Both use a test signal that injects a modulated signal into the system that imitates speech with its typical intensity fluctuations. To measure the intelligibility in an enclousure for evacuation messages, the accepted methods are the STI (Speech Transmission Index) and the STIPA (STI for Public Address) which is a simplification of the former. Other factors are the composition of the message, the tone of voice, the intonation and the pronunciation. The intelligibility is influenced in a decisive way by the physical characteristics of an enclosure (such as reflective and absorbent properties of the materials used in the building), the background noise and the acoustic energy generated by the installed evacuation system and received by the listener. The PA8506-V can be mounted in a 19” standard rack (3-unit height).The term “intelligibility” can be defined as the proportion of the content of a message that can be correctly understood by listeners. The music amplifier operates also as stand-by amplifier: in case of speech amplifier failure, the music amplifier automatically replaces it. Both amplifiers are continuously monitored. The equipment is a fully 2-channel broadcast system including 2-built in class D amplifiers (2 x 250 W RMS, one for music and one for speech). According to EN54-16 standard, the built in surveillance function continuously checks the system for all possible failures. Other than paging and music broadcast operations, the PA8506-V is able to make alarm announcements in emergency situations. The front controls and the LCD display allow easy system setup. Furthermore, each output line consists of 2 speaker circuits (A & B) in order to guarantee the complete area coverage also in case of one loudspeaker circuit failure. The speaker output section consists of 6 separated lines each line has its own internal music level control. It provides also 6 zone outputs, with continuous speaker line monitoring function.
Voice evac systems generator#
It includes an emergency microphone, two class D power amplifiers, a message generator and BGM USB input. The PA8506-V has all the functional features normally provided by more expensive systems, and it is therefore characterized by an exceptionally favourable price/performance ratio. It can be possible to connect easily (by simple CAT 5 cable) two main PA8506-V to create systems of up to 12 zones, for a maximum of 1000W and connect up to 14 emergency microphone units (thanks to the PMB132 series). It’s designed for easy installation and operation in a wide range of applications where both emergency voice alarm systems and public address systems are required, always according to the voice evacuation safety standards. It enables background music and general or zone calls without interfering with its diagnostic routine. The PA8506-V is a PASO sound management system, which integrates emergency and general purpose broadcast functions. CMDS Compact Music Distribution Systems.P8136 / P8236 Multizone voice/music control system.
Voice evac systems series#
PA8500-VES Series – Voice evacuation system EN54-16.PAW series – ALL-IN-ONE Systems for wall mounting.
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