1 master slider per audio interface seems reasonable to me. I can't think of any other exceptional case outside VoIP, i which i'd automate a behaviour like the headphone / speaker autonomy suggested.
On Sat, May 15, 2010 at 00:16, Sense Hofstede <qense@xxxxxxxxxx> wrote:
Standards are awesome. Use them.
+1
Most people only have one slider, and you expect to be able to quickly lower the volume in general using your scroll wheel.
Most people only have only one audio interface, too. Forcing "common" behaviour to a specifically modified use case often leads to strong difficulties. Whoever chooses to install an additional audio device, such as USB headsets for VoIP calls, should have an extra option to control these independently.