[LAU] Scripting jackd connections

Joel Roth joelz at pobox.com
Wed Jun 15 03:01:44 UTC 2016

Hi worik,

worik wrote:
> Friends
> Apologies if this has been asked and answered already but I can find no
> solutns.
> My jackd set up is quite idiosyncratic.  When I plug in my external
> sound gear I have to change the connections each time to get sound out. 
> I also use a variety of gear from the same computer each with its own
> requirements.
> I would like to be able to write a script that would start up jackd, set
> the default sound IO to use jackd (I am on Ubuntu Studio) start a couple
> of other applications and change the connections.
> The man page for jackd is not much help.  I have found some pages that
> have part of the answer (e.., http://www.64studio.com/node/740) but
> surely there is some direct way of manipulating jackd connections
> without a mouse and GUI?

Jack usually comes with command-line utilities jack_connect
and jack_disconnect, which you can easily script.  To see
what ports are available, you can parse the output of
jack_lsp, which is the quick-and-dirty approach Nama uses.

There is jack-plumbing, a simple utility/daemon which will
make connections based on a config file, jack.plumbing.

There is also a python module that looks like it might
be helpful, although I wonder if it can connect
arbitrary ports.




> Worik
> -- 
> Why is the legal status of chardonnay different to that of cannabis? 
>                   root at worik.org 021-1680650, (03) 4821804
>                           Aotearoa (New Zealand)
>                              I voted for love
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Joel Roth

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