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BirdSet: A Large-Scale Dataset for Audio Classification in Avian Bioacoustics
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abstract
Deep learning (DL) has greatly advanced audio classification, yet the field is limited by the scarcity of large-scale benchmark datasets that have propelled progress in other domains. While AudioSet is a pivotal step to bridge this gap as a universal-domain dataset, its restricted accessibility and limited range of evaluation use cases challenge its role as the sole resource. Therefore, we introduce BirdSet, a large-scale benchmark dataset for audio classification focusing on avian bioacoustics. BirdSet surpasses AudioSet with over 6,800 recording hours ($\uparrow\!17\%$) from nearly 10,000 classes ($\uparrow\!18\times$) for training and more than 400 hours ($\uparrow\!7\times$) across eight strongly labeled evaluation datasets. It serves as a versatile resource for use cases such as multi-label classification, covariate shift or self-supervised learning. We benchmark six well-known DL models in multi-label classification across three distinct training scenarios and outline further evaluation use cases in audio classification. We host our dataset on Hugging Face for easy accessibility and offer an extensive codebase to reproduce our results.
Forward citations
Cited by 4 Pith papers
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Adversarial Training Improves Generalization Under Distribution Shifts in Bioacoustics
Output-space adversarial training improved clean-data performance and adversarial robustness of two bird sound classifiers across seven soundscape test sets, and stabilized prototype-based explanations.
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The iNaturalist Sounds Dataset
A new large-scale, weakly labeled audio dataset of 230K recordings across 5,569 species, with benchmarks showing that models trained on it transfer to downstream bioacoustic classification.
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Can Tokens Compete? Token Representations against Supervised CNN Backbones for BirdCLEF+ 2026
For BirdCLEF+ 2026, a frozen Perch-v2 probe plus a trained HGNetV2-B0 SED net and non-bird prototype heads reach private LB 0.936, while WavTokenizer codec tokens collapse and four general audio transformers lag under...
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Distilling Spectrograms into Tokens: Fast and Lightweight Bioacoustic Classification for BirdCLEF+ 2025
The authors report that a Word2Vec-style model on K-means spectrogram tokens classifies BirdCLEF+ 2025 soundscapes in about 6 minutes, reaching a public ROC-AUC of 0.559, far below transfer-learning baselines.
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