28 Dec
2009
28 Dec
'09
5:06 p.m.
Am Mon, 28. Dec 2009 um 15:24:02 -0500 schrieb lanas:
Le Lundi, 28 Décembre 2009 20:17:21 +0100,
Guido Scholz <guido.scholz(a)bayernline.de> a écrit :
Hi "lanas",
could you please reply to the list an not to my private e-mail?
> as far as I understood your experiment, you
compared these two setups
> to conclude "QARecord is to blame":
Not really. And I forgot to mention jackmix which
looks like another
quick hack.
Hm, yes that sounds pretty persuading.
This is because it was not much of an experiment to
start with but
rather an observation derived from finding a way to record the song
without so many xruns.
I am aware of that and chose this wording to encourage you to discover
the real root cause. Currently we suffer from hypotheses (at least I
do).
As such, the observation was quite clear: kernel
real-time
capabilities, although they might play a role somewhere, had nothing
to do in producing xruns since switching applications resolved the
problem. From that observation then a question arose: there must be a
bad way and a good way of writing a Linux audio/jack application: what
is it ?
So did you get the answer?
> For mathematical reasons I would like to get your
result from this
> alternative setup (also giving better access to a root cause):
>
> 3) noise -> jackmix -> Ardour -> wav-file
Indeed. That's the possibility I haven't
explored since I think the
result of the observation was to see that there's a bad and good way of
writing such applications.
I see, so you are more interested from a philosophical (or moral?) point
of view.
Now, that the bad way lies with jackmix
and/or Qarecord is a second point that has more to do with technical
performance in the context of writing such an audio/jack application.
Which is not the case at the moment.
Hm sorry, I didn't get that.
> Some other interesting information would be, what
program versions
> (jackmix, QARecord) are you using?
Hmmm.. I'd disagree with this insofar as debugging
these apps is
certainly not the matter.
So yes well, but are you sure, you understood my question?
Guido
--
http://www.bayernline.de/~gscholz/
http://www.lug-burghausen.org/