatory modifications throughout the paragraphs. We then explored temporal properties of the speech signal in terms of the percentage and variability of vocalic and consonantal intervals (following Ramus et al., 1999). Consonantal and vocalic intervals were lengthened equally in clear speech: %V remained stable across speaking styles. Moreover, coefficients of variation for both consonantal and vocalic intervals remained stable across clear and conversational speech, suggesting that global temporal properties remain rather stable in the two speaking styles. There was also evidence of an increase in the number of prosodic phrases and of vocalic and consona...

Details

ISSN :
00014966
Volume :
121
Database :
OpenAIRE
Journal :
The Journal of the Acoustical Society of America
Accession number :
edsair.doi...........1227c1842988dd6d12497a0d610d9472
Full Text :
https://doi.org/10.1121/1.4781730