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submitted 3 months ago by Its_Suzie@pawb.social to c/196@lemmy.blahaj.zone

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[-] SkunkWorkz@lemmy.world 50 points 3 months ago* (last edited 3 months ago)

The most complex Atmos system you can build is 24.1.10 so that’s 35 audio output channels. Sure the audio is packed on disc in 12-16 channels. But Atmos is object based, the Atmos receiver can calculate where the sound should play across those 35 output channels.

[-] 9point6@lemmy.world 12 points 3 months ago* (last edited 3 months ago)

I was aware that there was algorithmic expansion that could be done, but I did think it was a maximum of 12 real channels (L, C, R, SL, SR, RL, RR, sub, 4x overheads)

What are the other 4? Do they add channels between the ear height and overheads?

[-] GreatAlbatross@feddit.uk 5 points 3 months ago

It depends on the version of atmos.

Full fat cinema atmos can scale to (iirc) 512 channels. (Things may have changed since I last was involved!)

In that case, it's a 7.1 bed, and all the other channels are effectively coordinates in the room, and the processor steers objects between them in real time, rather than having defined tracks.

[-] Hupf@feddit.de 3 points 3 months ago

https://www.dolby.com/about/support/guide/speaker-setup-guides/

[-] 9point6@lemmy.world 3 points 3 months ago* (last edited 3 months ago)

In Atmos, channels going in doesn't necessarily align with channels coming out

Speaker setups are regarding channels going out, a jack like the one in the OP would be an input jack as no speaker would need more than two poles

Delete: not sure I'm actually adding anything with this

[-] SkunkWorkz@lemmy.world 3 points 3 months ago* (last edited 3 months ago)

I think those are purely object based channels that a TrueHD receiver can’t use. So that’s for audio sources that will be added across the other channels and subtract where necessary to remove duplicate sounds.