PA/VA sound system and voice evacuation
In an emergency, a clear voice message saves lives more effectively than a simple siren.
Guided voice evacuation and EN 54 certified, not just a siren that scares. We install public address systems (PA/VA) interconnected with the fire alarm, to transmit clear voice messages that guide people to the exit. The same speakers can also broadcast announcements or ambient music in normal mode.
What we include
- Compliant Voice Alert and Evacuation (VA) Systems
- Public address and announcements (PA)
- Audio zoning and pre-recorded emergency messages
- Integration with fire detection (automatic triggering)
Frequently asked questions
Why does the ISU require that emergency sound systems be EN 54 certified?
EN 54 guarantees that the system withstands and operates under fire conditions (components, cables, line monitoring) and that the voice message reaches people intelligibly. A regular public address system does not offer these guarantees. Therefore, for voice evacuation, ISU only accepts EN 54 certified equipment, which we use.
Can I also use the voice evacuation (VA) system for ambient music or daily announcements in the store/hotel?
Yes, this is a major advantage: in normal mode it broadcasts background music and commercial or reception announcements, and in case of fire it automatically switches to the evacuation message. You invest only once in the infrastructure for two purposes. We configure the zones and content according to your needs.
What happens to the sound system if the fire alarm goes off while music is playing?
The system instantly stops music and announcements and switches to the evacuation message, with absolute priority, in the targeted areas. The switching is automatic, controlled by the fire control panel. This way the safety message cannot be covered by other audio content.
Why are fire-resistant cables mandatory in PA/VA systems?
For the system to continue to function and transmit messages while the fire is burning, the cables must withstand the temperature for a defined period of time. A regular cable would quickly melt, leaving areas without an announcement exactly when it is needed. That is why we use certified fire-resistant cables, according to regulations.
How does GreenSoft calculate the power and placement of speakers so that the message is intelligible in noisy environments?
We design based on room acoustics, background noise levels and speech intelligibility index (STI), sizing the number, type and power of speakers for each area. In noisy environments we provide additional speakers and level adjustment. The goal: for the message to be clearly understood anywhere in the building.
Shall we discuss your project?
Free initial technical consultation and quote within 3–5 business days.
