![]() It is therefore possible to immediately make the necessary adjustments to improve speech intelligibility as required and measure again. In the XL2 Sound Level Meter this broadband noise level can now be directly defined within the instrument the XL2 then compensates for this ambient noise when displaying the results. In this case the expected ambient noise may be specified as a single broadband value such as between 70 and 80 dBA. It is sometimes impractical or even impossible to measure background noise at a location e.g. The handheld XL2 is then used, throughout the entire public area, to measure and store the sound level and speech intelligibility values.īackground noise can significantly affect the intelligibility of emergency announcements. ![]() The TalkBox provides the reference sound source, playing the standardized speech intelligibility test signal into the announcement microphone. An ideal measurement system for voice evacuation system verification is the XL2 Sound Level Meter in combination with the NTi Audio TalkBox. Professional verification of an evacuation system requires that the announcement level, the background noise level as well as the speech intelligibility values be measured and documented. This feature allows users to move efficiently through measure-adjust-measure cycles on site and immediately improve the speech intelligibility. It is a small emergency broadcast system, mainly used in small shopping malls, office buildings and exhibition halls.The XL2 Sound Level Meter also considers, in real-time, the effect of background noise on the intelligibility of the announcement. This broadcast system can be used in fire emergency broadcast, daily business broadcast and background broadcast. It meets the standards of “EN54 – Part 16 Voice Alarm Control and Indicating Equipment” Automatic Control System for Fire Protection”. EVAC Solution in Bangladesh :ĮN54-16 is a Integrated Voice Alarm PA System which supports timing programming and manual operation, and is manually prioritized it supports real-time detection of equipment operation status and operation log records. In order to meet the market requirements, DSPPA has launched into the market PAVA6000 voice evacuation system. The requirements related with voice evacuation system including EN54-4 (Power supply equipment), EN 54-16 (Voice alarm control and indicating equipment) and EN 54-24 (Voice alarm loudspeakers). The EN 54 Fire detection and fire alarm systems is a mandatory standard of European Union market that specifies requirements and laboratory test for every component of fire detection and fire alarm system. It is an optical voice evacuation solution for shopping mall, office building, airport, railway station, etc. It also supports remote computer monitor and control. It supports auto diagnoses of speaker line, amplifier, emergency microphone, remote paging microphone, etc. The whole Voice Evacuation System is designed according to EN54-16 requirements. ![]() Voice Evacuation Host is the control center of Voice Evacuation System. ![]() Also referred to as Voice Evac systems, they are usually part of high-end fire alarm systems, primarily in places of assembly.Įvacuation Voice Alarm PA System in Bangladesh : Voice evacuation systems are specially designed public address systems, typically used during fire situations, which the Life Safety Code requires for certain types of installations. Remote Paging Microphone, 12 zone expandable to 120 zones Voice Alarm Evacuation System Price in Bangladesh: 6 Zone EVACController with built-in 240W class-D amplifierĦ Zone EVAC Controller with built-in 500W class-D amplifierĦ Zone EVAC Router with built-in 240W class-D amplifierĦ Zone EVAC Router with built-in 500W class-D amplifier
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