Acoustic Impedance
Specific acoustic impedance is measure of the ability of a medium to transmit sound waves.
It can be expressed as
Z = P / v
= ρ c (1)
where
Z = acoustic impedance (Pa s/m)
p = sound pressure (Pa)
v = particle velocity (m/s)
ρ = density of medium (kg/m3)
c = velocity of sound (m/s)
The equation express the coupling between the vibrating particles in the medium.
Related Topics
• Acoustics
Room acoustics and acoustic properties. decibel A, B and C calculations. Noise Rating (NR) curves. Sound transmission through walls. Calculate sound pressure, sound intensity and sound attenuation.
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