Once downloaded and installed, open the OBS application. Setting the audio interface as the audio device To start, navigate to the OBS website and download the compatible version of OBS software for your system. The video below explains the same steps as the article: OBS is a free program that allows you to stream audio and video to online platforms such as Facebook, Twitch, and YouTube. This is a guide to setting up your audio interface in Open Broadcaster Software (OBS) on a Mac. For instructions for Windows computers, please see the following article: How to set up your audio interface in OBS (Open Broadcaster Software) on Windows. We are aware of an issue on Mac with 4th Gen Scarlett Solo and 2i2, where OBS will also record the loopback channels on these devices, currently, there is no workaround for this, and it is being looked into. Applies to: All Focusrite audio interfaces