Barge-in Logic

Category: infrastructure

The capability of a voice agent to immediately stop speaking when it detects the user has started speaking over it.

Barge-in logic is essential for human-like interaction. It requires the agent to monitor its own audio-output stream while simultaneously listening to the VAD input stream. If the VAD detects speech, the agent must instantly drop the current audio-buffer and switch to a "listening" mode to keep the interaction natural.

Common Examples

• Implementing robust barge-in logic reduced user frustration by allowing them to quickly redirect the AI agent without waiting for the full response to finish.
• We had to hard-code the barge-in trigger to have the highest priority in our node orchestration layer to ensure sub-millisecond interruption response times.