[linux-audio-user] Recording ADAT inputs on RME hammerfall 9636/52

Mark Knecht markknecht at gmail.com
Tue Jun 20 23:07:06 EDT 2006

On 6/20/06, Stephen Cameron <smcameron at yahoo.com> wrote:
> Well, here's what I've tried so far tonight:
> Ran jack as root.
> Ran qjackctl as root.

Let's try running Jack from within QJC. That way you can set up a Jack
profile with settings that make sense and then you can save them.

I suspect, for no good reason, that the mixer and the Hammerfall
wouldn't be happy if the Hammerfall is really running at 22K.

In QJC make sure  that you are choosing the right soundcard. Is it
possible that you have a built in sound card that is set up for card 0
and the Hammerfall is actually card 1?

mark at lightning ~ $ cat /proc/asound/cards
 0 [CK804          ]: NFORCE - NVidia CK804
                      NVidia CK804 with ALC850 at 0xda103000, irq 225
 1 [DSP            ]: H-DSP - Hammerfall DSP
                      RME Hammerfall HDSP 9652 at 0xda000000, irq 66
mark at lightning ~ $

If yours looks anything like this then the default Jack setting is
running Jack with the built in card. However since you see 18 IO's it
sounds like the Hammerfall and not a built in unless they are virtual

>From within QJC I start Jack here with the command shown, and again
this is my HDSP9652, not a Hammerfall, but it should be very close if
not exactly the same, and this is what I see in QJC's message window:

(you do NOT need to run 64/2 for testing...)

20:01:52.019 jackd -R -P80 -p512 -dalsa -dhw:1 -r44100 -p64 -n2
20:01:52.035 JACK was started with PID=4148 (0x1034).
jackd 0.102.14
Copyright 2001-2005 Paul Davis and others.
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 = 44100
creating alsa driver ... hw:1|hw:1|64|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:1
configuring for 44100Hz, period = 64 frames, buffer = 2 periods
ALSA: final selected sample format for capture: 32bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit little-endian
ALSA: use 2 periods for playback
20:01:54.084 Server configuration saved to "/home/mark/.jackdrc".

Hope this helps somehow,

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