On Sun, Aug 12, 2012 at 1:23 AM, Fons Adriaensen <f...@linuxaudio.org> 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.
