On Wed, 2020-11-04 at 14:56 +0100, 01ivier@xxxxxxxxxxxxx wrote: > Le 2020-11-04 01:17, Arun Raghavan a écrit : > > On Tue, 3 Nov 2020, at 7:09 PM, 01ivier@xxxxxxxxxxxxx wrote: > > > Le 2020-11-03 23:49, Arun Raghavan a écrit : > > > > On Tue, 3 Nov 2020, at 5:28 PM, 01ivier@xxxxxxxxxxxxx wrote: > > > > > Hello again, > > > > > > > > > > I want to know if there is a way, still in command line, to control > > > > > the > > > > > right and left volumes of an application. > > > > > With Pulseaudio Volume Control, you can click on the lock icon related > > > > > to a launched application, and two sliders appear to do so. > > > > > Is it possible in CLI ? > > > > > > > > > > My goal is to run two applications on the same card, but to assign > > > > > right > > > > > channel for one and left for the other. > > > > > > > > > > Possible complication : the output of my application is in mono and > > > > > with > > > > > Pulseaudio Volume Control I don't get the two sliders if I click on > > > > > the > > > > > lock icon. > > > > > > > > You can use pactl to do this: > > > > > > > > pactl set-sink-input <sink input index> <volume for channel 1> > > > > <volume for channel 2> ... > > > > > > > > You can look up the sink input index and channel map for channel order > > > > with: > > > > > > > > pactl list sink-inputs > > > > > > > > -- Arun > > > > > > Hello Arun and thanks for the quick answer. > > > > > > It's exactly the command I was looking for. > > > Unfortunately, as I thought, it doesn't work in my case because my > > > output is in mono. > > > Here's what I get: > > > Failed to set volume: You tried to set volumes for 2 channels, whereas > > > channel(s) supported = 1 > > > > > > I can't change the output of the software. > > > Is there possibly a way to create a virtual stereo output from the > > > mono > > > > Yup, check out module-remap-sink: > > https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#module-remap-sink > > > > -- Arun > > Thank you, > > Your answer is good... I just asked the wrong question... Sorry... > > What could help me, in my case, is to remap the mono sink-input (the > ouput of my application) into a stereo one, so that I could control the > volume of each channel with set-sink-input. > Maybe I missed something but module-remap-sink doesn't like to do it. > > I tried to use module-remap-source but "Name or index of the master > source" seems to concern sink listed with "pacmd list-sinks" not "pactl > list sink-inputs". > > Is there a solution to get a stereo sink-input from a mono one ? There's no way to change the channel map of a sink input. It sounds like you could load one remap-sink for the left channel and one remap- sink for the right channel, and point the application to the appropriate remap-sink. -- Tanu https://www.patreon.com/tanuk https://liberapay.com/tanuk _______________________________________________ pulseaudio-discuss mailing list pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
