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General| Brand | Tyco |
|---|---|
| Model | Fire Alarm |
| Category | Smoke Alarm |
| Language | English |
Lists relevant external publications and web resources for further information.
Overview of audio intelligibility and introduction to key topics.
Explains the necessity of audible and understandable emergency messages.
Explains decibels and Ohm's Law in audio engineering.
Discusses how the ear perceives sound and its relation to SPL.
Covers reverberation and its impact on intelligibility.
Explains the inverse square law and SPL decrease with distance.
Identifies factors affecting speech intelligibility like noise and acoustics.
Explains methods like CIS, STI, RASTI for measuring speech intelligibility.
Discusses software and methods for predicting system performance.
Illustrates a typical system, its parts, and how it functions.
Discusses requirements for sound levels and tones for emergency messages.
Explains intelligibility requirements and measurement standards according to NFPA.
Outlines steps for designing a speaker system, including room characteristics and calculations.
Provides tips for improving speech intelligibility in emergency systems.
Illustrates design methodology with examples like office spaces.
