Sorry to say that it took me this long to finally have time free to continue the quest for 5.1.
Anyway, I tried Pablo’s setup, and it seems to work!
I would guess I tried those settings before, but arguable I did something different because now the server will start.
Things that may or may not have to do with it:
Close Ardour before restarting Jack (Related or not, I tried some stuff and the variation after I closed Ardour worked).
Set channels to [default], not 2 4 or 6
03:57:50.923 /usr/bin/jackd -dalsa -r48000 -p1024 -n2 -D -Chw:0,0 -Phw:0,3
03:57:50.939 JACK was started with PID=3938.
no message buffer overruns
jackd 0.116.1
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK compiled with System V SHM support.
loading driver ..
apparent rate = 48000
creating alsa driver ... hw:0,3|hw:0,0|1024|2|48000|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
03:57:52.988 Server configuration saved to "/home/sander/.jackdrc".
03:57:52.989 Statistics reset.
03:57:52.991 Client activated.
03:57:52.995 JACK connection change.
03:57:53.003 JACK connection graph change.
Now I have also 16 outputs. Whaat?
This is a big improvement. Although all audio from my previous project comes from the front right corner, I’ll have something to start with.
At the moment I have 2/2 quadrophonic analog sound connected so I cannot test the center speaker or the woofer, but here’s the current weird routing I’ve found out:
Front-left: Ch. 1, 5, 9
Front-right: Ch. 2, 6, 10
Rear-left: Ch. 3
Rear-right: Ch. 4
Unused: Ch. 7, 8, 11 to 16
Uhhh… so how are you supposed to route this? Is there an easy way to auto-detect this, like some players know where to play what (if you play a surround track)? Because the card… it has 6 outs, not 16. And players have a way of knowing what goes where.
Thanks for thinking with me!