Nuo Stems Comparison - v2 and v3

A basic comparison between Nuo-stems v2 and v3, the main difference is the version of Demucs used (v2 uses Demucs 3, v3 uses Demucs 4).

I'm using a loop of KRS One's Still Number One which has a fair bit of bleed and artefacting between the stem tracks to demonstrate how much cleaner Demucs 4 is.

First section - Nuo-stems v2
8 bars (4 loops) - drum, bass, melody, vocal
4 bars (2 loops) - drum, bass
4 bars (2 loops) - drum only

Note: Melody (horns) bleeds through even when turned off.

Second section - Nuo-stems v3
4 bars (2 loops) - drum, bass, melody, vocal
4 bars (2 loops) - drum, bass
4 bars (2 loops) - drum only

Third section - switch between nuo-stems version each loop so you can hear the difference. I've also added a static shot of the waveforms so you can see how they differ.

My conclusion: nuo-stems v3 separates much more cleanly, the melody (horns) does not bleed through like it does with v2. Also the v3 sounds slightly brighter.

[AnoshterHaar]

V2 was very bad. Especially when you consider the fact that there have been opensource stem extractors doing a better job for months and months