Cool product =)... Just out of curiosity, are you using distance from avatars to lower sound? So more distant conversations in say a party setting could be audible, but quieter? That would be a key distinction between discord and this in my mind.
Really neat then =)... Is that an area you've had to spend a lot of time in? Getting that multiple groups conversing where you can overhear / swap conversations or widen the conversation as well has have short sub-conversations is a really great dynamic that's sorely missing in this medium.