Sound Intensity

Sound Intensity

NO-04
ASPCSPAdvanced

Formula
I = p² ÷ (ρc)
When to Use

Calculate the acoustic intensity from sound pressure. Used in free-field conditions.

Symbol Legend
SymbolMeaningUnitNote
ISound intensityW/m²
pRMS sound pressureN/m²
ρDensity of air1.2 kg/m³At standard conditions
cSpeed of sound in air344 m/sAt standard conditions

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