25 Feb
2014
25 Feb
'14
5 p.m.
On Tue, Feb 25, 2014 at 10:52 AM, Fons Adriaensen <fons(a)linuxaudio.org>wrote;wrote:
On Tue, Feb 25, 2014 at 10:09:16AM -0500, Paul Davis
wrote:
clearly i have losted a RAM card or something. I could have sworn it worked
as i described because otherwise i could never have tested it on an RME
card without avoiding hw:N
i should run the memory checker on myself these days.
the option doesn't alter what the JACK
backend sees from ALSA (or
wherever). it changes which channels get represented by JACK ports.
Wrong. If things were as you claim, this should just work:
(on a 64-ch card)
fons@hypatia:~> jackd -P70 -p256 -t2000 -u -dalsa -dhw:0,0 -r48000 -p256
-n2 -i16 -o16
...
ALSA: cannot set channel count to 16 for capture
ALSA: cannot configure capture channel
cannot load driver module alsa
The -i and -o values ARE used as parameters to ALSA, and
not just to determine how many of the available channels
are mapped to Jack ports. You can also verify this in the
sources.