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Lookup NU author(s): Dr Laurence White
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Acoustic metrics of contrastive speech rhythm, based on vocalic and intervocalic interval durations, are intended to capture stable typological differences between languages. They should consequently be robust to variation between speakers, sentence materials, and measurers. This paper assesses the impact of these sources of variation on the metrics %V (proportion of utterance comprised of vocalic intervals), VarcoV (rate-normalized standard deviation of vocalic interval duration), and nPVI-V (a measure of the durational variability between successive pairs of vocalic intervals). Five measurers analyzed the same corpus of speech: five sentences read by six speakers of Standard Southern British English. Differences between sentences were responsible for the greatest variation in rhythm scores. Inter-speaker differences were also a source of significant variability. However, there was relatively little variation due to segmentation differences between measurers following an agreed protocol. An automated phone alignment process was also used: Rhythm scores thus derived showed good agreement with the human measurers. A number of recommendations for researchers wishing to exploit contrastive rhythm metrics are offered in conclusion. © 2010 Acoustical Society of America.
Author(s): Wiget L, White L, Schuppler B, Grenon I, Rauch O, Mattys SL
Publication type: Article
Publication status: Published
Journal: Journal of the Acoustical Society of America
Online publication date: 23/03/2010
ISSN (print): 0001-4966
ISSN (electronic): 1520-8524
Publisher: Acoustical Society of America
PubMed id: 20329856
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