What standardized audio pattern is mandated by recent fire codes for alarms?

The Temporal-3 pattern is recognized as the standardized audio signal for alarms in recent fire codes. This distinctive sound pattern consists of three short beeps followed by a pause, and it is specifically designed to alert individuals effectively in emergency situations. The reason this pattern is mandated is due to its effectiveness in capturing attention, differentiating it from other sounds, and indicating the presence of a fire or life-threatening situation.

The Temporal-3 pattern is advantageous because it is less likely to be confused with other signals or background noises, making it an effective auditory cue for evacuation. This clear distinction is crucial in circumstances where quick recognition of an alarm is needed, ensuring that individuals can respond swiftly and appropriately.

In contrast, other patterns, like the continuous tone or Temporal-2, do not provide the same level of clarity and urgency needed in emergency scenarios, which is why they are not the mandated standard.