Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal
Formants, or resonance frequencies of the upper vocal tract, are an essential part of acoustic communication. Articulatory gestures—such as jaw, tongue, lip, and soft palate movements—shape formant structure in human vocalizations, but little is known about how nonhuman mammals use those gestures to...
Published in: | Annals of the New York Academy of Sciences |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/4ec680b8-4766-4276-8ef3-647aa7acd3b9 2024-09-15T18:10:39+00:00 Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal Goncharova, Maria Jadoul, Yannick Reichmuth, Colleen Fitch, W. Tecumseh Ravignani, Andrea 2024-08 https://pure.au.dk/portal/en/publications/4ec680b8-4766-4276-8ef3-647aa7acd3b9 https://doi.org/10.1111/nyas.15189 http://www.scopus.com/inward/record.url?scp=85200253174&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/4ec680b8-4766-4276-8ef3-647aa7acd3b9 info:eu-repo/semantics/openAccess Goncharova , M , Jadoul , Y , Reichmuth , C , Fitch , W T & Ravignani , A 2024 , ' Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal ' , Annals of the New York Academy of Sciences , vol. 1538 , no. 1 , pp. 107-116 . https://doi.org/10.1111/nyas.15189 articulation formants Phoca vitulina source-filter theory vocal communication vocal tract article 2024 ftuniaarhuspubl https://doi.org/10.1111/nyas.15189 2024-09-05T00:45:07Z Formants, or resonance frequencies of the upper vocal tract, are an essential part of acoustic communication. Articulatory gestures—such as jaw, tongue, lip, and soft palate movements—shape formant structure in human vocalizations, but little is known about how nonhuman mammals use those gestures to modify formant frequencies. Here, we report a case study with an adult male harbor seal trained to produce an arbitrary vocalization composed of multiple repetitions of the sound wa. We analyzed jaw movements frame-by-frame and matched them to the tracked formant modulation in the corresponding vocalizations. We found that the jaw opening angle was strongly correlated with the first (F1) and, to a lesser degree, with the second formant (F2). F2 variation was better explained by the jaw angle opening when the seal was lying on his back rather than on the belly, which might derive from soft tissue displacement due to gravity. These results show that harbor seals share some common articulatory traits with humans, where the F1 depends more on the jaw position than F2. We propose further in vivo investigations of seals to further test the role of the tongue on formant modulation in mammalian sound production. Article in Journal/Newspaper harbor seal Phoca vitulina Aarhus University: Research Annals of the New York Academy of Sciences 1538 1 107 116 |
institution |
Open Polar |
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Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
topic |
articulation formants Phoca vitulina source-filter theory vocal communication vocal tract |
spellingShingle |
articulation formants Phoca vitulina source-filter theory vocal communication vocal tract Goncharova, Maria Jadoul, Yannick Reichmuth, Colleen Fitch, W. Tecumseh Ravignani, Andrea Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal |
topic_facet |
articulation formants Phoca vitulina source-filter theory vocal communication vocal tract |
description |
Formants, or resonance frequencies of the upper vocal tract, are an essential part of acoustic communication. Articulatory gestures—such as jaw, tongue, lip, and soft palate movements—shape formant structure in human vocalizations, but little is known about how nonhuman mammals use those gestures to modify formant frequencies. Here, we report a case study with an adult male harbor seal trained to produce an arbitrary vocalization composed of multiple repetitions of the sound wa. We analyzed jaw movements frame-by-frame and matched them to the tracked formant modulation in the corresponding vocalizations. We found that the jaw opening angle was strongly correlated with the first (F1) and, to a lesser degree, with the second formant (F2). F2 variation was better explained by the jaw angle opening when the seal was lying on his back rather than on the belly, which might derive from soft tissue displacement due to gravity. These results show that harbor seals share some common articulatory traits with humans, where the F1 depends more on the jaw position than F2. We propose further in vivo investigations of seals to further test the role of the tongue on formant modulation in mammalian sound production. |
format |
Article in Journal/Newspaper |
author |
Goncharova, Maria Jadoul, Yannick Reichmuth, Colleen Fitch, W. Tecumseh Ravignani, Andrea |
author_facet |
Goncharova, Maria Jadoul, Yannick Reichmuth, Colleen Fitch, W. Tecumseh Ravignani, Andrea |
author_sort |
Goncharova, Maria |
title |
Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal |
title_short |
Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal |
title_full |
Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal |
title_fullStr |
Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal |
title_full_unstemmed |
Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal |
title_sort |
vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal |
publishDate |
2024 |
url |
https://pure.au.dk/portal/en/publications/4ec680b8-4766-4276-8ef3-647aa7acd3b9 https://doi.org/10.1111/nyas.15189 http://www.scopus.com/inward/record.url?scp=85200253174&partnerID=8YFLogxK |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_source |
Goncharova , M , Jadoul , Y , Reichmuth , C , Fitch , W T & Ravignani , A 2024 , ' Vocal tract dynamics shape the formant structure of conditioned vocalizations in a harbor seal ' , Annals of the New York Academy of Sciences , vol. 1538 , no. 1 , pp. 107-116 . https://doi.org/10.1111/nyas.15189 |
op_relation |
https://pure.au.dk/portal/en/publications/4ec680b8-4766-4276-8ef3-647aa7acd3b9 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/nyas.15189 |
container_title |
Annals of the New York Academy of Sciences |
container_volume |
1538 |
container_issue |
1 |
container_start_page |
107 |
op_container_end_page |
116 |
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1810448240174170112 |