Intro to NUO-STEMS 4
NUO-STEMS 4 is still in alpha. For NUO-STEMS 3, see docs for NUO-STEMS v3.
What is NUO-STEMS 4?​


NUO-STEMS 4 is a tool that allows you separate your tracks into 4 parts: drums, bass, other (melody, etc) and vocals.
What's new in NUO-STEMS 4 compared to NUO-STEMS 3?​
Main new features:
- Ability to create Natively linked Traktor Pro 4 STEMS 🔥
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- New & improved quality of STEMS algorithms
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- more, see docs 🙂
Modes​
NUO-STEMS 4 has these modes:
- Native Traktor Pro 4 - Getting Started
- Legacy Traktor - Getting Started
- DAW / Non-Traktor - Getting Started
Traktor Pro 3 compatibility​
.stem.m4a files created in NUO-STEMS 4 are not compatible with Traktor Pro 3.
When trying to load .stem.m4a files created in NUO-STEMS 4 in Traktor Pro 3, you will see an error:
Can not read stem metadata for file: FILE.stem.m4a. Detail: version: 2 is not supported.
This is a deliberate decision for NUO-STEMS 4 to not support Traktor Pro 3 - I want you to support Traktor team by upgrading to Traktor Pro 4. I strongly believe that 50$ (as of Black Friday deals) is a great value for what you're getting - it's an investment into future of Traktor.
Traktor Pro 3 was released October 18, 2018. Which is more than 7 years ago.
If you need to use .stem.m4a in Traktor Pro 3, you can continue to use NUO-STEMS 3 with Traktor Pro 3.
You can read more about this in Legacy / Export Mode section.