maybe its because you dont have permission to run jack as realtime as a user
is the realtime option enabled in the settings or not?
if it is try with out it and see if jack will start (also check the
other settings)
if thats the problem then:
edit the /etc/security/limits.conf
sudo nano /etc/security/limits.conf
and add something like this on at the end of the file
@audio - rtprio 99
@audio - nice -10
@audio - memlock 512000
rob
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
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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