Because the sound is made in the air along this column, it does not follow the inverse square law, which says it drops off about two thirds every time you double the distance: 6dB every time you go from one meter, for instance, to two meters.
Fordi lyd bliver lavet i luften langs denne kolonne, følger det ikke afstandskvadratloven, der siger at den falder med to tredjedele hver gang man fordobler afstanden: 6db hver gang man går fra en meter, for eksempel, til to meter.