Papers › AudioLog: LLMs-Powered Long Audio Logging with Hybrid Token-Semantic Contrastive Learning

AudioLog: LLMs-Powered Long Audio Logging with Hybrid Token-Semantic Contrastive Learning

21 Nov 2023arXiv:2311.12371archive 2025-07-28

Jisheng Bai, Han Yin, Mou Wang, Dongyuan Shi, Woon-Seng Gan, Jianfeng Chen, Susanto Rahardja

Previous studies in automated audio captioning have faced difficulties in accurately capturing the complete temporal details of acoustic scenes and events within long audio sequences. This paper presents AudioLog, a large language models (LLMs)-powered audio logging system with hybrid token-semantic contrastive learning. Specifically, we propose to fine-tune the pre-trained hierarchical token-semantic audio Transformer by incorporating contrastive learning between hybrid acoustic representations. We then leverage LLMs to generate audio logs that summarize textual descriptions of the acoustic environment. Finally, we evaluate the AudioLog system on two datasets with both scene and event annotations. Experiments show that the proposed system achieves exceptional performance in acoustic scene classification and sound event detection, surpassing existing methods in the field. Further analysis of the prompts to LLMs demonstrates that AudioLog can effectively summarize long audio sequences. To the best of our knowledge, this approach is the first attempt to leverage LLMs for summarizing long audio sequences.

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Tasks

Acoustic Scene Classification Audio captioning Contrastive Learning Event Detection Multi-Task Learning Scene Classification Sound Event Detection

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Absolute Position Encodings Adam Attention BPE Contrastive Learning Dense Connections Dropout Label Smoothing Layer Normalization Linear Layer Multi-Head Attention Position-Wise Feed-Forward Layer Residual Connection Softmax Transformer

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