How to Build a Real-Time Voice Agent with Gemini & ADK by Ashwini Kumar & Neeraj Agrawal, Google Cloud Blog
Google recently published a hands-on guide to creating a low‑latency, bi‑directional, real‑time voice agent using its Gemini model and the Agent Development Kit (ADK). Here’s the core breakdown: - Start with a basic conversational agent — one with persona and trained knowledge, but no external tool access. - Make it more capable by integrating tools like Google Search and the Maps MCP Toolset, giving your agent real‑world data and dynamic capabilities. - Use RunConfig with bi-directional streaming (BIDI) to configure seamless voice input/output and allow interruptions — for natural, conversational feel. - Manage concurrency with Python's asyncio and TaskGroup, enabling your system to listen, think, and speak simultaneously. - Encode audio responses in Base64 for smooth transmission, and stream text transcripts in real-time to support rich interaction. Everything you need is in the blog—code samples, configuration tips, and architectural insights to help you get started faster and smoother. https://cloud.google.com/blog/products/ai-machine-learning/build-a-real-time-voice-agent-with-gemini-adk?utm_source=chatgpt.com