Volume difference between programs due to pulseaudio

Hello,
I recently had to install pulseaudio because Skype required it. So now I think every application is using pulseaudio... I used to use ALSA before.
Anyway, it seems that there is a volume difference between applications: I have to turn up my volume quite loud to hear music played by XMMS (with XMMS's slider already at max). But when then KDE makes an alert sound for a dialog, I almost jump out of my chair because of how loud it is!!
Even stranger is that withing XMMS, switching to a next song causes a volume difference as well that didn't use to be there.
With ALSA, all applications had more similar sound levels.
Is there some way to fix this with pulseaudio?
Thanks!
Last edited by aardwolf (2014-07-06 19:00:58)

I so feel ya aardwolf!
I "switched" from alsa to pulseaudio a while ago, don't really remember what made it necessary for me, but anyhow. I've been through the same as you're going through these days. Unfortunately I haven't found any solutions.
There doesn't seem to be a way for either turning off the per application sound levels (well I guess that's the feature that justifies the need for an otherwise useless sound server, so "of course" that can't be turned off), nor a way for implementing a reliably working master slider.
Why do I say reliably working master slider? You can for example go to the output tab in pavucontrol, lock the channels together and use that as a master control. Or maybe not because all sorts of funny shannanigans are happening if you're doing that, such as sometimes it's working, other times it doesn't and other times these sliders jump to a random position. For example Amarok liked doing that on my machine: changing from one track to a different one sometimes caused the sliders to a much different random position and wrecking your nerves.
So I would suggest to get pavucontrol to be able to adjust the sound levels for every application, then get e.g. pulseaudio-ctl to raise/lower/mute all active applications sound levels at once. That's the closest to having a real master slider. Every so often you'll probably have to readjust your per application levels because this way only your currently running applications are getting adjusted. So for example your skype and xmms levels sit both at 80 percent. Skype is not running, xmms is running. You turn xmms down to 50percent and crank your speakers up. When you then start skype it'll be at 80 percent. Since you mentioned kde: the kde system sounds will always be at 100percent and always blow your ears off. So yeah, welcome to the new linux world where shitty bloated and unnecessary software is deemed the new standard to mimic the poor behaviour of other operating systems.
Alright before I get carried away too much: Good luck experimenting with pulseaudio. Maybe you will find the solution I couldn't find, I'll cross my fingers for you. Or get used to being able to adjust multiple sound levels and do so recursively (in pavucontrol playback, in pavucontrol output and in application - per application of course...). Or maybe run skype through wine (dunno if that's possible) and get rid of that unnecessary sound server - though I'm pretty sure that would only prolong things: eventually in a couple months you'll be forced to use pulseaudio again by some other program you're using. In any way: Get your frustration resistance up.
Good luck.

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