You’ve probably heard by now that Spotify recently announced it will soon be possible for anyone to upload directly to their streaming service, without going through an agregator like TuneCore or CD Baby.
What you may not have heard yet is that along with that, they’ve also published recommendations for the best format and specifications for your music when you do.
These include some interesting details (like the fact that they support 24-bit files) and confirm several things we already knew – that they’re using ReplayGain for loudness normalization, and that the default playback reference level is approximately -14 LUFS, for example.
There’s one suggestion that may raise a few eyebrows though, and that’s the recommendation that files should peak no higher than -2 dBTP (True Peak) – thanks to Christopher Carvalo for the heads-up.
[Update – Since I posted this last week, Spotify have updated their FAQ to clarify that the -2 dBTP recommendation only applies to material mastered louder than -14 LUFS. If your material measures -14 LUFS or lower, the True Peak recommendation is -1 dBTP]