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arXiv · 2407.16417

On the Utility of Speech and Audio Foundation Models for Marmoset Call Analysis

Eklavya Sarkar·Mathew Magimai. -Doss
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Abstract

Marmoset monkeys encode vital information in their calls and serve as a surrogate model for neuro-biologists to understand the evolutionary origins of human vocal communication. Traditionally analyzed with signal processing-based features, recent approaches have utilized self-supervised models pre-trained on human speech for feature extraction, capitalizing on their ability to learn a signal's intrinsic structure independently of its acoustic domain. However, the utility of such foundation models remains unclear for marmoset call analysis in terms of multi-class classification, bandwidth, and pre-training domain. This study assesses feature representations derived from speech and general audio domains, across pre-training bandwidths of 4, 8, and 16 kHz for marmoset call-type and caller classification tasks. Results show that models with higher bandwidth improve performance, and pre-training on speech or general audio yields comparable results, improving over a spectral baseline.

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Eklavya Sarkar, Mathew Magimai. -Doss. 2024-07-23. On the Utility of Speech and Audio Foundation Models for Marmoset Call Analysis. https://arxiv.org/abs/2407.16417

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