Routing audio on Windows 10 isn’t easy and often the trickiest thing in the mix is the audio/sound driver that is installed. Once you have the drivers sorted out, you need to figure out how to route audio and get apps to listen to a device. Here’s how you can route your computer audio to a Skype call. This will allow whoever you’re calling to hear the audio from your computer e.g., music, or a video along with whatever you’re saying.
Route computer audio to Skype
Open the Control Panel and select Hardware and Sound. Click Sound under it. Go to the Recording tab. If you see ‘Stereo Mix’, make sure it is enabled. If you do not see it, right-click an empty area in the devices list and enable both the ‘Show Disabled Devices’ and ‘Show Disconnected Devices’ options.
Stereo Mix should appear. Enable it. If it doesn’t, you need to install the RealTek audio driver on your system.
Once you’ve enabled Stereo Mix, open Skype. Click the more options button next to your name and from the menu, select Settings. On the Settings window, go to the Audio & Video tab. Open the dropdown for ‘Microphone’ and select ‘Stereo Mix’ from the menu.
That will do the trick.
When you make a Skype call, the audio that’s playing on your system will be heard in the call. This should work if you’re using an in-line mic or if you’re using a headset. This will probably make the call a bit difficult since there’s audio in the background now. It’s a good idea to lower the volume in the app that’s playing the audio. Make sure you change the volume in the app and not the system volume. The system volume will change the volume you get in Skype and you don’t want that.
This will apply to all calls that you make in Skype. If you only need to route the computer’s audio to Skype for a single call, make sure you change the device under Mic back to what it was before you set it to Stereo Mix.
You should be able to do this in any app that can pick up audio from the mic and that lets you select which device to use as the mic. Most apps that allow you to make calls let you pick the audio device that you will use during the call. If you need to record system audio, or audio from an app, you can use Audacity.