Apple - No sound MacBook Pro 2016 13" touchbar macOS Sierra 10.12.2
Fixed it with sudo killall coreaudiod
If your Control Strip stops working after sudo killall coreaudiod try sudo killall ControlStrip afterwards.
I experienced this problem with a MBP 13" TB, which I use with AirPods. Probably the combination of using Airpods/a bluetooth audio device is what's causing this problem.
What worked for me was:
- sudo killall coreaudiod
- sudo killall ControlStrip
- Open/Close laptop lid