How to Build a Browser-Based Voice Assistant With the AssemblyAI Voice Agent API
From The Good Tech Companies by HackerNoon
May 1, 2026 · 5 min
About this episode
This episode discusses building a browser-based voice assistant using the AssemblyAI Voice Agent API.
This story was originally published on HackerNoon at: https://hackernoon.com/how-to-build-a-browser-based-voice-assistant-with-the-assemblyai-voice-agent-api . Build a real-time voice assistant in ~120 lines using a single WebSocket API. No separate STT, LLM, or TTS services needed. Check more stories related to tech-stories at: https://hackernoon.com/c/tech-stories . You can also check exclusive content about #ai-voice-agent , #real-time-voice-ai , #websocket-voice-ai , #browser-voice-assistant , #assemblyai-voice-agent , #javascript-voice-app , #ai-audio-streaming , #good-company , and more. This story was written by: @assemblyai . Learn more about this writer by checking @assemblyai's about page, and for more stories, please visit hackernoon.com . This tutorial walks through building a real-time voice assistant using a unified API that handles speech recognition, language processing, and speech synthesis over a single WebSocket connection. The key takeaway is that modern voice AI development can be significantly simplified by replacing multi-service pipelines with integrated architectures.
Topics covered
- voice assistant
- WebSocket API
- real-time voice AI
- speech recognition
- language processing
- speech synthesis
Keywords
- voice assistant
- AssemblyAI
- WebSocket
- real-time AI
- JavaScript
- speech recognition
- language processing
Mentioned in this episode
Organizations: HackerNoon, AssemblyAI
Products: AssemblyAI Voice Agent API, WebSocket API, real-time voice assistant, speech recognition, language processing, speech synthesis, JavaScript voice app
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