potax flan wrote:
when i hit "start" i get an error message saying "Could not start JACK"
do i need to install other libs?
thanks for your patience
p
Check the qjackctl messages window for more informative output (it opens
when you click the button on the left in the middle row):
For example, if you get something like this:
21:12:44.087 Startup script...
21:12:44.088 artsshell -q terminate
21:12:44.530 Startup script terminated with exit status=256.
21:12:44.531 JACK is starting...
21:12:44.532 /usr/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n2
21:12:44.537 Could not start JACK. Sorry.
21:12:45.791 JACK was stopped with exit status=255.
21:12:45.793 Post-shutdown script...
21:12:45.794 killall jackd
jackd: no process killed
21:12:46.212 Post-shutdown script terminated with exit status=256.
maybe you need to:
sudo aptitude install jackd
But: if you get xrun messages, they usually come from jack, so probably
you have some other issue. Paste the contents of the qjackctl message
window so we can see what is going on in more detail :)
On Mon, Aug 4, 2008 at 2:19 AM, krgn <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
no problem... on linux, SuperCollider uses jack audio server as
"audio interface". best is to start it using the graphical tool
"qjackctl". you can choose that from the menu under jack tools (or
something..). one important thing you need to do is to check the
"Realtime" button in the Setup menu for qjackctl, so that the jackd
process runs with realtime priority. after having started jackd,
you can start scsynth in your preferred way from emacs. also, take a
look at the "Frames/Period", Samplerate and "number of periodss"
parameters, they affect the system performance vs. in/out latency.
On Sun, Aug 3, 2008 at 5:06 PM, potax flan <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
thanks karsten
now i managed to run a simple SynthDef, but it's really choppy.
i get a constant error/warning message in emacs:
**** alsa_pcm: xrun of at least 1217807509356.544 msecs
guess i need to configure alsa? do i add lines to the .emacs file?
thanks
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