What happens
when AI mixes your track?
Two ways are live: pick from hundreds of ready presets, or drop your track and say what you want. More modes on the way.
Pick a tab, hear the result
Which instrument shall we mix?
Same stem, before and after — through real spectrograms.
What the system did
- ▸Sub +1.5 dB · locks the bottom of the kick
- ▸Multiband comp 2.5:1 · glue + punch
- ▸Transient shaper +20% · sharper hits
- ▸Tape sat 8% · warmer texture
This list isn't filler — for every preset, we log which knob was set to which value.
Ways to mix
Two are live now, more on the way. They all run the same engine.
New mode
A new mix mode is in the works. Coming soon.
Preset Mix
Audition hundreds of presets, pick one — single-stem mix.
New mode
A new mix mode is in the works. Coming soon.
Track Mix
Drop your track, say what you want — mix it through chat.
The engine behind every mix
Hundreds of Presets
A curated, ready-to-use library for vocals, drums, bass and master.
Mix by Chat
Drop your track, say what you want — each message renders a new version.
Producer Signatures
11 distinct signature characters — from modern trap to clean pop.
AI Mastering
Spotify, Apple Music, YouTube — targets per-platform LUFS.
Not a magic trick — measured infrastructure
We measured how every plugin actually behaves. The planner consults those numbers when it builds your chain.
A curated library for vocals, drums, bass and mastering. Each one is built for a specific character — not a random plugin stack.
DSP behaviour modelled across distinct genre characters. Pick one when you want a specific vibe.
5,000+ sweep measurements give us each plugin's compression, EQ and saturation curves. Knob behaviour isn't guessed.
Frequently asked
You upload your audio, pick a ready preset or say what you want, and the AI produces a professional mix. The output is studio-quality.
Yes — no technical experience needed. Pick a preset or write what you want in plain words, like 'make it punchier'. The system handles the rest.
.WAV, .MP3 and .FLAC. Use .WAV for best results.
Upload a single track and type what you want in the chat. The system mixes it and sends the result back; not happy? Give it a new instruction.
Change the instructions and try again. Iterate as many times as it takes.
Yes — all files are encrypted in transit and at rest, and only you can access them.
Seimix is an AI mix and mastering tool. You sign in with your Google account so we can create your Seimix account, keep you signed in, and save your mixes. We only use your name and email address for this — we never post anything to your account or access any other data.