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Build a voice agent with a chained STT-LLM-TTS architecture

Blog post from AssemblyAI

Post Details
Company
Date Published
Author
Kelsey Foster
Word Count
3,648
Company Posts That Month
44
Language
English
Hacker News Points
-
Post removed?
No
Summary

Voice agents are revolutionizing business interactions by employing a chained architecture integrating speech-to-text (STT), large language models (LLM), and text-to-speech (TTS) technologies to automate workflows and create conversational interfaces. This architecture facilitates real-time voice interactions by converting spoken input into a text response and back to audio through a low-latency streaming pipeline. Companies can choose between building their own pipeline, which offers customization but involves complex integration of multiple providers, or using a managed service like AssemblyAI's Voice Agent API, which simplifies deployment by handling the entire process through a single WebSocket connection at a flat rate. The key to effective voice agents lies in minimizing latency through streaming architectures, using fast models, and pre-warming connections, with an emphasis on precise orchestration to manage conversation flow, turn detection, and error recovery.

Trends Found in this Post
Trend Post Mentions Total Month Mentions Posts Companies MoM
Real-time 58 6,296 1,346 246 -2%
LLM 56 5,932 1,046 223 -2%
Voice AI 56 2,379 221 38 -3%
Reinforcement learning 1 104 49 23 -14%
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