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Sub-500ms Realtime Voice AI: How to Optimize WebRTC & Audio Streaming

2026-10-04 • 9 min read • Voice AI • By Masbin Digital Labs

Standard HTTP request-response pipelines create an awkward 4-second delay in voice assistants. Full-duplex WebRTC audio streaming enables true conversational fluidness.

1. Chunked Audio Streaming

By processing 20ms audio frames through low-latency codecs, synthesis audio starts playing before the language model finishes its sentence.

2. Hardware-Accelerated Turn Taking

Client-side Voice Activity Detection immediately cuts audio playback upon detecting human speech, preventing the agent from talking over the user.

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