Anyone know what streaming technology or methodology the Houseparty app uses to ensure that there's no lag between guests' streams?
Houseparty uses WebRTC as it's base technology and currently uses Tokbox, a provider of video/audio WebRTC services.
Latency should be typically ~ 300 msec between parties plus any network latency. Typically anything < 500 msec delay is not perceivable by small group conversation.