Spatial Communications at Scale in Virtual Environments
summary
Dolby describes building large-scale spatial voice for virtual worlds, claiming 5,000 players on one server and supporting games with millions of concurrent users via sharded deployments (40,000 beta, 2 million peak). System uses a server-side spatial mixer with a custom spatial codec or HRTF-rendered stereo, prefers long hearing ranges to avoid one-way audio, and solves loudest-N artifacts. Production stack includes ML voice activity detectors, AI noise suppression and specialized music input chains to preserve intelligibility and realistic overlapping conversation.
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