Securex provide acoustic simulation to indicate the calculation of the distribution of direct sound levels as well as total sound levels, and speech intelligibility. Our report include top view of the loudspeaker placement and intuitive investigation of sound distribution with Mapping of Direct SPL (Z or A-Weighted) and speech intelligibility as STI (IEC 60268-16).
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Sound Pressure Level (dB) Speech Transmission Index (STI)
Network Public Address System by Bosch
Long Range Accoustic Communication Devices by Ultra Electronics.
The Ultra Electronics Group manages a wide range of specialist capabilities, generating highly-differentiated solutions and products in the Defence & Aerospace, Security & Cyber, Transport and Energy markets. We meet customer needs by applying electronic and software technologies in demanding environments and meeting critical requirements.
The lightest and loudest mass notification speakers on the market, with outstanding speech clarity with an average Speech Transmission Index* (STI) rating of 0.85 out of 1.0. Due to this ability to transmit human voice messages over long distance at great clarity, these speakers are the solution for PA professionals to design and build a project with fewer number of speakers versus traditional speakers for a given site, thereby saving costs in cabling, installation and maintenance.
*The closer the STI value approaches zero, the more information is lost. STI of 1 means perfectly intelligible speech.