Re: [LAD] Pipewire help?
On Sat, 22 Jan 2022 13:57:45 -0800 (PST) Len Ovens wrote:
> 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#behringer-umc404hd-speakersheadphones-virtual-sinks
>
> 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.
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.
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Re: [LAD] Pipewire help?
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#behringer-umc404hd-speakersheadphones-virtual-sinks 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 ___ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-dev
[LAD] Pipewire help?
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. ___ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-dev
