Medium 1: Medium 2: Frequency (kHz): 1.0 Wave amplitude: 1.0

Z₁—

Z₂—

R (reflection)—

T (transmission)—

Transmission loss—

SWR—

|R|² + |T_energy|²—

Acoustic Impedance
Z = ρ·c (kg/m²s = rayl). At boundary:
R = (Z₂−Z₁)/(Z₂+Z₁)
T = 2Z₂/(Z₁+Z₂)
SWR = (1+|R|)/(1−|R|)

Wave propagation: incident (blue), reflected (orange), transmitted (green)

Standing wave pattern (amplitude envelope)