---
task_categories:
- audio-classification
---
# NBMSet24: Nocturnal Bird Migration Dataset

Boxed annotation from : 
https://arxiv.org/abs/2412.03633

Dataset architecture and BuilderScript is inspired from BirdSet
https://huggingface.co/datasets/DBD-research-group/BirdSet

## How to download this dataset?

Install huggingface datasets package:
`pip install datasets`

Run this python code:
```
from datasets import load_dataset

dataset = load_dataset(
    path="ppeyret/NBMSet24",
    name="NBMSet24",
    cache_dir="path/to/where/you/want/your/cached/data",
    num_proc=None, # put and integer (number of workers) here if you want to use multiprecessing
    trust_remote_code=True
)
```

## Changes compared to Zenodo database

Changes compared to original dataset in Zenodo:
- Audio data have been converted to mono and resampled to 32kHz
- Frequency values of annotations with low_freq or high_freq > 16kHz have been set to 16kHz.
- Label mispelling corrections
- Annots with low_freq or high_freq to -1 (due to audacity bug) have been corrected
- Removed audio files that have no annotations

Still need to fix: 
- Some original annotations have no label. They have been mapped to the class "other" for now.

**Caution:**

The species list is different between train and test splits:

Species of test split that are not in train split:

{'Buteo buteo', 'Podiceps cristatus'}

Species of training split that are not in test split:

{'Sitta europaea', 'Coccothraustes coccothraustes', 'Cettia cetti', 'Larus fuscus', 'Motacilla cinerea', 'Tetrax tetrax', 'Corvus monedula', 'Lullula arborea', 'Mareca strepera', 'Corvus frugilegus', 'Larus michahellis', 'Regulus regulus', 'Larus argentatus', 'Anser domesticus', 'Anthus campestris', 'Himantopus himantopus', 'Tringa glareola', 'Garrulus glandarius', 'Caprimulgus europaeus', 'Apus apus', 'Lophophanes cristatus', 'Melanitta fusca', 'Charadrius morinellus', 'Oriolus oriolus', 'Mareca penelope', 'Botaurus stellaris', 'Anthus hodgsoni', 'Scolopax rusticola', 'Ardea purpurea', 'Pyrrhula pyrrhula', 'Anthus spinoletta', 'Dendrocopos major', 'Bubo bubo', 'Curruca communis', 'Ichthyaetus melanocephalus', 'Columba palumbus', 'Human', 'Phoenicurus ochruros', 'Recurvirostra avosetta', 'Loxia curvirostra', 'Streptopelia decaocto', 'Carduelis carduelis', 'Sturnus vulgaris', 'Branta canadensis', 'Regulus ignicapilla', 'Phasianus colchicus', 'Phylloscopus trochilus', 'Corvus corax', 'Branta bernicla', 'Podiceps nigricollis', 'Cuculus canorus', 'Hydrocoloeus minutus', 'Gallus gallus', 'Anas acuta', 'Anser anser', 'Tringa erythropus', 'Porzana porzana', 'Asio otus', 'Serinus serinus'}