On Wed, Mar 27, 2019, 9:18 AM Kjetil Matheussen <k.s.matheussen@gmail.com> wrote:
On Wed, Mar 27, 2019 at 2:10 PM Sunset Tech <swansong.tech@gmail.com> wrote:
The point isn't that its' not that much trouble to do. The point is
that it would be better if there was no trouble at all doing it. It
would be better if there was a program running all the time, which
didn't require work to start or set up, which was automatically
started for instance by qjackctl, that you could switch to to adjust
volume levels. Now
I'm fairly certain this is possible to rig up with some combination of jack api scripting/session management and qjackctl settings
In my opinion, I feel I would rather not have a singular place to manage the input volumes of every port. Looking at pavucontrol already feels cluttered with a small number of devices, looking at patchmatrix with its mixers also feels cluttered, I dont like seeing every volume control at once, and would prefer them to stay attached to their respective GUIs.
 and I would want to at minimum adjust stereo/surround collections of ports with single controls. Which means jack would need to know these are stereo/surround collections, adding API complexity and compatibility updates. And then this calls into question issues of panning.
Additionally
y as someone noted, you need temp buffers per output per adjusted control. and if truly there can be no performance hit for an unadjusted control, this is perhaps not so bad, but both scenarios could put some fraction of users into maintaining their own build of jack, either to turn it on or off.
you have to do all sorts of things, so instead you
normally just reach for alsamixer or a physical volume control if you
Cant you in a lot of cases use amixer to adjust the volume for the interface? I admit I havent looked at this on my own machines.