Debugging Voice Agents: How to Know if Your STT, LLM, or TTS Is the Problem

📰 Dev.to AI

Learn to debug voice agents by identifying issues in STT, LLM, or TTS layers

intermediate Published 23 Apr 2026
Action Steps
  1. Identify the symptoms of the issue, such as bizarre responses or pauses
  2. Isolate the problem by testing each layer (STT, LLM, TTS) individually
  3. Use logging and monitoring tools to analyze the input and output of each layer
  4. Compare the expected output with the actual output to pinpoint the faulty layer
  5. Apply fixes or optimizations to the identified layer to resolve the issue
Who Needs to Know This

Developers and engineers working on voice agents can benefit from this knowledge to efficiently debug and resolve issues

Key Insight

💡 Failures in voice agents are often not where you think they are, so a systematic debugging approach is crucial

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🤔 Debugging voice agents? Identify symptoms, isolate issues, and test each layer (STT, LLM, TTS) to fix problems efficiently!
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