Place this clip in the middle of a pass-by sequence, after a distant approach sound and before a receding whoosh or engine fade. Follow it with a short whoosh for cartoons, or keep the next cut on a classroom reaction for lesson edits.
O tym dźwięku
This educational clip demonstrates the Doppler effect in about nine seconds, using a passing sound whose pitch changes as it moves toward and then away from the listener. Hearing that clear rise and fall feels satisfying and curious, like a classroom idea suddenly becoming obvious the moment you actually hear it in action.