Creating Sound Barriers

With directional sound help we can create sound barriers, which are not disturbing the surroundings and even though will signalize the need of evacuation at particular place.

Imagine today's situation at subway, where the supervisors has to have all the time visual control of the platform, so nobody is entering the restricted area behind the security zone. If this happens, the operator has to ask the person to leave immediately and to return to allowed location.

So with directional sound we can broadcast 24/7 the notification, which will hear only the person who's entering the restricted location.