Double the Distance. Hear the Drop.

Name: Double the Distance. Hear the Drop.
Uploaded: 2026-11-13T19:52:17+00:00
Duration: 12 s
Description: Hear the same sound at simulated distances of 1, 2 and 4 metres. Each doubling lowers its level by about 6 dB in this model.

Hear the same sound at simulated distances of 1, 2 and 4 metres. Each doubling lowers its level by about 6 dB in this model.

What to listen for

Listen at a steady volume. The four passes represent 1 m, 2 m, 4 m and a return to 1 m.

In this free-field model, doubling distance quarters sound intensity, a drop of about 6 dB. The demo changes playback level to illustrate the effect. Room reflections and source direction can change the result in practice.

Hear how echo timing can reveal distance

OpenStax University Physics on sound intensity