Audio Visual & Media · PA & Voice Evacuation
Clear, intelligible announcements every day — and reliable evacuation messages in an emergency. FISSS designs and commissions EN54 voice alarm and public address systems.
We model speaker coverage and intelligibility for each zone, select EN54-certified equipment, and design amplifier and battery capacity for the required standby and alarm periods. The system receives signals from the fire alarm panel and plays pre-recorded Arabic and English messages automatically, while day-to-day paging and background music run in the same zones.
| Standards | EN 54-16 control equipment, EN 54-24 loudspeakers |
|---|---|
| Monitoring | Continuous loudspeaker-line and amplifier supervision |
| Intelligibility | Designed and verified for speech transmission index (STI) |
| Fire interface | Automatic evacuation messages from the fire alarm system |
Designed to EN 54 and BS 5839-8 principles and coordinated with Qatar Civil Defence Department (QCDD) requirements.
Hard surfaces and high ceilings cause echo. Speaker type and spacing are chosen to achieve intelligible speech.
Line and amplifier monitoring ensures faults are reported before an emergency.
Voice alarm interfaces are tested jointly with the fire alarm contractor for Civil Defence approval.
Yes. Pre-recorded evacuation and alert messages are commissioned in both languages.
No. A voice alarm system uses certified, monitored equipment with backup power for life safety; a basic PA system does not.
Share floor plans, a BOQ or a short brief. Our engineers will size the PA & Voice Evacuation design, recommend suitable equipment and confirm the next step for your site.
