TL;DR — Discord Voice Chat

Design Discord's voice chat system that supports thousands of concurrent voice channels, each with up to hundreds of participants, delivering low-latency audio with spatial and priority-based mixing. Users can join a voice channel, speak freely, and hear others with sub-200ms mouth-to-ear latency — critical for gaming communication where timing matters. Key features: Join/leave voice channels with instant audio connection. Support up to 300 simultaneous participants per channel.