dolbyatmos

Technically, mastering as we know it for a stereo song, doesn't apply for a file in Dolby Atmos format, that will be an ADM BWF file. Standart mastering means adding plugins to the master bus, but there is no dolby atmos mastering master bus in a Dolby Atmos renderer, it simply can't exist there, since the resulting audio track in Dolby Atmos consists of greater than a hundred separate channels called audio objects. They are not united in one single master bus in the master track, they remain individual.