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The Effect of Ageing on Speech Rhythm: A Study on Zurich German

Pellegrino, Elisa; He, Lei; Dellwo, Volker (2018). The Effect of Ageing on Speech Rhythm: A Study on Zurich German. In: Speech Prosody 2018, Poznan, 13 June 2018 - 16 June 2018. ISCA, 133-137.

Abstract

Speech segmental and suprasegmental characteristics vary considerably across the life span, for example, due to degenerative changes in speech production mechanisms and neuro-muscolar control. A great deal of research on the acoustic correlates of adult speakers’ voice has focussed on changes in voice quality, vowel formant patterns, f0, amplitude and speech rate. Only little attention has been paid on speech rhythm variability due to advancing age. Here we quantified between-language rhythmic variability in terms of the durational characteristics of consonantal and vocalic intervals (henceforth CV intervals). We compared the segmental durational variability of two groups of Zurich German speakers. Group 1: 16 young adults, aged from 18 to 32 years; group 2: 10 older adults, aged from 66 to 81 years. For both groups we analyzed 20 sentences in Zurich German from the TEVOID Corpus. Between-speaker durational variability across age was quantified through a variety of interval-based metrics: segment rate, %V, deltaC, deltaV, VarcoC, VarcoV, rPVI-C and nPVI-V. Results showed that rhythmic differences between younger and older adults are largely accountable for by speech rate differences. Segment rate, %V and raw measures of CV interval durational variability (deltaV, deltaC and r-PVI-C) showed effects between younger and older adults. Rate normalized metrics (VarcoC, VarcoV and n-PVI-V) did not differ significantly between the two age-groups.

Additional indexing

Item Type:Conference or Workshop Item (Paper), not_refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Computational Linguistics
06 Faculty of Arts > Zurich Center for Linguistics
Dewey Decimal Classification:490 Other languages
890 Other literatures
410 Linguistics
Scopus Subject Areas:Social Sciences & Humanities > Language and Linguistics
Social Sciences & Humanities > Linguistics and Language
Language:English
Event End Date:16 June 2018
Deposited On:18 Jun 2018 09:01
Last Modified:25 May 2024 03:32
Publisher:ISCA
OA Status:Green
Publisher DOI:https://doi.org/10.21437/SpeechProsody.2018-27
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