This extension adds a little entry to the status-menu that shows the currently selected pulse-audio-output device. Clicking on that will open a submenu with all available output devices and let's you choose which one to use.
Since version 5, it also provides a shortcut to quickly switch output sources:
<Super>+q
Most importantly this extension is as simple as possible. Therefore it does not include an input switcher or similar. See Audio-Input-Switcher (https://github.com/anduchs/audio-input-switcher) extension for microphone selection.
Either via
https://extensions.gnome.org
or via
git clone https://github.com/adaxi/audio-output-switcher.git ~/.local/share/gnome-shell/extensions/audio-output-switcher@anduchs
Then resart the gnome-shell via Alt+F2 then r and enable the extension using gnome-tweak-tool
To update later, just issue
(cd ~/.local/share/gnome-shell/extensions/audio-output-switcher@anduchs && git pull)
Originally authored by @anduchs.