The easiest way to play music in the background during Live Events is to use your phone or wired/wireless speakers. If you want to capture the computer audio directly, you will need to use third-party software like OBS or a physical mixer itself as our platform only supports 1 audio input.
Note that you will need to restart your computer after downloading. You can watch this YouTube video for a quick tutorial. Using OBS and live streaming at the same time might be too taxing for some computers. The recommended RAM is at least 8GB. OBS is a free third-party software. If you encounter issues using it, it's best to check their help page here.
Here are other ways you can prepare for your Live Event session.