Sound Attenuation in Air

Level Drop: dB

Actual SPL: dB

Use this calculator to discover how many decibels sound will reduce in air. This calculator presumes omni-directionally dispersion typical of subwoofers. Here you get a -6dB level drop for every doubling of distance. Sound systems with controlled dispersion such as a line array will produce different results.

This calculator uses the formulas Published by the BBC amongst others.

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