Voice Activity Detection (VAD) is a technology used to detect the presence or absence of human speech in audio signals. It is primarily used in various applications such as telecommunications, speech recognition, audio recording, and more to differentiate between portions of audio that contain speech and those that do not. ### Key Aspects of Voice Activity Detection: 1. **Purpose**: VAD systems help in efficiently processing audio data by focusing on segments where speech occurs, thereby saving bandwidth and computational resources.
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