MVSep Piano model is based on MDX23C architecture. It produces high quality separation. Model was compared with other two models (Demucs4HT (6 stems) and GSEP) on two validation sets. First validation includes electric piano as part of piano, while 2nd only contains acoustic piano (grand piano). Used metrics is SDR: the more the better.
See the results in table below.
|Validation type||Algorithm name
|Demucs4HT (6 stems)||GSEP||MVSep Piano 2023 (Type 0)||MVSep Piano 2023 (Type 1)|
|Validation (only grand piano)||4.5591||5.7180||7.2651||7.2948|
The model is available in two variants. In the first variant, the Piano model is used directly on the entire track. In the second variant, the track is first divided into two parts, vocal and instrument, and then the Piano model is applied to the instrument part only. In the second case, the separation quality is usually a bit better.