- Author
- Bunker, M. | Edwards, R.
- Title
- Huh? What Did They Say?
- Coporate
- Rolf Jensen and Associates, Inc., Deerfield, IL Rolf Jensen and Associates, Inc., Framingham, MA
- Journal
- NFPA Journal, Vol. 93, No. 1, 50-52, January/February 2002
- Keywords
- NFPA 72 | fire alarm systems | occupants
- Identifiers
- transmitting emergency instructions; clear verbal announcements; intelligibility defined; Sound Pressure Level (SPL); measuring intelligibility; voice intelligibility