Sound Power to Sound Pressure Calculator Eq. 1 Units
Blocks shown as light blue are editable
sound power level Lw = dB
directivity of sound source Q = -
distance from source r = ft
area of ith surface S1 = ft2
absorption coefficient for ith surface α1 = -
area of ith surface S2 = ft2
absorption coefficient for ith surface α2 = -
area of ith surface S3 = ft2
absorption coefficient for ith surface α3 = -
area of ith surface S4 = ft2
absorption coefficient for ith surface α4 = -
area of ith surface S5 = ft2
absorption coefficient for ith surface α5 = -
area of ith surface S6 = ft2
absorption coefficient for ith surface α6 = -
Calculated Results Equation 1
sum of all surface areas S = ft2
room constant Eq. 2 R = -
ave. absorption coef. room surfaces Eq. 3 α = -
sound pressure level Lp = dB
Sound Power to Sound Pressure Calculator Eq. 4 Units
Blocks shown as light blue are editable
sound power level Lw = dB
directivity of sound source Q = -
distance from source r = ft
Calculated Results Equation 4
sound pressure level Lp = dB