Right click and check if it's blocked or not. If you're lucky, you'll see a device with a Printed circuit board icon called something like Stereo mix. If it's fairly empty, right click in the empty space and select both show disabled and show not connected devices. You'll need to go to Audio in Control Panel. My windows is not in English, but I'll try.įirst of all, mute your speaker and headphones, it's easy to accidentally create a loop, and it would start blasting at max volume soon.

The downside is, there is a copy needed, so one output will be forward in time, besides, it puts stress on the cpu, so you should disable this feature every time you don't use it actively. There is a setting called Listen, and it copies the audio from the input (either physical or virtual) to the output of your choice. There are some hacks which let you something similar. Unfortunately, unlike Multi-monitors, Windows is just not capable of outputting the same thing at the same time on multiple audio outputs.

Speakers and headphones simultaneously