Session management tools (was: Re: DC offset)

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On Thu, Feb 02, 2012 at 07:11:22AM -0700, Daniel Worth wrote:
> On Wed, Feb 1, 2012 at 2:54 AM, Joel Roth <joelz@xxxxxxxxx> wrote:
> 
> > On Tue, Jan 31, 2012 at 09:09:46PM -1000, david wrote:
> > > On 01/30/2012 11:49 PM, thijs van severen wrote:
> > >
> > > >2012/1/31 david>
> > > >
> > > >    On 01/30/2012 07:38 AM, Fons Adriaensen wrote:
> > > >
> > > >        BTW, regarding Audacity, the way it behaves w.r.t. Jack is
> > > >        completely
> > > >        wrong - those ports should exist as soon a the track is created.
> > > >        Complain
> > > >        to the Audacity developers !
> > > >
> > > >    And the ports disappear when you hit Audacity's stop button.
> > > >
> > > >isn't this also the way that VLC has implemented jack ports ?
> > > >really annoying :-(
> > >
> > > I don't know - don't use VLC.
> > >
> > > Could session management tools be set up to react to the appearance
> > > of Audacity's ports (I think they're always named the same) and
> > > reconnect them?
> >
> > There are related issues with Ecasound.
> >
> > Configuring the audio engine and connecting the engine with
> > external resources are separate steps.  JACK ports are
> > created in the second step. Once created, these ports
> > are maintained regardless of transport state.
> >
> > For Nama, which uses Ecasound, I'm also hoping that session
> > management will help. Nama retains state information, such
> > as project name, that Ecasound does not.
> >
> > Is there any movement to make JACK session tools available
> > to programs written in scripting languages? MMA, written
> > in Python for example, could also benefit...
> >
> > -joel

> This is easily solved with qjacktl's patchbay. It's clients like this that
> it was designed for.
 
> http://www.rncbc.org/drupal/node/76

That's a helpful resource, thanks.
 
Does qjackctl start applications as well?

I don't see how Nama could to know to load
a particular project, say "three_blind_mice".
Perhaps qjackctl could execute a shell command like:

screen -X -S audio screen -t Nama - three blind mice -p- -- nama three_blind_mice

or

rxvt -e nama three_blind_mice

I'm especially interested non-GUI tools, since Nama caters
to users who don't run X.  Unfortunately the git repository
for pyjacksm appears to be offline. :-(

Regards,

-- 
Joel Roth
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