The Sound Check challenge has stressed out a lot of artists, but not Zedd. The DJ-producer declared he had so much fun choosing between songs that it’s now the only kind of press he wants to do.

The song you’re listening to on your iPhone is a bit too quiet, so you adjust the volume. Perfect. Then the song ends, and the next one blasts your ears. You fumble your iPhone from your pocket and ...

I've been using iVolume for several years to set the volume level tags of all my music in iTunes. When I started using it I think iTunes still had a really terrible volume normalization algorithm ...