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Sound pressure

In acoustics, sound pressure or acoustic pressure is the pressure difference between the ambient (average or equilibrium) atmospheric pressure and that of a sound wave. In air, sound pressure can be measured using a microphone, and in water with a hydrophone. The SI unit of sound pressure is the pascal (Pa).

Measurement, Sound pressure level & Sound measurements

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Sound pressure level

Logarithmic measureDecibelRoot mean squareNeperThreshold of human hearing
19 related topics

Sound measurements

Particle velocityLaplace transformSine waveAmplitudePhase shift
7 related topics

Inverse-proportional law

Sound intensityConvolutionSpecific acoustic impedance
3 related topics

Mathematical definition

Transmission medium
1 related topics

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Acoustic impedance
Z
Audio frequency
AF
Characteristic
Symbols
Particle displacement
δ
Particle velocity
v, SVL
Sound energy
W

Topics to explore

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Overview

Mathematical definition

Sound measurements

Inverse-proportional law

Sound pressure level

Advanced semantic analysis

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Map overview Semantic statistics

Sound pressure

Nodes44
Edges43
Triples63
Avg. degree1.95
Density0.045455
Components1

How this topic connects Entity context

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Sound pressure

Top relations

related to Examples · 10
Sound pressure → Because, Ears, Earth, Earth's, Human, Humans, Hz, SPL, The, While
related to External links · 9
Sound pressure → Comparison Chart, Loudness, Media, Sound, Sound Power, SoundDecibel, Two Commonly Confused Characteristics, Wikimedia CommonsSound Pressure, Wiktionary-logo-en-v2
see also · 9
Sound pressure → Acoustics, Branch, Device, Empirical, Fechner, Logarithmic, Psychophysics, Subjective, Unit
related to Sound pressure level · 5
Sound pressure → APL, Lp, Np, Sound, SPL
related to Acoustic impedance · 4
Sound pressure → Acoustic, Laplace, Pa, SI
related to Sound intensity · 4
Sound pressure → In, SI, Sound, Together
related to Multiple sources · 3
Sound pressure → Inserting, Sigma, The
is a · 2
Sound pressure → particle velocity, pascal
related to Inverse-proportional law · 2
Sound pressure → This, When
Acoustic impedance · 1
Sound pressure → Z

Important terminology Word statistics

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Important terminology

sound pressure displaystyle frac acoustic db level text particle wave spl intensity left right measured amplitude law distance velocity impedance

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Sound pressureAcoustic impedanceZ1.00infobox
Sound pressureAudio frequencyAF1.00infobox
Sound pressureCharacteristicSymbols1.00infobox
Sound pressureParticle displacementδ1.00infobox
Sound pressureParticle velocityv, SVL1.00infobox
Sound pressureSound energyW1.00infobox
Sound pressureSound energy densityw1.00infobox
Sound pressureSound exposureE, SEL1.00infobox
Sound pressureSound intensityI, SIL1.00infobox
Sound pressureSound powerP, SWL, LWA1.00infobox
Sound pressureSound pressurep, SPL, LPA1.00infobox
Sound pressureTransmission lossTL1.00infobox
Sound pressureis apascal0.90text
Sound pressureis aparticle velocity0.90text

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    Min side: 3
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