Spleeter

About

Deezer's source separation library. U-Net on magnitude spectrograms, TensorFlow-based. Extremely popular (28k GitHub stars) due to ease of use and speed. Separates into 2/4/5 stems. Quality is lower than Demucs/HTDemucs on acoustic music but it's fast and reliable. Widely used in production and as a baseline.

Relevance

Lower quality alternative to Demucs for bluegrass. The spectrogram-only approach produces more artifacts on acoustic instruments with complex harmonics. Useful as a fast baseline or when Demucs is too slow. Same fixed-stem limitation as all other tools.

Mentions

• ../entities/demucs — higher quality alternative
• ../entities/open-unmix — more hackable alternative
• Paper: ISMIR 2019 Late-Breaking (not on arxiv)

Links

• GitHub: https://github.com/deezer/spleeter (28.2k stars)
• Install: pip install spleeter