Small tool to change volume and display a notification.
Capabilities:
- Raise or lower the volume or mute/unmute the current interface. Shows a notification with the current volume and mute status.
- Cycle through audio interfaces. Easily switch to the next interface (e.g. internal speaker, HDMI, or bluetooth speakers) and show a notification about the current interface and all available interfaces.
- Plays a small sound if the interface is inactive (no audio playing through it) to get an acoustic feedback on what interface is used.