Place it right after the reveal in your edit, following a sudden suspense hit, then follow with a confused huh reaction for the second beat. It works best as the question before the answer shot, not under dialogue.
इस साउंड के बारे में
This is a very short spoken clip of a voice asking 'what in the world could it be' in a puzzled, drawn-out way, lasting under two seconds. It gives a baffled, curious feeling, like stumbling on something strange and needing an answer right away, which makes the confusion feel funny rather than serious.