Another related bit - The soundcard itself (UCA200) appears to have a sampling rate of 32/44.1/48kHz and 24-bit resolution - Does this mean qjackctl needs to be configured differently?
On 11/18/07, firstname.lastname@example.org <email@example.com> wrote:
Also of relevance: I'm using the Behringer UCA200 USB audio interface as a sound card.
Wowzer.. So, quite the output from that command you gave me - Very.. err.. verbose
You can find it here:
And here's the output qjackctl's Messages gives me when I try to run as realtime:
Thanks a ton, Chris!
On a related topic, can anyone point me toward a good guide to understanding and configuring qjackctl? I'd like to know what sort of latency is realistic, and how to achieve it.
On 11/12/07, Chris Dawson <
strace is "system call trace."**It simply runs a program within a
harness that outputs all the system calls made.**In this case, it will
output and tell you where the jackd program is dying.**In my case I
saw that it was dying when it tried to open and write to the
It is absolutely harmless to run strace, it just outputs a lot of
extra information you probably won't understand, but would be useful.
If you'd like run it and send me the output.**You can do this:
strace -ooutput.txt /usr/bin/jackd -R -u -dalsa -dhw:0 -r44100 -p1024 -n2 &
Then, it'll either die on its own, or you'll need to run:
killall -9 strace jackd
...to kill it.**Then, send me the output.txt file and I can look for
something suspicious.**Or, you can check it out youself and perhaps
you can figure it out.
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