Another software I've been testing for the last few days is called Jamkazam. It works both with Windows, Mac or Linux, and similar to Jamulus, it seems to solve the latency problem quite well (or in other words, which can be played on time or not). The software helps you make good audio and video settings. Yes, also video, which I find to be an essential tool for being able to take classes satisfactorily. You can also record both audio and video, and even broadcast live on platforms like YouTube, for example. At the interface level, he is much more accomplished than Jamulus, and you can also find many participants from all over the world. You will find a lot of information at Jamkazam.com.