Mastering guides and our test results
These guides explain how to check a track, compare a master and prepare your files. The research articles include our own measurements and the tests that changed the engine’s settings.
Suno Credentials: what stays with your master?
C2PA, automatic generator-tag cleanup and the release details in a newly exported master.
Understand credentials Workflow · Nic · verified Aug 2026How to master a Suno song—or an existing Udio export—before release
Choose a source file, read the scan and compare your master before release.
Read the guide Loudness · Twofour2, WriterWhy −14 LUFS is not the right target for every song
How playback normalization affects a master, and what to listen for when choosing a level.
See the numbers Delivery safety · NicTrue peak vs sample peak
How a waveform can cross zero after reconstruction even when no stored sample does.
Understand true peak Listening method · Twofour2, WriterWhy level-matched A/B matters
The mastered version should not win merely because it is louder.
Compare fairly Original research · NicThree hit records taught our engine to do less
Eleven purchased masters exposed false positives and removed automatic tonal moves.
Read the case study Privacy & workflow · Twofour2, WriterExtract audio from video without uploading it
Save a video’s audio as a separate WAV on your device, then download or master it.
See how it works