Billboard on Dolby Atmos

[kfbkfb]

My idea for mapping Atmos -> Quad (and then CBS SQ matrix encoding), using a 7.1.4 Atmos setup (Figure 3):
https://www.quadraphonicquad.com/forums/threads/dolby-atmos®-faq.26939/#post-452222

Atmos C -> Quad CF
Atmos R -> Quad RF
Atmos Rs -> Quad RC
Atmos Rrs -> Quad RB
Atmos Lrs -> Quad LB
Atmos Ls -> Quad LC
Atmos L -> Quad LF

Overhead (nearest to RF, for example): 85% to RF, 5% each to RB,LB,LF, same for other 3 overhead speakers content.

The Atmos overhead content probably wouldn't sound like it's overhead though.


Kirk Bayne

 

[par4ken]

My idea for mapping Atmos -> Quad (and then CBS SQ matrix encoding), using a 7.1.4 Atmos setup (Figure 3):
https://www.quadraphonicquad.com/forums/threads/dolby-atmos®-faq.26939/#post-452222

Atmos C -> Quad CF
Atmos R -> Quad RF
Atmos Rs -> Quad RC
Atmos Rrs -> Quad RB
Atmos Lrs -> Quad LB
Atmos Ls -> Quad LC
Atmos L -> Quad LF

Overhead (nearest to RF, for example): 85% to RF, 5% each to RB,LB,LF, same for other 3 overhead speakers content.

The Atmos overhead content probably wouldn't sound like it's overhead though.


Kirk Bayne

That does sound logical. However given that many/most mixes are front heavy I would normally fold side and back into the quad rear.

 

[jimfisheye]

If you use the computer HTPC style, you can do any custom speaker management you wish. The Dolby Atmos decoder will speaker manage the .4 in 7.1.4 to the 4 quad channels in 4.0 by default. But you would be free to alter that as you wanted on the computer.

If the stock OS audio control panel doesn't let you do enough, use a DAW app like a plugin for a media player. Install a virtual audio device like Loopback, Blackhole, Soundflower, etc. System audio output to the virtual device. Make aggregate device of the normal output audio interface (USB audio device or HDMI AV device) + the virtual device with the OS audio utility. (Audio MIDI Setup on Mac, ASIO4ALL on Windows) Assign aggregate device to the DAW. This inserts the DAW app between any media player you launch and your outputs. Now you can do whatever the heck you want! Dial up your routing and any processing in the DAW and send to the outputs.

A little geeky on the initial setup. Just turn it on and hit play afterwords. If you were going to mess around and connect various things up anyway, might as well stick to old school component style setups like this and put all the controls under your fingers.