ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2025
Vocal registers expand signal diversity in vertebrate vocal communication.
Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Review
- Time after time - circadian clocks through the lens of oscillator theory.FEBS letters · 2026Review
- Exploring nonlinear phenomena in animal vocalizations through oscillator theory.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Nonlinear phenomena in vertebrate vocalizations: mechanisms and communicative functions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Nonlinear phenomena in mammalian vocal communication: an introduction and scoping review.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Vocal registers expand signal diversity in vertebrate vocal communication.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- 'Monkey yodels'-frequency jumps in New World monkey vocalizations greatly surpass human vocal register transitions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- How to analyse and manipulate nonlinear phenomena in voice recordings.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Application of nonlinear dynamics theory to understanding normal and pathologic voices in humans.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Transitions and tricks: nonlinear phenomena in the avian voice.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
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Abstract
Among air-breathing tetrapods, the most common sound production mechanism is flow-induced self-sustained tissue oscillation, aka voiced sound production, driven by inherently nonlinear physical processes. Some signature features like deterministic chaos have received particular attention in bioacoustics as nonlinear phenomena (NLP). However, one type of NLP that extends frequency ranges and enriches timbres has received much less focus in comparative bioacoustics: vocal registers. Controlled by muscle activity, vocal registers constitute distinct periodic vibratory states of vocal tissues. Transitions between vocal registers often lead to abrupt fundamental frequency jumps, which are, e.g., deliberately used in human alpine yodelling, for example. Theoretical work suggests that register transitions are caused by saddle-node-in-limit-cycle bifurcations. Here, we review the biophysical underpinnings of vocal registers and what signatures they leave in vocal fold kinematics and acoustics in the best studied species: humans. Apart from human speech and song, registers have been described only in a few animal taxa, but the occurrence of signature features suggests that vocal registers could be much more common across vertebrates than currently appreciated. We suggest that registers are a fundamental trait of voice production and that they are favoured in selection because they vastly extend and diversify the acoustic signalling space. This article is part of the theme issue 'Nonlinear phenomena in vertebrate vocalizations: mechanisms and communicative functions.'
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