[PD-dev] PD externals/extras/OSC and RT and JACK

David Merrill dmerrill at media.mit.edu
Tue Aug 28 05:10:13 CEST 2007


Hi Ken,

4) I can't seem to figure out how to save audio settings such that pd starts
> up JACK and ALSA MIDI upon startup. Every time I start it, I have to
> manually go into the Media menu, and select JACK, and tell it how many audio
> ports (it doesn't remember), and select the ALSA-MIDI dialog box and tell it
> how many MIDI ports (it *does* remember that), before it opens the ALSA
> port. I'd like both to happen automatically at startup. I'm using "pd -rt
> -jack  -alsamidi" but it seems to disregard those.


In Montreal I was having a problem like this, and with a little help from
Iohannes, found that the following arguments worked for me:

# start jack
jackd -d alsa -d hw:0 -r 44100 -p 512

# start pd
pd -jack -audiodev 0 -channels 2
(without the "-channels 2" flag, it would segfault, and without the
"-audiodev 0" flag it would ignore the -jack flag)

I just tried this, and it did what you're trying to do:
pd -jack -audiodev 0 -channels 2 -alsamidi

hope that helps,
-David M.
-- 
MIT Media Lab
dmerrill at media.mit.edu
http://web.media.mit.edu/~dmerrill/ <http://web.media.mit.edu/%7Edmerrill/>
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