18 Feb
2008
18 Feb
'08
8:40 a.m.
While Jackd is runnning, other applications like Amarok and system sound
alerts cannot use Alsa at the same time.
But JACK diagram given in it's web site shows that any non-jackified
application can use Alsa Userspace Library at the same time.
And, Sampo Savolainan told me that, other programs can use the ALSA library,
but jack needs exclusive
access to the audio hardware it uses. Nothing is stopping a non-jack program
to access other sound interfaces you might have in your system.
How is this exclusive access given to Jack ?
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
18 Feb
18 Feb
9:17 a.m.
Hi!
Try alsa's jack-plugin. You can try to write a pcm-device in your .asoundrc,
that is really jack-plugin based.
Be sure to have a version later than 1.0.14, to get it working properly.
That way your other apps use the alsa-lib interface, but alsa really just
hands the sound-data over to jack.
Hope that helps!
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
9:22 a.m.
I'll try that Julien.
Thanks.
On Feb 18, 2008 3:16 PM, Julien Claassen <julien(a)c-lab.de> wrote:
Hi!
Try alsa's jack-plugin. You can try to write a pcm-device in your
.asoundrc,
that is really jack-plugin based.
Be sure to have a version later than 1.0.14, to get it working properly.
That way your other apps use the alsa-lib interface, but alsa really just
hands the sound-data over to jack.
Hope that helps!
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
7:08 p.m.
Hi Julien.
I've read of this solution, and couldn't figure it out. I also tried
the jack asynchronous library, with the LD_PRELOAD environment
variable...
My goal is a little different: to record audio from a non-jack-enabled
application, and I've read that it can be done in both of these ways.
Any more details you can point me to would be most welcome.
-Chuckk
On Feb 18, 2008 3:16 PM, Julien Claassen <julien(a)c-lab.de> wrote:
Hi!
Try alsa's jack-plugin. You can try to write a pcm-device in your .asoundrc,
that is really jack-plugin based.
Be sure to have a version later than 1.0.14, to get it working properly.
That way your other apps use the alsa-lib interface, but alsa really just
hands the sound-data over to jack.
Hope that helps!
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
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http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
--
http://www.badmuthahubbard.com
11:49 a.m.
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Arda Eden schrieb:
While Jackd is runnning, other applications like
Amarok and system sound
alerts cannot use Alsa at the same time.
They can. You just need xinelib built with jacksupport. Xinelib builds
automagically with jacksupport, if you have the devel-packages of jack
installed.
Works perfectly for me ;-)
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12:04 p.m.
On Monday 18 February 2008 17:49:00 Hartmut Noack wrote:
Arda Eden schrieb:
So how do I build this with Debian Sid?
Uninstall the official packages and get sources?
While Jackd is runnning, other applications like
Amarok and system sound
alerts cannot use Alsa at the same time.
They can. You just need xinelib built with jacksupport. Xinelib builds
automagically with jacksupport, if you have the devel-packages of jack
installed.
Works perfectly for me ;-)
19 Feb
19 Feb
6:37 p.m.
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David Baron schrieb:
On Monday 18 February 2008 17:49:00 Hartmut Noack
wrote:
First get the sources, install the dependencies with apt/synaptic and
build xinelib, then check, if it works - make backups of al xine-related
stuff in /usr/lib and copy the xinelib-stuff from /usr/local/lib to /usr/lib
I had some trouble to do the same trick (xineui failed to start...) on
64Studio -- on UbuntuStudio 32bit it worked flawless.
Arda Eden schrieb:
So how do I build this with Debian Sid?
Uninstall the official packages and get sources? While Jackd is runnning, other applications like
Amarok and system sound
alerts cannot use Alsa at the same time.
They can. You just need xinelib built
with jacksupport. Xinelib builds
automagically with jacksupport, if you have the devel-packages of jack
installed.
Works perfectly for me ;-) _______________________________________________
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Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
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6 comments
5 participants
participants (5)
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Arda Eden -
Chuckk Hubbard -
David Baron -
Hartmut Noack -
Julien Claassen