Your Werewolf (Customer) asked a question.
Binaural True Peak Question
I've searched for an answer on here, and maybe I've just overlooked it, but are the "Dolby Atmos" loudness readings what I need to be most concerned about? I'm mixing my first Atmos project, and when using the the album assembler to analyze a song, I'm below -18 LKFS and -1dBTP, but on the binaural measurement I'm over. Is that acceptable for delivery, or do I need to turn it down to hit the numbers on the Binaural Loudness measurements?
I've attached a screenshot of the loudness measurements for reference.
I've attached a screenshot of the loudness measurements for reference.
My first suggestion would be to reference the delivery requirements for the streaming service/label/distributor you are delivering to (you can find a list of deliver specs here: https://professionalsupport.dolby.com/s/article/Where-can-I-find-delivery-specification-for-Dolby-Atmos-service-providers)
However, most of the delivery requirements do not specifically call out binaural true peak measurements. As you have seen, since binaural involves a summing of large mixes to 2 channels, there will inevitably be a loudness increase compared to your Atmos mix. I would recommend trying to stay below 0 dbTP (or -0.1 dbTP) if possible. If you are having trouble identifying where the peaking is occurring, you can export the binaural loudness report timeline which will show the true peak measurement every second.
-B