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Tools · Updated 19 Oct, 11:14 pm IST

Google shows how to build voice agents that avoid dead air with ADK

Image: Google Developers Blog

Why it matters for readers: Explains why voice agents can go silent and how engineers fix it so conversations stay natural.

  • The ADK and gemini-3.8-live let developers implement non-blocking voice tools natively in Python.1
  • The guide recommends streaming tools, non-blocking FunctionTool definitions, and response_scheduling to avoid dead air.1
  • In a benchmark sales-report workflow, switching from a blocking tool to a streaming tool cut time to the agent's first words from 14.4 seconds to 1.2 seconds.1
  • The blog post includes a short demo video (ADK Live AI Concierge) showing scheduled responses in action.1
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