We come across two terminologies to measure sound level in broadband based sound prediction model. 1) Acoustic Power level 2) Surface acoustic power level What is the difference and how the values are calculated with Mathematical description
January 25, 2023 at 7:16 amFAQParticipant
The basic difference between Acoustic Power Level and Surface Acoustic Power Level is the nature of source being quadrapole or dipole. Acoustic Power Level (dB) is useful for estimating the local quadrapole contribution to the total acoustics. W[dB] = 10 log10 [Integral(Acoustic Power*dV)/10^-12] Surface Acoustic Power (dB) is useful for estimating the local dipole contribution to the total acoustic power. W[dB] = 10 log10[Integral(Surface Acoustic Power* dA)/10^-12]
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