If you're checking your #DolbyAtmos mix on an iPhone, there are some pitfalls. If you have an .MP4 file you made in the #DolbyRenderer, it will be default open in the QT player. But QT player will stop playing your file when the screen switches off - it's a video player, not a music player. So you might instead open your .MP4 with another app. But most apps will play a spatialized stereo fold down! Only a few apps can play true Atmos.

#musicproduction #DolbyAtmosMusic