sound pressure

noun

, Physics.

Also called excess sound pressure, the difference between the pressure at a point in a medium through which a sound wave is passing and the static pressure of the medium at that point.
effective sound pressure.

First recorded in 1890–95

The H1n records wide stereo audio and can handle high sound pressure levels.

An example is the decibel scale, which measures sound pressure level.

Yet the sound pressure level of voices in the noisy room might be 10 times higher.

For every 10 decibel increase, the sound pressure increases 10 times.

So a 20 decibel sound has not twice the sound pressure of 10 decibels, but 10 times that level.

April 24, 2024gallimaufry

[gal-uh-maw-free ]

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