What are LUFS and why does -14 matter?

LUFS (Loudness Units relative to Full Scale) is the standard measurement for perceived audio loudness. Spotify, Apple Music, and YouTube automatically adjust every song to around -14 LUFS. If your track is louder, they turn it down. If it's quieter, they leave it as is—making it sound weak. Matching this target gives you consistent playback and competitive loudness.

Use the Loudness Penalty Analyzer or LUFS analyzer to measure a file before release, then use Automatic Mastering if you need to hit a target safely.