Thanks — good question. You're asking how hosting your server in US West (Hillsboro, OR) will affect latency for a LiveKit voice agent. Here’s what matters and what you can do.
Short answer
• Hosting the agent in US West will give low network latency for users and services nearby.
• End-to-end voice latency is driven most by where your AI models (STT, LLM, TTS) run. If those models are co-located in the same region, you can hit sub‑second conversational turn times. If models are remote, each model call adds round-trip time and increases total latency.
Key points and recommendations
•
Agent ↔️
Model placement is critical: Co-locate your agent and all model providers in US West to minimize round-trip time between STT → LLM → TTS.
•
User ↔️
Agent latency: LiveKit’s real‑time network is optimized, so user connections to an Oregon-hosted agent will be low-latency for West Coast users.
•
Target: Aim for under 1 second from user stop → agent start by using streaming STT, a fast LLM (low time-to-first-token), and streaming TTS all in-region.
•
Deploy guidance: Use the region flag when creating agents (for example,
--region us-west
) and verify model providers support a US West endpoint or host your own models in the same region.
•
Measure bottlenecks: Monitor per-turn metrics (e.g., e2e_latency, llm_node_ttft, tts_node_ttfb) via the Agent Observability dashboard to find whether STT, LLM, or TTS is the dominant delay.
If you’d like, tell me:
• Which STT/LLM/TTS providers you plan to use (or if you’ll self-host models), and
• Your primary user regions
I’ll suggest a concrete deployment and expected latency profile.
Sources:
Building Performant Voice Agents in India | LiveKit |
Voice Agent Architecture: STT, LLM, and TTS Pipelines Explained | LiveKit |
Voice Agent Architecture: STT, LLM, and TTS Pipelines Explained | LiveKit |
Understand and Improve Agent Latency | LiveKit |
Understand and Improve Agent Latency | LiveKit, with interactive elements