How to Use Microphone in RDP Session
Sometimes there is a need to use a microphone on a terminal server, for different tasks. The Remote Desktop Connection does not enable this feature by default, so you need to enable it manually. This instruction will tell you how to do it.
Run gpedit.msc on the local machine from which you will connect to the remote terminal. Navigate to:
Local Computer Policy -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host-> Device and Resource Redirection -> Enable "Allow audio and video playback redirection" and "Allow audio recording redirection".
The same policy should be applied on the remote server.
You need to enable Windows Audio on both machines in the services.msc. They must be in the “Running” state.
In the remote desktop connection settings, go to the "Local Resources" tab, click on "Settings…" and set the remote audio playback to "Play on this computer" and set the remote audio recording to "Record from this computer".
Click "OK" and connect to the remote desktop. Go to "Sound" in the "Recording" tab. And check for "Remote Audio".
Success! Now you can use microphone on remote terminal. The main thing in applications is to use the default microphone.