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    Demucs4 HT (vocals, drums, bass, other)

    Algorithm Demucs4 HT splits track into 4 stems (bass, drums, vocals, other). It's now best for bass/drums/other separation. It was released in year 2022 and has 3 versions: 

    • htdemucs_ft - best quality, but slow
    • htdemucs - lower quality, but fast
    • htdemucs_6s - it has 2 additional stems "piano" and "guitar" (quality for them is still so-so).

    Link: https://github.com/facebookresearch/demucs/tree/ht/demucs

    Quality table

    Algorithm name Multisong dataset Synth dataset MDX23 Leaderboard
    SDR Bass SDR Drums SDR Other SDR Vocals SDR Instrumental SDR Vocals SDR Instrumental SDR Vocals
    htdemucs_ft 12.05 11.24 5.74 8.33 14.63 10.23 9.94 9.08
    htdemucs 11.74 10.90 5.57 8.18 14.49 --- ---  
    htdemucs_6s 11.42 10.59 2.63 8.17 14.48 --- ---  
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