Short journal · Original editorial · Observation before explanation
A sound seems softer from a different seat.
An explanation should not erase the observation that prompted it. Record what happened, under which conditions, and what you still do not know. A plausible interpretation can remain a hypothesis while you decide what would help distinguish it from alternatives.
Compare the position before deciding the sound source has changed.
Notice what the change asks of another person. An experiment is more considerate when their choice and limits remain visible.
Try a question
What would you notice after trying this in one small, real situation?