noun
a measure of the opposition to the flow of acoustic energy through a medium, typically denoted by the symbol Z
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The acoustic impedance of a material is a measure of how much sound is reflected or transmitted through it.
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When choosing speakers, consider the acoustic impedance to ensure optimal sound quality.
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I had no idea that the acoustic impedance of the walls would affect the sound so much.
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His stubbornness acted as an acoustic impedance, blocking out any new ideas or perspectives.