Voice Activity Detection (VAD)

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Voice Activity Detection (VAD) is the process of determining whether a segment of audio contains speech or not.

A conferencing app uses VAD to detect when someone starts talking, automatically unmuting their audio.

It uses energy thresholds, spectral features, or AI models to distinguish speech segments from silence or noise.

At ai-coustics, we integrate VAD to improve enhancement pipelines, trigger processing efficiently, and support real-time turn-taking.