Fitzemeyer & Tocci
Oct 27, 20201 min
This presentation covers the basics of speech intelligibility in Emergency Voice and Alarm Communications Systems (EVACS). Designing beneficial and cost-effective EVACS system can be challenging. NFPA 72 requirements regarding intelligibility will be reviewed including a discussion of where speech intelligibility is required and review of the concept of acoustically distinguishable spaces (ADSs). Additionally, occupancy factors that impact speech intelligibility will be reviewed.
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