Conclusion
In Closing
Designing Emergency Voice/Alarm Communications Systems for Speech Intelligibility requires awareness of the area dimensions, anticipated background noise level; wall, ceiling, and floor materials; anticipated occupancy, and any other characteristics that may influence the desired acoustical properties. This guide has presented a summary of those considerations in order to better understand the concept of speech intelligibility.
If an area is quite large, or is expected to have significant reverberation characteristics, or has other complicating influences such as high ambient noise, speaker selection and placement will require sophisticated modeling tools to determine the equipment needed for proper speech intelligibility. However, if the areas of concern are easily defined, are relatively small, and are expected to provide minimal reverberation, the methods described in this guide provide a good reference toward understanding proper speaker selection and placement.
Contact your local SimplexGrinnell representative for additional information concerning the
