A Repeating Chirp Near the Bedroom Ceiling

DxDetective case Round 1 of 1

Case setup 0 of 6 observations reviewed
Review the situation, then start the case.

Case situation

Review the situation before choosing a next action.

A brief chirp repeats near the bedroom ceiling after midnight. The household is not sure whether it comes from a timer, a nearby appliance, or the small ceiling device in the hallway. The player needs to separate a passing sound from a repeatable device pattern.

Your task: Decide which observations clarify the signal and what the fictional case should check next.