license: cc-by-nc-4.0
task_categories:
- audio-to-audio
MSRBench: A Benchmarking Dataset for Music Source Restoration
MSRBench is the validation dataset for the MSR Challenge 2025 (https://msrchallenge.com); it contains 250 professionally mixed audio clips and their corresponding ground-truth targets under both original mix and 12 degradation scenarios in three categories.
Download
hf download yongyizang/MSRBench --repo-type dataset --local-dir {your output dir}
Total file size after unzipping is 28.7 GB.
Folder Structure
{root-of-this-repo}/
└── {Stem_Name}.zip
(after unzipping...)
├── mixture/
│ ├── {song_id}_DT{degradation_type_id}.flac
│ ├── {song_id}_DT{degradation_type_id}.flac
│ └── ...
└── targets/
├── {song_id}.flac
├── {song_id}.flac
└── ...
Every *.flac file is 48 kHz stereo; each {stem_name} contains 250 song_ids, corresponding to 250 song clips; each song_id has 13 degradation types.
Available Stems
- Vocals
- Guitars
- Bass
- Keyboards
- Synthesizers
- Drums
- Percussions
- Orchestral Elements
Degradation Types
DT0: Original mixture produced by mixing engineers.
DT1-4: Analog and Environmental Distortions
Radio (DT1)
Simulates FM broadcasting using GNU Radio's stereo multiplex encoding/decoding blocks with standard broadcast parameters:
Signal Processing Parameters:
- Audio sampling rate: 44.1 kHz
- Quadrature rate: 220.5 kHz
- Pre-emphasis/de-emphasis time constant: 75 μs (US standard)
- Maximum frequency deviation: 75 kHz
- Stereo pilot tone: 19 kHz
Channel Model:
- Rayleigh fading: 8-sinusoid sum-of-sinusoids model with 20 Hz maximum Doppler shift
- Carrier frequency offset: σ = 0.1, max 1 kHz variations
- Multipath channel: 3-tap configuration
- Delays: [0, 0.1, 0.5] ms
- Relative magnitudes: [1.0, 0.8, 0.3]
- Noise: Additive white Gaussian noise at approximately 26 dB SNR (noise amplitude = 0.05)
Cassette (DT2)
Models magnetic tape coloration and noise using the DAW Cassette plugin by Klevgrand.[^1]
Vinyl (DT3)
Reproduces playback artifacts including crackle and mechanical noise using iZotope Vinyl,[^2] configured with the "1970" preset.
Live Sound (DT4)
Generated using:
- Impulse responses from PyRoomAcoustics
- Bandpass filtering to approximate phone microphone characteristics
- Environmental noise from the WHAM! dataset 48 kHz version mixed at approximately 20 dB SNR
DT5-8: Traditional Lossy Audio Codecs
DT5: 64 Kbps AAC
DT6: 64 Kbps MP3
DT7: 128 Kbps AAC
DT8: 128 Kbps MP3
DT9-12: Neural Audio Codecs
DT9: 22 kHz Descript Audio Codec (DAC)
DT10: 44 kHz DAC
DT11: 6 Kbps Encodec
DT12: 3 Kbps Encodec
[^1]: Klevgrand DAW Cassette [^2]: iZotope Vinyl