Topic
Automated mixing and mastering services only hear what you upload. This guide pulls together what two of them, RoEx Automix and LANDR, actually ask for in their own help pages: lossless WAV, every stem starting at 0:00, honest labels, no limiter on the bus and real headroom. Then a pre-upload checklist and why we think the prep matters more than the service you pick.
Workflows
Most "streaming loudness target" charts mix official numbers with figures nobody at the platform ever published. We went back to each service's own pages on 24 Oct 2026. Spotify publishes a full spec, Apple and Amazon describe the method but no number, YouTube says normalisation-style processing is off for music, and for TIDAL and Deezer we found no current artist-facing page at all. Here is what is documented, what is reported, and a target plan you can defend.
Workflows
A desk review of four AI mastering options from what their makers publish, with no scores yet. Prices and features are easy to compare. The real differences are in the terms, from eMastered's clause letting it train on uploads, to LANDR's opt-in training programme, to Ozone, which runs in your DAW and needs no upload at all.
Music tech
We spent a month writing practical guides on releasing music, from registering a song to reading the statement that pays for it. This is the short version, in the order you will need it, with each step pointing back to the guide and the official page behind it.
Industryvia Spotify for Artists
LANDR and Ozone's Master Assistant both learn from finished records and push your mix toward a reference and a loudness target. That makes them fast and cheap at a good mix's last 10%, but a 472-listener public blind test still put two human engineers on top. Here is how the assistants work, how to test them fairly, and what they cost.
AIvia LANDR
One email a week: the music-tech and AI-in-music news that mattered, and what we think about it.