Use the Microsoft Edge Settings menu to change camera and microphone permissions.
1. Click the menu button and select Settings.
2. Click Cookies and Site Permissions
3. Scroll down to All Permissions and Select Microphone / Camera.
4. Activate the Sites can ask to use your Microphone option. Repeat the process for the Camera and activate the Sites can ask to use your Camera option.
Note: If you have multiple microphones or cameras, you can choose which one to use as the default device for Microsoft Edge using the drop-down menu.