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sound pressure

noun, Physics.
Also called excess sound pressure, instantaneous 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.
1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for sound pressure
  • Since sound enters the cochlea at its base, the high-frequency hair cells get the brunt of the incoming sound pressure.
  • Sound is produced by the vibration of sound pressure waves in the air.
  • sound pressure levels are used to measure the intensity of sound and are described in terms of decibels.
  • One-third octave band sound pressure levels will be presented.
  • sound pressure levels characterized as tonal can have lower limits.
  • The frequency weighted sound pressure band that best represents the way the human ear perceives sound.

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