I've managed to do a Dolby Atmos mix from my HOA mix (via O3A 7.1.2 decoder), and I'm getting positional audio from the airpod pros when I playback the MP4 on an iOS device, which is very cool :-)
Weirdly if I look at the MP4 in QuickTime player it says it's 5.1 Dolby Digital Plus. If I import it into REAPER there are six channels. Can't for the life of me figure out how to output an MP4 with the proper atmos mix, Although I'm wondering if the extra channels could be magically included in this signal somehow. Any Atmos experts have an idea? Should I be seeing 7.1.2 or 7.1.4, 10/12 channels output?
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