DEFINITION
VAD (Voice Activity Detection)
Voice Activity Detection
Definition
An audio processing technique that identifies and isolates segments containing speech from background noise or silence. Used to optimize transcription by only processing audio frames that contain actual voice content, reducing computational overhead and improving real-time performance.
Examples in the Wild
- Example 1:Vyvoice uses an efficient VAD loop to ensure only speech segments are processed for transcription
- Example 2:Real-time voice command systems use VAD to trigger processing only when speech is detected