Auto Mix — A folder of generations in. One continuous mix out.
Suno and Udio give you great songs — at ten different volumes, in ten different tones, that hard-cut into each other. Auto Mix levels them, matches their tone and beat-matches the transitions.
What it does
Loudness matching
Every track to one LUFS target, with a before-and-after per track.
Tonal matching
Tone reconciled across generations. Harshness taken off.
Beat-matched transitions
S-curve crossfades on the beat. Optional bass swap and filter sweep.
Key and energy order
Sequenced on the Camelot wheel, not the order the files landed in.
Tracklist and chapters
Timestamped, formatted for YouTube chapters.
Video and Shorts
MP4 to 4K with title cards. Vertical 9:16 teaser.


Two screens. Drop a folder in, get a mix back.
- 01
Drop the folder in
Tracks, a folder, or a Suno or Udio zip. No preparation.
- 02
Analysis
Loudness, tone, tempo and key, measured first.
- 03
Sequencing
Running order from key and energy.
- 04
Matching
Levels to a common target. Tone reconciled.
- 05
Transitions
Dead air trimmed. Beat-matched crossfades built.
- 06
Delivery
One mix, a tracklist, and the video if you want it.
Works with
- Suno
- Udio
- Riffusion
- Stable Audio
- Mubert
- Your own exports
Accepts
- WAV
- MP3
- FLAC
- AIFF
- Suno / Udio zip
Free
$0
Hear it before you decide.
- Preview the first 3 tracks
- 15 tracks / 45 minutes
- 3 video exports a month, 1080p
- Badge on exports
Creator
$4.99/month
For posting regularly.
- Unlimited video exports, no badge
- WAV master
- 2K and 4K
- 100 tracks / 5 hours
- 15 mixes a day
Studio
$9.99/month
For long sets.
- Everything in Creator
- 200 tracks / 10 hours
- 40 mixes a day
- 25 server-rendered videos a month
Plans, prices and limits as published on automix.app, where accounts and billing are handled.
Questions
What does it work with?
Suno, Udio, Riffusion, Stable Audio and Mubert, including export zips — or your own WAV, MP3, FLAC and AIFF.
Do I need an account?
Not to preview the first three tracks.
Is this mastering?
No. It is the step before — making separate generations sound like one release.
Where do I buy it?
On automix.app. Accounts and billing live there.