On Sun, 2012-08-12 at 01:41 +0200, Jan Steffens wrote: > On Sun, Aug 12, 2012 at 1:23 AM, Fons Adriaensen <fons@xxxxxxxxxxxxxx> wrote: > > If that is true it is completely wrong from the start. Because > > that setup can't be maintained when a second app starts playing > > which can happen at any time. Suppose that first (single) app has > > its volume set to some low value, and PA uses the soundcard PCM > > gain control to achieve that as you claim it does. Now suddenly > > there's a second app which wants a higher level. The only way to > > achieve that is to raise the hardware gain - you can't compensate > > for a low setting there by sending a louder signal, it would just > > clip. So PA now has to adjust the hardware gain and at the same > > time start scaling down the output from the first app. > > It's impossible to do that in any acceptable way. > > Yet that's exactly what it does. And on my system (HDAudio) I have not > noticed any changes in the volume of the first stream, even as the > "Master" mixer control jumped levels. > > Maybe ask the devs for details. http://mailman.archlinux.org/pipermail/arch-general/2012-August/029596.html
