VAD (Voice Activity Detection)

Category: science

A signal-processing algorithm that identifies when a human user is speaking and when they have paused.

VAD is the "ear" of the agent. It must distinguish between a user taking a breath, background noise (like a fan), and actual intent. Advanced VAD systems use lightweight neural networks to filter out noise, ensuring the agent doesn’t "barge in" or stop listening mid-sentence due to a brief silence.

Common Examples

• We tuned our VAD threshold to be more aggressive, preventing the voice agent from incorrectly triggering on background environmental noise in the facility.
• A poorly configured VAD algorithm is the primary cause of agents speaking over users during natural conversational pauses.