Sparse Autoencoders Make Audio Foundation Models more Explainable
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arXiv
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| Hauptverfasser: | , , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866914205000531968 |
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| author | Mariotte, Théo Lebourdais, Martin Almudévar, Antonio Tahon, Marie Ortega, Alfonso Dugué, Nicolas |
| author_facet | Mariotte, Théo Lebourdais, Martin Almudévar, Antonio Tahon, Marie Ortega, Alfonso Dugué, Nicolas |
| contents | Audio pretrained models are widely employed to solve various tasks in speech processing, sound event detection, or music information retrieval. However, the representations learned by these models are unclear, and their analysis mainly restricts to linear probing of the hidden representations. In this work, we explore the use of Sparse Autoencoders (SAEs) to analyze the hidden representations of pretrained models, focusing on a case study in singing technique classification. We first demonstrate that SAEs retain both information about the original representations and class labels, enabling their internal structure to provide insights into self-supervised learning systems. Furthermore, we show that SAEs enhance the disentanglement of vocal attributes, establishing them as an effective tool for identifying the underlying factors encoded in the representations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_24793 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sparse Autoencoders Make Audio Foundation Models more Explainable Mariotte, Théo Lebourdais, Martin Almudévar, Antonio Tahon, Marie Ortega, Alfonso Dugué, Nicolas Sound Artificial Intelligence Machine Learning Audio and Speech Processing Audio pretrained models are widely employed to solve various tasks in speech processing, sound event detection, or music information retrieval. However, the representations learned by these models are unclear, and their analysis mainly restricts to linear probing of the hidden representations. In this work, we explore the use of Sparse Autoencoders (SAEs) to analyze the hidden representations of pretrained models, focusing on a case study in singing technique classification. We first demonstrate that SAEs retain both information about the original representations and class labels, enabling their internal structure to provide insights into self-supervised learning systems. Furthermore, we show that SAEs enhance the disentanglement of vocal attributes, establishing them as an effective tool for identifying the underlying factors encoded in the representations. |
| title | Sparse Autoencoders Make Audio Foundation Models more Explainable |
| topic | Sound Artificial Intelligence Machine Learning Audio and Speech Processing |
| url | https://arxiv.org/abs/2509.24793 |