A comparison of multiple speech tempo measures: Inter-correlations and discriminating power

Robert Lennon, Leendert Plug, Erica Gold

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Studies that quantify speech tempo on acoustic grounds typically use one of various rate measures. Explicit comparisons of the distributions generated by these measures are rare, although they help assess the robustness of generalisations across studies; moreover, for forensic purposes it is valuable to compare measures in terms of their discriminating power. We compare five common rate measures-canonical and surface syllable and phone rates, and CV segment rate-calculated over fluent stretches of spontaneous speech produced by 30 English speakers. We report deletion rates and correlations between the five measures and assess discriminating powers using likelihood ratios. Results suggest that in a sizeable English corpus with normal deletion rates, these five rates are closely inter-correlated and have similar discriminating powers; therefore, for common analytical purposes the choice between these measures is unlikely to substantially affect outcomes.
LanguageEnglish
Title of host publicationProceedings of International Congress of Phonetic Sciences, August 2019, Melbourne
Publication statusAccepted/In press - 12 Feb 2019
Event19th International Congress of the Phonetic Sciences - Melbourne Convention and Exhibition Centre, Melbourne, Australia
Duration: 5 Aug 20199 Aug 2019
https://www.icphs2019.org/

Conference

Conference19th International Congress of the Phonetic Sciences
Abbreviated titleICPhS 2019
CountryAustralia
CityMelbourne
Period5/08/199/08/19
Internet address

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Cite this

Lennon, R., Plug, L., & Gold, E. (Accepted/In press). A comparison of multiple speech tempo measures: Inter-correlations and discriminating power. In Proceedings of International Congress of Phonetic Sciences, August 2019, Melbourne
Lennon, Robert ; Plug, Leendert ; Gold, Erica. / A comparison of multiple speech tempo measures : Inter-correlations and discriminating power. Proceedings of International Congress of Phonetic Sciences, August 2019, Melbourne. 2019.
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Lennon, R, Plug, L & Gold, E 2019, A comparison of multiple speech tempo measures: Inter-correlations and discriminating power. in Proceedings of International Congress of Phonetic Sciences, August 2019, Melbourne. 19th International Congress of the Phonetic Sciences, Melbourne, Australia, 5/08/19.

A comparison of multiple speech tempo measures : Inter-correlations and discriminating power. / Lennon, Robert; Plug, Leendert; Gold, Erica.

Proceedings of International Congress of Phonetic Sciences, August 2019, Melbourne. 2019.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T2 - Inter-correlations and discriminating power

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AU - Gold, Erica

PY - 2019/2/12

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N2 - Studies that quantify speech tempo on acoustic grounds typically use one of various rate measures. Explicit comparisons of the distributions generated by these measures are rare, although they help assess the robustness of generalisations across studies; moreover, for forensic purposes it is valuable to compare measures in terms of their discriminating power. We compare five common rate measures-canonical and surface syllable and phone rates, and CV segment rate-calculated over fluent stretches of spontaneous speech produced by 30 English speakers. We report deletion rates and correlations between the five measures and assess discriminating powers using likelihood ratios. Results suggest that in a sizeable English corpus with normal deletion rates, these five rates are closely inter-correlated and have similar discriminating powers; therefore, for common analytical purposes the choice between these measures is unlikely to substantially affect outcomes.

AB - Studies that quantify speech tempo on acoustic grounds typically use one of various rate measures. Explicit comparisons of the distributions generated by these measures are rare, although they help assess the robustness of generalisations across studies; moreover, for forensic purposes it is valuable to compare measures in terms of their discriminating power. We compare five common rate measures-canonical and surface syllable and phone rates, and CV segment rate-calculated over fluent stretches of spontaneous speech produced by 30 English speakers. We report deletion rates and correlations between the five measures and assess discriminating powers using likelihood ratios. Results suggest that in a sizeable English corpus with normal deletion rates, these five rates are closely inter-correlated and have similar discriminating powers; therefore, for common analytical purposes the choice between these measures is unlikely to substantially affect outcomes.

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Lennon R, Plug L, Gold E. A comparison of multiple speech tempo measures: Inter-correlations and discriminating power. In Proceedings of International Congress of Phonetic Sciences, August 2019, Melbourne. 2019