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Is it possible to make audio from both channels come out of the "front left" on pulse audio?

I hope it’s fine to ask this here, I’m using endeavor os with KDE and got some little speakers for my pc, they however only seem to play sound from the “front left” channel, is there a way to make pulse audio send all audio on it? Like, mono mode? I couldn’t find anything that does that…

Edit: Found a solution! Like i said before in a comment on this post turned out i was running pipewire-pulse, so i could use pipewire solutions! tried easyeffects and it perfectly fitted my needs, thanks for all the responses everyone!

Quills OP ,
@Quills@sh.itjust.works avatar

Just found out my system is actually running pipewire, so that’s why everything i tried didn’t work right! But when i checked i remember seeing pulse-audio
Or maybe i just read it wrong… well that makes things easier, will look into y’all suggestions about pipe, thanks!

QuazarOmega ,

It’s probably the pulseaudio provided by the pipewire backend, it is there for compatibility with apps that still rely on it: wiki.archlinux.org/title/PipeWire#PulseAudio_clie…

Quills OP ,
@Quills@sh.itjust.works avatar

Ooh yup, that’s exactly the same package that’s installed here “pipewire-pulse”, makes sense

QuazarOmega ,

You can also use Helvum, it’s a patchbay native to Pipewire

Quills OP ,
@Quills@sh.itjust.works avatar

after some messing around to see how the app works i got it, it’s working thank you so much!!

QuazarOmega ,

Great! I agree it’s a little rough for now, and it seems development is kinda slow, but it works for what it tries to achieve already

Quills OP ,
@Quills@sh.itjust.works avatar

yeah
And i just noticed that, it doesn’t work like i thought, tried correcting it with the help of a sink it almost worked but as they disappear after a reboot it reverts everything i did, saaaad it was so close of working

QuazarOmega ,

Ah that’s annoying, so as I understand it should just be down to having persistent sink and routing right? Not sure if this what you want as I haven’t tried, but could this thread be helpful?

Quills OP ,
@Quills@sh.itjust.works avatar

Yeah i want the sinks and helvum configurations to persist between reboots, this thread does look interesting, will try that later when i get on my pc

fhein ,

Give qpwgraph a try, does the same thing

QuazarOmega ,

Oh thanks, didn’t know there was a Qt counterpart, it looks pretty good!

StefanT ,

If you use pipewire instead of pulse audio then you can install pipewire-jack and then use any of the jack patchbay applications to rewire the channels. Currently I use qpwgraph but there are several options.

angrymouse ,

qjackctl

I use qpwgraph that have the same Idea for pipewire. You can change all your inputs and outputs, I initially used to send the sound of programs to my discord input in order to stream with sound, but I also use to invert L and R when I’m watching on my couch and the wire does not fit to put the right speaker on the right so I just switch.
It is very easy.
Here some video, but I don’t think you will need.
www.youtube.com/watch?v=TDBGsbwMo40

PipedLinkBot ,

Here is an alternative Piped link(s): piped.video/watch?v=TDBGsbwMo40

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I’m open-source, check me out at GitHub.

nicman24 ,

either install an old version of pulseeffects or update to pipewire and set a mono filter

ogeist ,

First, change to pipewire, old man, pipewire is the new kid in the block and works great with Bluetooth headphones.

Then use streambay to do whatever you want with your audio.

Check this video: youtu.be/Zv1P6-kUn0c

PipedLinkBot ,

Here is an alternative Piped link(s): piped.video/Zv1P6-kUn0c

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I’m open-source, check me out at GitHub.

mvirts ,

How much latency can you endure? There are several patch bays for Jack that will let you do this, maybe requiring a mixing plugin or something. Gstreamer also has your back stackoverflow.com/a/16480476/9331018

Vlc or ffmpeg can probably do something similar

Quills OP ,
@Quills@sh.itjust.works avatar

I play osu! So latency is something I’d want as small as possible

Oh, i didn’t thought about that, won’t any solution have some sort of latency? Oh well, let’s see, i always play it with headphones so I’d Like to go with with a disablable method or something of that sort tho

mister_monster ,

Good god I remember doing this like 10 years ago. I don’t remember what I did, only that it was a nightmare. I only hope the situation has improved.

blog.desdelinux.net/…/pulseaudio-como-cambiar-a-m… this looks like something similar to the solution I came to in the end. Here’s some more information askubuntu.com/…/can-i-downmix-stereo-audio-to-mon… and this askubuntu.com/questions/71863/…/72076#72076

Good luck.

Quills OP ,
@Quills@sh.itjust.works avatar

thanks!

maiskanzler ,

Hmm, the easy way would be to simply set the balance to 100% left, but that’s just the left channel and not both. Maybe combined with some of the other’s suggestions it could work.

vettnerk ,

Unfortunately I do not remember how, but I did this a few years back. However, I used jackd instead of pulseaudio on that machine, so that might be one of the requirements.

Quills OP ,
@Quills@sh.itjust.works avatar

Ooh, will keep that in mind thank you!

bruce965 ,

I haven’t checked, but I assume PulseEffects must have a module to convert stereo to mono.

Quills OP ,
@Quills@sh.itjust.works avatar

Pulse effects, is that some sort of addon to pulse audio? Will look into it, thanks!

bruce965 ,

It’s an application that runs in the background and applies all sorts of filters and effects to your sound before it goes to the speakers. It’s actually quite cool, it can upgrade a crappy set of speakers/headphones to a mediocre one by applying the right adjustments.

github.com/wwmm/easyeffects

Quills OP , (edited )
@Quills@sh.itjust.works avatar

Oh i see, tried to install it here but it didn’t work, the app doesn’t start, Lots of people are recommending switching to pipewire, i think i may try that

bruce965 ,

I see. I’ve never used it but it sounds like a good suggestion :)

Quills OP ,
@Quills@sh.itjust.works avatar

hey! So, i ended up trying to download this again and it worked perfectly, it was exactly what i needed, i think it didn’t work before cuz i had downloaded the wrong app, didn’t saw that the name was “easyeffects” and downloaded this “pulseeffects-legacy” one, which didn’t work probably cuz turned out i was using pipewire-pulse all along, so yeah, your suggestion was the one i needed soo, thank you!

bruce965 ,

I’m glad it’s working! Yeah, right after posting that message I also noticed they forked it with a new name.

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