Convergence in voice fundamental frequency during synchronous speech

Joint speech behaviours where speakers produce speech in unison are found in a variety of everyday settings, and have clinical relevance as a temporary fluency-enhancing technique for people who stutter. It is currently unknown whether such synchronisation of speech timing among two speakers is also...

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Autores principales:	Abigail R. Bradshaw, Carolyn McGettigan
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/053f534a33804d50a4e14cc43ebcd373
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spelling	oai:doaj.org-article:053f534a33804d50a4e14cc43ebcd3732021-11-04T06:07:18ZConvergence in voice fundamental frequency during synchronous speech1932-6203https://doaj.org/article/053f534a33804d50a4e14cc43ebcd3732021-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8530294/?tool=EBIhttps://doaj.org/toc/1932-6203Joint speech behaviours where speakers produce speech in unison are found in a variety of everyday settings, and have clinical relevance as a temporary fluency-enhancing technique for people who stutter. It is currently unknown whether such synchronisation of speech timing among two speakers is also accompanied by alignment in their vocal characteristics, for example in acoustic measures such as pitch. The current study investigated this by testing whether convergence in voice fundamental frequency (F0) between speakers could be demonstrated during synchronous speech. Sixty participants across two online experiments were audio recorded whilst reading a series of sentences, first on their own, and then in synchrony with another speaker (the accompanist) in a number of between-subject conditions. Experiment 1 demonstrated significant convergence in participants’ F0 to a pre-recorded accompanist voice, in the form of both upward (high F0 accompanist condition) and downward (low and extra-low F0 accompanist conditions) changes in F0. Experiment 2 demonstrated that such convergence was not seen during a visual synchronous speech condition, in which participants spoke in synchrony with silent video recordings of the accompanist. An audiovisual condition in which participants were able to both see and hear the accompanist in pre-recorded videos did not result in greater convergence in F0 compared to synchronisation with the pre-recorded voice alone. These findings suggest the need for models of speech motor control to incorporate interactions between self- and other-speech feedback during speech production, and suggest a novel hypothesis for the mechanisms underlying the fluency-enhancing effects of synchronous speech in people who stutter.Abigail R. BradshawCarolyn McGettiganPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Abigail R. Bradshaw Carolyn McGettigan Convergence in voice fundamental frequency during synchronous speech
description	Joint speech behaviours where speakers produce speech in unison are found in a variety of everyday settings, and have clinical relevance as a temporary fluency-enhancing technique for people who stutter. It is currently unknown whether such synchronisation of speech timing among two speakers is also accompanied by alignment in their vocal characteristics, for example in acoustic measures such as pitch. The current study investigated this by testing whether convergence in voice fundamental frequency (F0) between speakers could be demonstrated during synchronous speech. Sixty participants across two online experiments were audio recorded whilst reading a series of sentences, first on their own, and then in synchrony with another speaker (the accompanist) in a number of between-subject conditions. Experiment 1 demonstrated significant convergence in participants’ F0 to a pre-recorded accompanist voice, in the form of both upward (high F0 accompanist condition) and downward (low and extra-low F0 accompanist conditions) changes in F0. Experiment 2 demonstrated that such convergence was not seen during a visual synchronous speech condition, in which participants spoke in synchrony with silent video recordings of the accompanist. An audiovisual condition in which participants were able to both see and hear the accompanist in pre-recorded videos did not result in greater convergence in F0 compared to synchronisation with the pre-recorded voice alone. These findings suggest the need for models of speech motor control to incorporate interactions between self- and other-speech feedback during speech production, and suggest a novel hypothesis for the mechanisms underlying the fluency-enhancing effects of synchronous speech in people who stutter.
format	article
author	Abigail R. Bradshaw Carolyn McGettigan
author_facet	Abigail R. Bradshaw Carolyn McGettigan
author_sort	Abigail R. Bradshaw
title	Convergence in voice fundamental frequency during synchronous speech
title_short	Convergence in voice fundamental frequency during synchronous speech
title_full	Convergence in voice fundamental frequency during synchronous speech
title_fullStr	Convergence in voice fundamental frequency during synchronous speech
title_full_unstemmed	Convergence in voice fundamental frequency during synchronous speech
title_sort	convergence in voice fundamental frequency during synchronous speech
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/053f534a33804d50a4e14cc43ebcd373
work_keys_str_mv	AT abigailrbradshaw convergenceinvoicefundamentalfrequencyduringsynchronousspeech AT carolynmcgettigan convergenceinvoicefundamentalfrequencyduringsynchronousspeech
_version_	1718445131862900736

Convergence in voice fundamental frequency during synchronous speech

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