Hi everyone, I’ve built a chatbot in LiveKit Playg...
# ask-ai
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Hi everyone, I’ve built a chatbot in LiveKit Playground using Python, running locally. The problem I’m facing is that when STT (Speech-to-Text) fails, the agent message doesn’t show up in the chat at all. Has anyone run into this issue before or knows how to handle STT failures so the chatbot can still show a response or at least an error message instead of staying blank?
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Thanks for reaching out, Goutam. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
I'm here to help you smoothly handle STT (Speech-to-Text) failures in your LiveKit Playground chatbot and make sure your users always see helpful messages or error notifications. Here are some friendly approaches you can try: 1. Handle Transcription Failures: You can use the
on_input_speech_transcription_failed
event to catch when transcription doesn’t go through and show a clear fallback error message in the chat. This way, your users won’t be left wondering what happened if their audio wasn’t understood. 2. Use ErrorEvent Listener: For broader STT issues like network or API hiccups, the
ErrorEvent
listener is a great tool. It lets you notify users right away with a message or even a pre-recorded audio fallback, keeping the experience smooth. 3. FallbackAdapter for Resilience: To make your chatbot extra reliable, try implementing
FallbackAdapter
. It automatically switches between STT providers if one fails, so your users won’t experience interruptions or confusing errors. If you’d like, I’d be happy to walk you through detailed code examples or clarify any of these steps—just let me know! Sources: agent/main.py | livekit-plugins/livekit-plugins-gladia/livekit/plugins/gladia/stt.py | Events and error handling | LiveKit Docs