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SONBRA Dataset
SONBRA Database This repository contains 10,000 samples of records from the SONBRA database. It features characteristics extracted from 250 unique musical tracks for each of the 8 genres included in the database. Each track was divided into 30-second seg
File Size211.2 MB
Data TypeDataset
Published2025
Licensecc-by-4.0
Total Views134
Total Downloads16
SONBRA Database
This repository contains 10,000 samples of records from the SONBRA database. It features characteristics extracted from 250 unique musical tracks for each of the 8 genres included in the database. Each track was divided into 30-second segments.
Specifications
Database Statistics
| Metric | Value |
|---|---|
| Total samples | 10,000 |
| Original tracks | 250 |
| Represented genres | 8 |
| Segments per track | 5 |
| Segment duration | 30s |
Genre Distribution
The dataset has a balanced distribution of genres:
- Bossa Nova
- Forró
- Funk
- Pagode
- Pisadinha
- Samba
- Samba-enredo
- Sertanejo
Segment Structure
- Begin – Initial 30 seconds
- Middle_1 – 30 seconds before the center point
- Middle – 15 seconds before and after the center point
- Middle_2 – 30 seconds after the center point
- End – Final 30 seconds
Extracted Features
- RMS
- ZCR
- ZCR Sum
- Mel spectrogram
- Spectral bandwidth
- Spectral centroid
- Spectral rolloff
- Chroma STFT
- Chroma CQT
- Chroma CENS
- Tonnetz
- Tempogram
- Fourier Tempogram
- MFCC
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Files are hosted on the source repository. Click download to access the full dataset.
Ribeiro, Anderson Vinicius (2025). SONBRA Dataset. https://doi.org/10.5281/zenodo.17958967