During the PostX 0.4.2 development I made scripts, which enabled the user to control the volume of multiple sound devices with the same key press. The end result is that you can adjust the volume of Bluetooth headset, HDMI audio source or a standard volume output with the same keys.
These scripts are written with Bash and you should have pulseaudio, pulseaudio-utils and xfce4-notifyd installed in order to use these. I also recommend that you install xbindkeys so that you can easily map your keys.
Here is a snippet from my my .xbindkeysrc file:
Get The latest version done with QT5 & Python .
Here is a new Pulseaudio volume control application for you to enjoy.
Let’s start with a license and a screenshot.
Vol2x Copyright (c) 2016 JJ Posti <techtimejourney.net>
Vol2x is a Pulseaudio sound changing program.The program comes with ABSOLUTELY NO WARRANTY;
for details see: http://www.gnu.org/copyleft/gpl.html.
This is free software, and you are welcome to redistribute it under
GPL Version 2, June 1991.
The program has been done with Python and QT. So, if you use desktop which relies on GTK2/3 make sure to install qt4-qtconfig.
With Qtconfig you can make sure that the outlook is balanced between QT and GTK+ applications. I recommend using Clearlooks theme. Remember to save changes before exiting Qtconfig.