acoustic impedance

American  

noun

Acoustics.

1. the total reaction of a medium to the transmission of sound through it, expressed as the ratio of sound pressure to particle velocity at a given point in the medium.

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Example Sentences

While employed as a research engineer for Bell Telephone Laboratories in Murray Hill, N.J., he helped develop a talking typewriter and wrote papers on room acoustics, sound absorption and acoustic impedance.

From New York Times