Windows 10: No Audio after I tried to enable Realtek Stereo Mix

Hello, I have 2 monitors, one a Dell and the other is by LG. After getting both monitors set up and running correctly as a Dual Display, I noticed that the audio was coming only from the Dell monitor rather than the primary one, which is the larger LG. The LG is UHD whilst the Dell is not. The LG al

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Stereo mix showing but not showing audio

A potential solution for those who use digital outputs to a separate sound system for your sounds (rather than speakers or headphones), and have tried all the normal suggestions when Stereo Mix shows up on the recording tab, but shows no audio, and programs
such as Audacity won't record a signal.

I use digital optical out from my sound card (Realtek High Definition Audio) to my sound system. There are therefore no speakers connected, and no speakers show in the sound settings. And no audio showing in Stereo Mix.

However, connecting headphones instantly solves the problem - stereo mix shows audio, programs like Audacity can record again (plugging headphones in the headphones jack makes no difference to the digital optical output signal = does not mute it).

I would be really interested to know why Stereo Mix will not show audio if there are no speakers or headphones connected.

 

Stereo Mix Problems

Hello

A pleasure to help you as an independent collaborator.

Regarding the incident, to solve the problem, I suggest you uninstall and reinstall the audio drivers.

If possible, follow the instructions and procedures in the next section.

https://support.microsoft.com/en-us/help/402347...

If you can not finally enable Stereo Mix on my Windows 10, I suggest the following solutions offered in the community.

https://answers.microsoft.com/en-us/surface/for...

I hope it is a great help and succeed in activating Stereo Mix.

regards

 

Windows 10 Stereo Mix

Hi Nicholas,

Thank you for posting your query in Microsoft Community.

Sorry for the inconvenience caused.

I suggest you to follow the methods below and check if it helps:

Method 1:

Try the following steps to enable the stereo mix and check if that help.



a) Right click on the audio icon in your system tray and select “Recording Devices” to open the Recording device settings in the “Sound” window.



b) In the pane, right-click on a blank area, and make sure both “View Disabled Devices” and “View Disconnected Devices” options are checked. You should be able to see the “Stereo Mix” option appearing.



c) Right-click on “Stereo Mix” and click “Enable” to be able to use it.



This should enable the “Stereo Mix” on Windows



Method 2:

If the issue persists then I suggest you to uninstall and reinstall the sounds card driver and check if it helps.

• 
  Right Click on Start, Select Device Manager.
  
• 
  Find and double-click the category of device whose driver you wish to uninstall.
  
• 
  Right-click the device, and click Uninstall.
  
• 
  Windows will prompt you to confirm the device’s removal. Click
  OK to remove the driver.
  
• 
  After the uninstallation is complete, reboot your computer as soon as possible
  

Hope the above information helps. Reply with necessary information and the result to help you further. Thank you.