Header

UZH-Logo

Maintenance Infos

Vowel convergence does not affect auditory speaker discriminability in humans and machine in a case study on Swiss German dialects


Pellegrino, Elisa; Dellwo, Volker; Kathiresan, Thayabaran (2022). Vowel convergence does not affect auditory speaker discriminability in humans and machine in a case study on Swiss German dialects. International Journal of Speech, Language and the Law, 29(1):60-84.

Abstract

In this study, we examined whether the convergence in interlocutors’ vowel acous-tics leads to decreasing discriminability between interlocutors’ voices. Ten pairs of Grison and Zürich German speakers produced lexical items before and after dialogue interactions with evidence of vowel convergence in post-dialogue produc-tions. In Experiment 1, native and non-native Swiss German listeners discrimi-nated pairs of speakers whose speech was obtained pre- and post-dialogue. Results showed that listeners’ sensitivity (A’) was higher for native than non-native listeners, but comparable for pre- and post-dialogue recordings. The observed negative corre-lation between voice discrimination and the acoustic distance in formant space was mainly driven by a single speaker pair. In Experiment 2, the speaker recognition performance of an i-vector-based software was compared in pre- and post-dialogue speech. Results revealed no difference in the system performance between the two conditions. The findings suggest that vowel convergence does not compromise voice discriminability under the given experimental conditions

Abstract

In this study, we examined whether the convergence in interlocutors’ vowel acous-tics leads to decreasing discriminability between interlocutors’ voices. Ten pairs of Grison and Zürich German speakers produced lexical items before and after dialogue interactions with evidence of vowel convergence in post-dialogue produc-tions. In Experiment 1, native and non-native Swiss German listeners discrimi-nated pairs of speakers whose speech was obtained pre- and post-dialogue. Results showed that listeners’ sensitivity (A’) was higher for native than non-native listeners, but comparable for pre- and post-dialogue recordings. The observed negative corre-lation between voice discrimination and the acoustic distance in formant space was mainly driven by a single speaker pair. In Experiment 2, the speaker recognition performance of an i-vector-based software was compared in pre- and post-dialogue speech. Results revealed no difference in the system performance between the two conditions. The findings suggest that vowel convergence does not compromise voice discriminability under the given experimental conditions

Statistics

Citations

Altmetrics

Downloads

34 downloads since deposited on 04 Nov 2022
25 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Computational Linguistics
06 Faculty of Arts > Zurich Center for Linguistics
Special Collections > NCCR Evolving Language
08 Research Priority Programs > Language and Space
06 Faculty of Arts > Linguistic Research Infrastructure (LiRI)
Dewey Decimal Classification:490 Other languages
890 Other literatures
410 Linguistics
Language:English
Date:2022
Deposited On:04 Nov 2022 15:25
Last Modified:27 Jun 2024 01:41
Publisher:Equinox Publishing
ISSN:1748-8885
OA Status:Green
Publisher DOI:https://doi.org/10.1558/ijsll.19954
Project Information:
  • : FunderUniversity Research Priority Program Language and Space
  • : Grant ID
  • : Project TitleRhythmic Accommodation between Swiss German Dialects
  • : FunderSNSF
  • : Grant ID51NF40_180888
  • : Project TitleNCCR Evolving Language (phase I)