Active Vibro-Acoustic System

An active vibro-acoustic system combines vibration sensing and acoustic detection into a unified platform that monitors structural surfaces and surrounding air for mechanical disturbances, providing real-time alerts when physical intrusion, drilling, cutting, or impact activity is detected. The active designation refers to the system’s ability to both sense incoming vibrations and — in certain configurations — generate counter-vibration or masking signals to protect sensitive spaces from acoustic eavesdropping.

The sensing hardware typically consists of piezoelectric or accelerometer-based contact sensors bonded or clamped to walls, floors, ceilings, glass surfaces, and structural frames. These sensors detect frequency signatures in the range of 1Hz to 20kHz, with the processing unit filtering ambient mechanical noise to isolate threat-relevant vibration patterns — the distinct signatures of diamond-tipped drill bits, angle grinders, hydraulic cutters, and tunnelling activity each produce identifiable frequency profiles.

In the acoustic protection role, the system drives transducers mounted on wall and window surfaces to introduce broadband vibration noise that corrupts laser microphone returns and contact microphone readings from outside the protected space. Output power and frequency sweep patterns are calibrated to the room’s structural characteristics for consistent masking across the protected surface area.

Applications in Pakistan include secure government meeting rooms, intelligence facility protection, high-value asset storage, diplomatic premises, and corporate boardrooms where both physical intrusion detection and acoustic privacy are simultaneous operational requirements.

Tactical Supply Pakistan supplies active vibro-acoustic systems for professional installation in security-sensitive environments requiring combined intrusion detection and speech privacy protection.