21 May
2015
21 May
'15
4:38 a.m.
On 05/20/15 11:49, Miguel Martin wrote:
Hi there,
I'm asking about your API jack audio. I'm not sure if you are the lead
developers or not, but you're the only emails I could find that
contributed to this project. I just want to ask: is it possible to
control application level volume in OS X and Linux? If so, can you give
me any resources or point me in the right direction?
You are looking for jack-devel@. CCed now.
And the answer is no, JACK does not control application level volume, it
just forwards and merges audio streams.
If you want volume control, use a mixer (maybe one of not too many
jack-based mixers), so you can adjust each jack client's volume in one
place.
HTH
31 May
31 May
1:52 p.m.
New subject: [Jack-Devel] Jack Audio Question
On Thu, 21 May 2015, Adrian Knoth wrote:
On 05/20/15 11:49, Miguel Martin wrote:
Hi there,
I'm asking about your API jack audio. I'm not sure if you are the lead
developers or not, but you're the only emails I could find that
contributed to this project. I just want to ask: is it possible to
control application level volume in OS X and Linux? If so, can you give
me any resources or point me in the right direction?
You are looking for jack-devel@. CCed now.
And the answer is no, JACK does not control application level volume, it
just forwards and merges audio streams. If you want volume control, use a mixer (maybe one of
not too many
jack-based mixers), so you can adjust each jack client's volume in one
place.
My audio interface has no hardware mixer, so I asked for such a feature.
I'd appreciate a "master volume" in jackd, but no developer wants jackd
to deal with that.
I found a solution that works for me:
- I start a mixer, e.g. jack_mixer
- I start jack.plumbing with a ruleset that disconnects my jack clients
(even ALSA-clients that use jack via .asoundrc) and connects them to
jack_mixer's input. jack.plumbing stays active permanently in my
X-session.
My ruleset (.jack.plumbing) looks like:
(connect "alsa-jack\..*jackP\..*:out_000" "jack_mixer:ALSA L")
(connect "alsa-jack\..*jackP\..*:out_001" "jack_mixer:ALSA R")
(disconnect "alsa-jack\..*jackP\..*:out_000" "system:playback_1")
(disconnect "alsa-jack\..*jackP\..*:out_001" "system:playback_2")
(connect "Clementine:out_jackaudiosink-.*_1" "jack_mixer:JACK L")
(connect "Clementine:out_jackaudiosink-.*_2" "jack_mixer:JACK R")
(disconnect "Clementine:out_jackaudiosink-.*_1" "system:playback_1")
(disconnect "Clementine:out_jackaudiosink-.*_2" "system:playback_2")
(connect "Qtractor:Master/out_1" "jack_mixer:JACK L")
(connect "Qtractor:Master/out_2" "jack_mixer:JACK R")
(disconnect "Qtractor:Master/out_1" "system:playback_1")
(disconnect "Qtractor:Master/out_2" "system:playback_2")
(connect "rosegarden:master out L" "jack_mixer:JACK L")
(connect "rosegarden:master out R" "jack_mixer:JACK R")
(disconnect "rosegarden:master out L" "system:playback_1")
(disconnect "rosegarden:master out R" "system:playback_2")
(connect "MPlayer.*:out_0" "jack_mixer:ALSA L")
(connect "MPlayer.*:out_1" "jack_mixer:ALSA R")
(disconnect "MPlayer.*:out_0" "system:playback_1")
(disconnect "MPlayer.*:out_1" "system:playback_2")
(connect "jack_mixer:MAIN L" "system:playback_1")
(connect "jack_mixer:MAIN R" "system:playback_2")
2:50 p.m.
New subject: [Jack-Devel] Jack Audio Question
On Sun, 31 May 2015 20:52:33 +0200 (CEST), Holger Marzen wrote:
My audio interface has no hardware mixer, so I asked
for such a
feature. I'd appreciate a "master volume" in jackd, but no developer
wants jackd to deal with that.
Hi,
good news that you are able to solve the issue.
Btw. from my user's point of view I don't want that Jack provides a
mixer. Jack is an "advanced patchbay" and that IMO is all Jack
should be. For averaged desktop usage there are other sound servers
available. If Jack would provide features such as a mixer, there would
be two serious risks. 1. Since Jack is a kind of core component for
audio production, a feature as a mixer could become a problem,
because the more code, more bugs. 2. A user want's to feel
certain that connections done by the "patchbay" simply work without the
need to care about patchbay mixer controls. The chain of the used
equipment usually provides already too much level controls.
Regards,
Ralf
3882
days inactive
3892
days old
jackaudio@lists.linuxaudio.org
2 comments
3 participants
participants (3)
-
Adrian Knoth -
Holger Marzen -
Ralf Mardorf