Debugging Short Utterances in Voice Agents

LiveKit's blog breaks down why voice agents often go silent after short replies like "yes" or "ok," tracing it to turn detection failures. The most common cause is STT providers missing short speech and never emitting a final_transcript, which blocks end-of-utterance detection entirely. The post also covers overly aggressive or permissive endpointing delays and misconfigured noise cancellation that drops short audio as noise.