Test Sending Audio/Video (Loopback)
You can start and stop Loopback Test clicking on the
loopback menu item from the “Help & Test” menu. In loopback mode you will receive what you are sending. A part of the interface becomes green when you are in this mode. In this way you can check the quality of your audio and video. To leave this mode click on “Stop Loopback” or on the button shown above.

As soon as you are in the loopback mode your microphone and video camera are automatically opened. This will allow you to test the quality of your Audio and Video setup and check if you are generating an echo (audio) for instance.
It is the perfect time to select the right audio input and output device from the audio setting panel that you can open via a click on the
button.
You can also check the quality of the video you are sending. If you think it is not good enough you can adjust the parameters in ViEVO.
Click on the "Stop Loopback" button in the middle frame or from the "Help & Test" menu or on the
button will automatically close your microphone and stop the video transmission.