Voice Evacuation Systems
APPLICATIONS GUIDEVoice Evacuation SystemsAPPLICATIONS GUIDE: Voice Evacuation SYSTEMS2Voice EvacuationSystemsContentsSection 1: Introduction ........................................ ........................................ .....3What is the driving factor for Voice Evacuation Systems ? ................................3Section 2: Basics of Sound ........................................ .....................................3Wh at is sound? ........................................ ........................................ ....................3How does sound travel? ........................................ ........................................ .....3Section 3: Measuring Sound Output.
APPLICATIONS GUIDE: VOICE EVACUATION SYSTEMS 4 Decibel Audio levels are commonly used by engineers using “Decibels” (dB) to express ratios between levels, such as power, Volts, Amps, and Sound
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