22 Jan
2022
22 Jan
'22
10:38 p.m.
My QJackCtl Patchbay doesn't work any more and it's obvious there are
new ways to get similar functionality with WirePlumber, but a little
example would help. I seem to want to pipe the output of pw-link -l
somewhere (pw-link -l | wireplumber --make_it_so).
Need to always connect jack-play this way:
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- jack-play:out_1
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
|<- jack-play:out_2
jack-play:out_1
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
jack-play:out_2
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
Thanks.
--
It gets harder to learn new things as we gets old.
22 Jan
22 Jan
11:58 p.m.
On Sat, 22 Jan 2022, John Murphy wrote:
My QJackCtl Patchbay doesn't work any more and
it's obvious there are
new ways to get similar functionality with WirePlumber, but a little
example would help. I seem to want to pipe the output of pw-link -l
somewhere (pw-link -l | wireplumber --make_it_so).
Need to always connect jack-play this way:
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- jack-play:out_1
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
|<- jack-play:out_2
jack-play:out_1
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
jack-play:out_2
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
I think you can (via PW setup) change the name of your USB to
system:playback_1 (and 2) and then Qjackctl's patchbay might just work.
https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Virtual-Devices#be…
Change node.name to system and audio.position = [ FL FR ] to [ 1 2 ] etc.
I am not sure why PW, in it's JACK compatibility does not allow one of the
devices to be chosen as master and called system:* for compatibility with
all the JACK software out there... but it is what it is. I am sure someone
will come up with a configuring app(let) that does this better for
profesional audio use. To be honest, I am not really sure what optimal
would be.
--
Len Ovens
www.ovenwerks.net
23 Jan
23 Jan
2:40 a.m.
On Sat, 22 Jan 2022 13:57:45 -0800 (PST) Len Ovens wrote:
On Sat, 22 Jan 2022, John Murphy wrote:
Thanks Len, it works fine now. I copied /etc/pipewire/client-rt.conf) to
/etc/pipewire/virtual-sink.conf and added, in the modules section:
{ name = libpipewire-module-loopback
args = {
node.name = "system"
node.description = "the system"
capture.props = {
media.class = "Audio/Sink"
audio.position = [ FL FR ]
}
playback.props = {
audio.position = [ AUX0 AUX1 ]
node.target = "alsa_output.usb-EDIROL_M-16DX-00.pro-output-0"
stream.dont-remix = true
node.passive = true
}
}
}
I don't see a connection line in QJackCtl's Connections, but it's there.
Maybe I'll try some variations on the audio.position settings.
It's well documented, although over-my-head, but I needed to get that
working quickly so my Qt program, which uses jack-play via QProcess, works.
--
John.
My QJackCtl Patchbay doesn't work any more
and it's obvious there are
new ways to get similar functionality with WirePlumber, but a little
example would help. I seem to want to pipe the output of pw-link -l
somewhere (pw-link -l | wireplumber --make_it_so).
Need to always connect jack-play this way:
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- jack-play:out_1
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
|<- jack-play:out_2
jack-play:out_1
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
jack-play:out_2
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
I think you can (via PW setup) change the name of your USB to
system:playback_1 (and 2) and then Qjackctl's patchbay might just work.
https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Virtual-Devices#be…
Change node.name to system and audio.position = [ FL FR ] to [ 1 2 ] etc.
I am not sure why PW, in it's JACK compatibility does not allow one of the
devices to be chosen as master and called system:* for compatibility with
all the JACK software out there... but it is what it is. I am sure someone
will come up with a configuring app(let) that does this better for
profesional audio use. To be honest, I am not really sure what optimal
would be. 
3:43 p.m.
Am So., 23. Jan. 2022 um 01:42 Uhr schrieb John Murphy <
rosegardener(a)freeode.co.uk>gt;:
I don't see a connection line in QJackCtl's
Connections, but it's there.
Maybe I'll try some variations on the audio.position settings.
Please, try to delete ~/.config/rncbc.org/QjackCtl.conf . That solved the
"connections invisible for QJackCtl" issue for me after months, see
https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1282#note_1074623
. (I actually deleted the whole ~/.config/rncbc.org/ directory but I don't
think there was anything else in it than the QJackCtl.conf file)
Kind regards,
Felix
7:24 p.m.
On 1/23/22 13:42, Felix Homann wrote:
Am So., 23. Jan. 2022 um 01:42 Uhr schrieb John Murphy
<rosegardener(a)freeode.co.uk <mailto:rosegardener@freeode.co.uk>>:
I don't see a connection line in QJackCtl's Connections, but it's there.
Maybe I'll try some variations on the audio.position settings.
Please, try to delete ~/.config/rncbc.org/QjackCtl.conf
<http://rncbc.org/QjackCtl.conf> . That solved the "connections
invisible for QJackCtl" issue for me after months, see
https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1282#note_1074623
<https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1282#note_1074623>
. (I actually deleted the whole ~/.config/rncbc.org/ <http://rncbc.org/>
directory but I don't think there was anything else in it than the
QJackCtl.conf file)
some users out there may have something else important under
~/.config/rncbc.org/..., which is the place all qstuff stores their
configuration and user preferences files; even the new qpwgraph [1]
stores its things there ;)
so please, try to remove ~/.config/rncbc.org/QjackCtl.conf and only!
cheers
--
rncbc aka. Rui Nuno Capela
rncbc(a)rncbc.org
[1] https://gitlab.freedesktop.org/rncbc/qpwgraph
24 Jan
24 Jan
1:53 p.m.
On Sun, 23 Jan 2022 17:24:33 +0000 Rui Nuno Capela wrote:
On 1/23/22 13:42, Felix Homann wrote:
That's what I did, but I remembered I'm using the old distro version of
QjackCtl and should install the latest. Qt Everywhere, except...
I have Qt 6.2.2 at /home/john/Qt/6.2.2/gcc_64/ and added there to the
path for the build and install, which went smoothly, but running, it
complains:
qjackctl: error while loading shared libraries: libQt6Widgets.so.6:
cannot open shared object file: No such file or directory
and yet:
$ locate libQt6Widgets.so.6
/home/john/Qt/6.2.2/gcc_64/lib/libQt6Widgets.so.6
/home/john/Qt/6.2.2/gcc_64/lib/libQt6Widgets.so.6.2.2
/home/john/Qt/Tools/QtCreator/lib/Qt/lib/libQt6Widgets.so.6
/home/john/Qt/Tools/QtCreator/lib/Qt/lib/libQt6Widgets.so.6.2.2
/home/john/Qt/Tools/QtDesignStudio/lib/Qt/lib/libQt6Widgets.so.6
/home/john/Qt/Tools/QtDesignStudio/lib/Qt/lib/libQt6Widgets.so.6.2.2
/home/john/Qt/Tools/QtDesignStudio/qt6_design_studio_reduced_version/lib/libQt6Widgets.so.6
/home/john/Qt/Tools/QtDesignStudio/qt6_design_studio_reduced_version/lib/libQt6Widgets.so.6.2.2
/usr/local/Qt6/lib/libQt6Widgets.so.6
/usr/local/Qt6/lib/libQt6Widgets.so.6.2.0
I tried 'sudo /sbin/ldconfig -v' but no change.
Thanks, for your programming, and in advance for help with this.
--
John. [ My post to the list yesterday was blocked because "The sending
IP is listed on https://spamrl.com as a source of spam." ]
Am So., 23. Jan. 2022 um 01:42 Uhr schrieb John
Murphy
<rosegardener(a)freeode.co.uk <mailto:rosegardener@freeode.co.uk>>:
I don't see a connection line in QJackCtl's Connections, but it's there.
Maybe I'll try some variations on the audio.position settings.
Please, try to delete ~/.config/rncbc.org/QjackCtl.conf
<http://rncbc.org/QjackCtl.conf> . That solved the "connections
invisible for QJackCtl" issue for me after months, see
https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1282#note_1074623
<https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1282#note_1074623>
. (I actually deleted the whole ~/.config/rncbc.org/ <http://rncbc.org/>
directory but I don't think there was anything else in it than the
QJackCtl.conf file)
some users out there may have something else important under
~/.config/rncbc.org/..., which is the place all qstuff stores their
configuration and user preferences files; even the new qpwgraph [1]
stores its things there ;)
so please, try to remove ~/.config/rncbc.org/QjackCtl.conf and only!
25 Jan
25 Jan
8:50 a.m.
qjackctl: error while loading shared libraries:
libQt6Widgets.so.6:
cannot open shared object file: No such file or directory
and yet:
$ locate libQt6Widgets.so.6
/home/john/Qt/6.2.2/gcc_64/lib/libQt6Widgets.so.6
/home/john/Qt/6.2.2/gcc_64/lib/libQt6Widgets.so.6.2.2
[...]
All's well now. Made a file called my-qt-qjackctl.conf with contents:
# added Tue 25 Jan 2022 for qjackctl 0.9.6 on Qt 6.2.2
/home/john/Qt/6.2.2/gcc_64/lib/
Put it in /etc/ld.so.conf.d and ran sudo /sbin/ldconfig
It works! (And no problem with lines in the Connect frame.)
--
John.
30 Jan
30 Jan
2:34 p.m.
On Sat, 22 Jan 2022 13:57:45 -0800 (PST) Len Ovens wrote:
I am not sure why PW, in it's JACK compatibility
does not allow one of the
devices to be chosen as master and called system:* for compatibility with
all the JACK software out there... but it is what it is. I am sure someone
will come up with a configuring app(let) that does this better for
profesional audio use. To be honest, I am not really sure what optimal
would be.
And yet, it seems that 'system:*' does exist in some form and plays a
role.
I've been trying to do without QjackCtl Patchbay and I've deleted the
virtual-sink.conf I made, so Pipewire is back to defaults. I prefer to
not hear audio while testing, so I use a meterbridge.
$ pw-link -i
Midi-Bridge:Midi Through:(playback_0) Midi Through Port-0
Midi-Bridge:M-16DX:(playback_0) M-16DX MIDI 1
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
but:
$ meterbridge -t vu -n myvu alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
Registering as myvu
Can't find port 'alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0'
whereas:
$ meterbridge -t vu -n myvu system:playback_1
Registering as myvu
(and it creates a link)
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- myvu:monitor_1
myvu:monitor_1
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
I can then play a file with:
$ jack-play -u a48k.wav
jack-play: a48k.wav
make the link and watch (and hear) it play:
$ pw-link -P jack-play:out_1 myvu:meter_1
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- myvu:monitor_1
myvu:monitor_1
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
myvu:meter_1
|<- jack-play:out_1
jack-play:out_1
|-> myvu:meter_1
Great! But then, I can't get it to work without the meterbridge
and I wonder if I need a 'bridge' as well as a Pipewire link.
This is what happens without the meterbridge:
$ jack-play -u a48k.wav
jack-play: a48k.wav
$ pw-link -P jack-play:out_1 alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- jack-play:out_1
jack-play:out_1
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
I think that's the same without going via the meterbridge, but no sound.
If I take meterbridge's insistence on linking to 'system:playback_1' as a
hint:
$ pw-link -P jack-play:out_1 system:playback_1
failed to link ports: No such file or directory
So; I can carry on using QjackCtl and its Patchbay, or work via a meterbridge,
or?
--
John. Needing help again.
31 Jan
31 Jan
2:50 p.m.
So; I can carry on using QjackCtl and its Patchbay, or
work via a meterbridge,
or?
I have been working on a Pipewire-based revision to my BNR
(https://lsn.ponderworthy.com) for some time; I have to have a patchbay
of some sort because that thing has a whole lot of connections :-)
Helvum:
https://gitlab.freedesktop.org/pipewire/helvum
gives the visual very nicely, and then I wrote pw-loadwires,
pw-savewires, and pw-dewire, to be found here:
https://github.com/ponderworthy/the-box-of-no-return-3
pw-loadwires and pw-savewires will save wire-sets in CSV files.
pw-dewire is a convenient way to remove all wires at once. Thus far,
very reliable, fast, and convenient.
J.E.B.
4:55 p.m.
On Mon, 31 Jan 2022 06:49:51 -0600 Jonathan E. Brickman wrote:
Such beautiful curves! Thank you. I wondered what all the speech-
dispatchers were, until I remembered FireFox is running. Had to add
'--user' to the 'flatpak-builder --install' command:
flatpak-builder --install --user flatpak-build/ build-aux/org.pipewire.Helvum.json
Or:
error: Flatpak system operation ConfigureRemote not allowed for user
Install failed: Child process exited with code 1
So; I can
carry on using QjackCtl and its Patchbay, or work via a meterbridge,
or?
I have been working on a Pipewire-based revision to my BNR
(https://lsn.ponderworthy.com) for some time; I have to have a patchbay
of some sort because that thing has a whole lot of connections :-)
Helvum:
https://gitlab.freedesktop.org/pipewire/helvum gives the visual very nicely, and then I wrote
pw-loadwires,
pw-savewires, and pw-dewire, to be found here:
https://github.com/ponderworthy/the-box-of-no-return-3
pw-loadwires and pw-savewires will save wire-sets in CSV files.
pw-dewire is a convenient way to remove all wires at once. Thus far,
very reliable, fast, and convenient.
All sounds like exactly what I need and your BNR sounds like a lot of fun.
Thanks again,
--
John.
1 Feb
1 Feb
6:35 a.m.
gives the
visual very nicely, and then I wrote pw-loadwires,
pw-savewires, and pw-dewire, to be found here:
https://github.com/ponderworthy/the-box-of-no-return-3
pw-loadwires and pw-savewires will save wire-sets in CSV files.
pw-dewire is a convenient way to remove all wires at once. Thus far,
very reliable, fast, and convenient.
All sounds like exactly what I need and your
BNR sounds like a lot of fun.
Thanks again,
7:06 a.m.
On Sun, 30 Jan 2022 12:34:41 +0000 John Murphy wrote:
So; I can carry on using QjackCtl and its Patchbay, or
work via a meterbridge,
Even Sox plays (and gets its wires made):
$ play -n synth sine 440
The linkage looks like:
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- ALSA plug-in [sox]:output_FL
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
|<- ALSA plug-in [sox]:output_FR
ALSA plug-in [sox]:output_FL
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
ALSA plug-in [sox]:output_FR
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
Which is hardly different to the links I make manually for jack-play:
$ jack-play -u a48k.wav
$ pw-link -l
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
|<- jack-play:out_1
alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
|<- jack-play:out_2
jack-play:out_1
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX0
jack-play:out_2
|-> alsa_output.usb-EDIROL_M-16DX-00.pro-output-0:playback_AUX1
But I do see that the connecting links show up dotted in Helvium.
pw-play works, of course, but has no jack_transport awareness option.
Could someone with Pipewire just test that jack-play doesn't play for them
either (without going via a meterbridge) before I post it as a bug?
--
John.
9:38 a.m.
Hmm. I went to check something online and there was an embedded youtube
video to see. I clicked on it and thought 'I know that tune!' :-) I had
forgotten that I'd left jack-play (not) playing and linked to the playback.
Paused the video and the music stopped. Un-pause and off it went again.
All wires shown dotted in Helvium, while paused.
Tried starting jack-play again with -t (jack transport aware). It said:
jack-play: a48k.wav
jack-play: seek request failed, 385225728 (That's beyond Eof)
jack_transport controls work while the video is playing, but do nothing
while the video is paused.
--
John.
2:35 p.m.
I had heard that the Pipewire people are working hard on video
integration, it appears that you found it! :-)
J.E.B.
On 2/1/22 1:37 AM, John Murphy wrote:
Hmm. I went to check something online and there was an
embedded youtube
video to see. I clicked on it and thought 'I know that tune!' :-) I had
forgotten that I'd left jack-play (not) playing and linked to the playback.
Paused the video and the music stopped. Un-pause and off it went again.
All wires shown dotted in Helvium, while paused.
Tried starting jack-play again with -t (jack transport aware). It said:
jack-play: a48k.wav
jack-play: seek request failed, 385225728 (That's beyond Eof)
jack_transport controls work while the video is playing, but do nothing
while the video is paused.
3 Feb
3 Feb
5:36 p.m.
Solved. It was me! I was making links with pw-link -P ... but should have
used -L which I'm sure I tried, but must have failed for some other reason.
Quoting Wim Taymans (who's time I'm sad to have wasted):
"-L makes a lingering link, that is one that stays alive after pw-link
quits and is likely what you want. -P makes a link that is not activated
(for keeping things suspended) you probably don't want that."
--
John.
824
days inactive
836
days old
linux-audio-dev@lists.linuxaudio.org
14 comments
5 participants
participants (5)
-
Felix Homann -
John Murphy -
Jonathan E. Brickman -
Len Ovens -
Rui Nuno Capela