Sac Talat Utrymningslarm [upd] -

(Swedish for “spoken” or “voiced”) represents a category of evacuation alarm systems designed to replace traditional sirens or bells with clear, pre-recorded or synthesized voice instructions . In critical situations, a human voice can reduce panic, improve comprehension, and guide occupants more effectively than coded tones.

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The concept of an evacuation alarm system: a human voice can reduce panic