Mumble: Open-Source, Low Latency, High Quality Voice Chat
We ran a mumble server for a 3,500 user, paid/paying, video game server community (Battlefield 3, circa 2010). We typically had 200+ users on, with 30-50 users per channel (three servers, two channels per server) plus a handful of regulars in the hangout channel. People would stream the same video on netflix and chat with eachother. It was quite the community.<p>The server ran on a "free-tier" server that the hosting company gave us for free, since we were renting three of their top-tier gaming servers. It used, at peak, 5-7% cpu, and 250mb memory, if I remember correctly. Normally it was closer to 2% cpu and 100mb memory. This was with all the settings jacked up to "ultra" or the equivalent.<p>Audio quality, and latency were amazing. It's really disappointing to use video chat like Google Meet, or Zoom after a product like Mumble.<p>My servers & mumble server finally got retired, but some of the regulars started their own server, and occasionally I'll login still and a bunch of them are still hanging out. Mumble is an incredible, extremely stable product. Highly recommend.