On Sun, 2007-09-16 at 16:23 +0200, Svend-Erik Kjær Madsen wrote:
Does anyone know how to manage one of these cards,
I've bought a used
one and put it in my computer without having the ADAT interface, I have
ordered one and hope to get it tomorrow, but I wasn't able to start Jack
and got the error message that jack couldn't find a propper recording
channel. I removed the card again so I can't give you the exact error
text.
I have a similar problem with my 96/8 PAD, which is also second-hand.
ALSA seems to work fine - I managed to use Hydrogen successfully with
AlSA output. The card also worked recently in a Windows machine.
From a discussion on the PlanetCCRMA list, it seems
likely that JACK
settings need to be set to something unusual.
By the way I'm running UbuntuStudio.
I'm running PlanetCCRMA on FC6.
This is the message output that I get:
16:42:29.332 Startup script...
16:42:29.332 artsshell -q terminate
JACK tmpdir identified as [/dev/shm]
16:42:29.756 Startup script terminated with exit status=256.
16:42:29.770 JACK is starting...
16:42:29.770 jackd -v -R -dalsa -r48000 -p1024 -n2 -D -Chw:1 -Phw:1 -H
16:42:29.772 JACK was started with PID=9326 (0x246e).
getting driver descriptor from /usr/lib/jack/jack_alsa.so
getting driver descriptor from /usr/lib/jack/jack_dummy.so
getting driver descriptor from /usr/lib/jack/jack_freebob.so
getting driver descriptor from /usr/lib/jack/jack_oss.so
jackd 0.103.0
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.
server `default' registered
loading driver ..
Enhanced3DNow! detected
SSE2 detected
apparent rate = 48000
creating alsa driver ... hw:1|hw:1|1024|2|48000|0|0|hwmon|swmeter|-|
32bit
control device hw:1
registered builtin port type 32 bit float mono audio
registered builtin port type 8 bit raw midi
clock source = system clock via clock_gettime
new client: alsa_pcm, id = 1 type 1 @ 0x805b008 fd = -1
configuring for 48000Hz, period = 1024 frames, buffer = 2 periods
ALSA: final selected sample format for capture: 32bit little-endian
ALSA: use 8 periods for capture
ALSA: final selected sample format for playback: 32bit little-endian
ALSA: use 8 periods for playback
new buffer size 1024
registered port alsa_pcm:capture_1, offset = 4096
registered port alsa_pcm:capture_2, offset = 8192
registered port alsa_pcm:playback_1, offset = 0
registered port alsa_pcm:playback_2, offset = 0
++ jack_rechain_graph():
client alsa_pcm: internal client, execution_order=0.
-- jack_rechain_graph()
9326 waiting for signals
16:42:31.788 Server configuration saved to "/home/nels/.jackdrc".
16:42:31.806 Statistics reset.
16:42:32.516 Client activated.
16:42:32.518 Audio connection change.
16:42:32.525 Audio connection graph change.
JACK tmpdir identified as [/dev/shm]
Enhanced3DNow! detected
SSE2 detected
new client: qjackctl-9322, id = 2 type 2 @ 0xb6c86000 fd = 15
++ jack_rechain_graph():
client alsa_pcm: internal client, execution_order=0.
client qjackctl-9322: start_fd=7, execution_order=0.
client qjackctl-9322: wait_fd=11, execution_order=1 (last client).
-- jack_rechain_graph()
16:42:32.549 XRUN callback (1).
16:42:34.533 XRUN callback (45 skipped).
jackd watchdog: timeout - killing jackd
16:42:35.164 Shutdown notification.
16:42:35.165 Client deactivated.
16:42:35.166 JACK was stopped successfully.
16:42:35.166 Post-shutdown script...
16:42:35.166 killall jackd
zombified - calling shutdown handler
cannot send request type 7 to server
cannot read result for request type 7 from server (Broken pipe)
cannot send request type 7 to server
cannot read result for request type 7 from server (Broken pipe)
jackd: no process killed
16:42:35.418 Post-shutdown script terminated with exit status=256.
Fernando at CCRMA suggested this:
Well, the message says "use 8 periods for capture
and playback" so
that's what I would try. I seem to vaguely remeber something about the
96/8 that was like this, it had a weird setting for periods or buffer
or
something like that. Start with periods=8 and see what
it tells you
(you
may need to get the buffer down).
When I tried this, JACK started successfully, but I got many xruns.
Does anyone know the appropriate settings to use?
Thanks
Michael