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

[Ken Restivo]

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On Mon, Aug 27, 2007 at 11:10:13PM -0400, David Merrill wrote:
> 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
> 

I just realized that it *almost* works. 

The JACK devices are definitely created at the time that PD starts up.

But no sound comes out until I choose the "Test Audio and MIDI" window, and click on -20 or -40, and get a tone, and then click OFF. 

Only *then* will audio come out of any other patches that might be loaded, even if I can see from number boxes that the patches are definitely running.

- -ken
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