sound pressure

American  

noun

Physics.

1. Also called instantaneous sound pressure.  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.

2. effective sound pressure.

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Etymology

Origin of sound pressure

First recorded in 1890–95

Example Sentences

Volume is measured in decibels, or units of sound pressure.

From Los Angeles Times

Unlike human eardrums and conventional microphones that detect sound pressure waves, spider silk responds to changes in the velocities of air particles as they are thrust about by a sound field.

From Science Daily

However, this pioneering stretchable synesthesia display shatters preconceived boundaries by offering unparalleled optical performance and precise sound pressure levels.

From Science Daily

It shows the average sound pressure over the given time period — and if you ran the app for a full 24 hours, the metric would be comparable with the metric used in many studies.

From New York Times

Sennheiser doesn’t really dive into what the practical differences are on an audio level aside from saying that the HD1 Free offer a wider frequency response and higher maximum sound pressure level.

From The Verge