Astral Stem Engine

Our own source-separation model

ResearchAudio & MusicEngine

Live stem separation is the feature that decides whether a DJ tool feels modern. Buying it means depending on someone else's service, their pricing and their latency. So we are training our own.

The training set pairs full mixes with their original stems — roughly fifteen hundred pairs and growing — which is the part that actually determines the ceiling. The target is parity with the separation quality people already expect from the leading commercial tools, running locally.

When it is ready it becomes a component, not a product: Astral DJ DAW and Astral Portal both consume it directly.

At a glance

Stage
Training
Training set
~1,500 mix/stem pairs
Target
Parity with leading commercial separation

What it does

Trained in-house

On paired mix-and-stem data rather than fine-tuned on top of a third-party model.

Runs locally

No API dependency, no per-track cost, no upload of your material.

Shared component

Consumed directly by Astral DJ DAW and Astral Portal.