[weepy]

It uses WebRTC for the video, but the audio latency of WebRTC is too large and uncontrollable.

As stated in the post, the audio uses a custom C++ UDP solution. As far as I know it's the first video calling app with very low latency audio.

[telesilla]

How do you deal with firewalls in that case? Sonobus has a similar problem that if you don't have accessible NAT you can't connect. You need a relay or central server which can get really expensive!

[weepy]

Basically similar issue to Sonobus. Relay could work buy it probably adds latency and it certainly adds complexity. I may know a way to improve some NAT configurations but need to do more research.

[audray]

Yeah one reason I like Jacktrip, you can optionally use servers to connect. Low latency is nice but it doesn't help in a performance when you can't connect to your group of musicians