[LAU] Jack ports

Will J Godfrey WillGodfrey at musically.me.uk
Fri May 8 20:51:41 UTC 2015


On Fri, 8 May 2015 16:32:36 -0400
Paul Davis <paul at linuxaudiosystems.com> wrote:

> On Fri, May 8, 2015 at 4:26 PM, Will Godfrey <willgodfrey at musically.me.uk>
> wrote:
> 
> > On Fri, 8 May 2015 21:23:45 +0100
> > Will Godfrey <willgodfrey at musically.me.uk> wrote:
> >
> > > I seem to recall someone saying there is a limit to the number of ports
> > jack
> > > can handle. What is the limit?
> >
> 
> Depends on the implementation.
> 
> In all cases, the -p argument given to the server will specify the number
> of ports. In Jack1 it defaults to 256 but can be increased arbitrarily. In
> Jack2, I don't know the default, but I do know that the upper limit is
> fixed at build time. In most cases it will be 2048.
> 
> 
> > > What about MIDI, how many MIDI ports can jack handle?
> >
> 
> counted towards the total.
> 
> 
> > Is there a difference between the number of ports registered, and the
> > number
> > actually connected?
> >
> 
> depends on what you mean by "connected"

Thanks for the remarkably quick answers guys!

By connected, I mean that Yoshimi presents the main L & R audio ports + 16
pairs for individual parts, or 34 total. In practice, most people only link the
main pair to anywhere else, so although all the others appear in qjackctl they
are not actually doing anything. Like this, do they still count in the total?

-- 
It wasn't me! (Well actually, it probably was)

... the hard part is not dodging what life throws at you,
but trying to catch the good bits.


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