AVTouchBar transforms the Touch Bar into a fully customizable control surface. It provides:

AVTouchBar -3.0.7.dmg is the disk image installer for AVTouchBar

AVTouchBar is not your average system preference pane. It’s a dedicated controller that places pro-level transport controls, audio meters, and timeline scrubbing directly onto your MacBook Pro’s Touch Bar.

: Resolved issues related to gathering system audio inputs and outputs. Automatic Output Switching