∂ρ'/∂t + ∂(ρ'u)/∂x + ∂(ρ'v)/∂y + ∂(ρ'w)/∂z = 0
I = p² / ρc = pu = ρcu²
E = p² / ρc²
ρ' ∂u/∂t = − ∂p₀'/∂x
dV/dt + (1/ρ) ∇p₀' = 0
p₀'/p₀ = (ρ'/ρ)ʸ
Z_A = p / U = R_A + jX_A
p = (γ + 1) E
T₆₀ = 0.161 V / A
λ = c / f
W = I · 4πr²
SPL = 20 log₁₀(p / p₀)
Tom Danley
TOM DANLEY
CALCULATOR
All sound calculations
"The physics doesn't care about your opinion.
It just works."
In honor of the great author H.F. Olson
Harry Olson Series Classic acoustical engineering formulas Ohm's Law & Power Voltage, Current, Z, dBV, dBu, dBm Electroacoustics Transducer & array simulation Statistical RT60 Room reverberation time estimates Decibels (dB) SPL & Voltage references Speaker Design Enclosure volume & tuning Wave Equations Propagation & velocity analysis