A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis
Although mammalian vocalizations are predominantly harmonically structured, they can exhibit an acoustic complexity with nonlinear vocal sounds, including deterministic chaos and frequency jumps. Such sounds are normative events in mammalian vocalizations, and can be directly traceable to the nonlin...
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ftpubmed:oai:pubmedcentral.nih.gov:5056341 2023-05-15T16:35:55+02:00 A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis Cazau, Dorian Adam, Olivier Aubin, Thierry Laitman, Jeffrey T. Reidenberg, Joy S. 2016-10-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5056341/ http://www.ncbi.nlm.nih.gov/pubmed/27721476 https://doi.org/10.1038/srep31660 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5056341/ http://www.ncbi.nlm.nih.gov/pubmed/27721476 http://dx.doi.org/10.1038/srep31660 Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep31660 2016-10-23T00:09:31Z Although mammalian vocalizations are predominantly harmonically structured, they can exhibit an acoustic complexity with nonlinear vocal sounds, including deterministic chaos and frequency jumps. Such sounds are normative events in mammalian vocalizations, and can be directly traceable to the nonlinear nature of vocal-fold dynamics underlying typical mammalian sound production. In this study, we give qualitative descriptions and quantitative analyses of nonlinearities in the song repertoire of humpback whales from the Ste Marie channel (Madagascar) to provide more insight into the potential communication functions and underlying production mechanisms of these features. A low-dimensional biomechanical modeling of the whale’s U-fold (vocal folds homolog) is used to relate specific vocal mechanisms to nonlinear vocal features. Recordings of living humpback whales were searched for occurrences of vocal nonlinearities (instabilities). Temporal distributions of nonlinearities were assessed within sound units, and between different songs. The anatomical production sources of vocal nonlinearities and the communication context of their occurrences in recordings are discussed. Our results show that vocal nonlinearities may be a communication strategy that conveys information about the whale’s body size and physical fitness, and thus may be an important component of humpback whale songs. Text Humpback Whale PubMed Central (PMC) Scientific Reports 6 1 |
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Article Cazau, Dorian Adam, Olivier Aubin, Thierry Laitman, Jeffrey T. Reidenberg, Joy S. A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis |
topic_facet |
Article |
description |
Although mammalian vocalizations are predominantly harmonically structured, they can exhibit an acoustic complexity with nonlinear vocal sounds, including deterministic chaos and frequency jumps. Such sounds are normative events in mammalian vocalizations, and can be directly traceable to the nonlinear nature of vocal-fold dynamics underlying typical mammalian sound production. In this study, we give qualitative descriptions and quantitative analyses of nonlinearities in the song repertoire of humpback whales from the Ste Marie channel (Madagascar) to provide more insight into the potential communication functions and underlying production mechanisms of these features. A low-dimensional biomechanical modeling of the whale’s U-fold (vocal folds homolog) is used to relate specific vocal mechanisms to nonlinear vocal features. Recordings of living humpback whales were searched for occurrences of vocal nonlinearities (instabilities). Temporal distributions of nonlinearities were assessed within sound units, and between different songs. The anatomical production sources of vocal nonlinearities and the communication context of their occurrences in recordings are discussed. Our results show that vocal nonlinearities may be a communication strategy that conveys information about the whale’s body size and physical fitness, and thus may be an important component of humpback whale songs. |
format |
Text |
author |
Cazau, Dorian Adam, Olivier Aubin, Thierry Laitman, Jeffrey T. Reidenberg, Joy S. |
author_facet |
Cazau, Dorian Adam, Olivier Aubin, Thierry Laitman, Jeffrey T. Reidenberg, Joy S. |
author_sort |
Cazau, Dorian |
title |
A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis |
title_short |
A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis |
title_full |
A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis |
title_fullStr |
A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis |
title_full_unstemmed |
A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis |
title_sort |
study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5056341/ http://www.ncbi.nlm.nih.gov/pubmed/27721476 https://doi.org/10.1038/srep31660 |
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Humpback Whale |
genre_facet |
Humpback Whale |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5056341/ http://www.ncbi.nlm.nih.gov/pubmed/27721476 http://dx.doi.org/10.1038/srep31660 |
op_rights |
Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
op_doi |
https://doi.org/10.1038/srep31660 |
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Scientific Reports |
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1766026224995401728 |