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Close-Talking Voice Activity Detection

This demo shows the FBK real-time system for detection of speech activity using close-talk microphones, given the fact that the speakers overlap in time one each other.

The system works in two stages:

  1. The detection is based on the speech energy in each channel.
  2. Postprocessing is done to remove cross-talk false alarms based on the energy information of all signals, when more than one speaker is supposed to be active at the same time.

Possible applications: speech activity in automatic detection of group dynamics in small-group meetings.