`quantitykind:SoundPressureLevel`

http://qudt.org/vocab/quantitykind/SoundPressureLevel

Types: qudt:QuantityKind

Predicate	Object
`rdf:type`	`qudt:QuantityKind`
`dcterms:description`	Sound pressure level (\(SPL\)) or sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value. It is measured in decibels (dB) above a standard reference level.
`qudt:applicableUnit`	`unit:B` `unit:DeciB` `unit:DeciB_A` `unit:DeciB_ISO` `unit:DeciB_M` `unit:DeciB_Z` `unit:PHON`
`qudt:hasDimensionVector`	`qkdv:A0E0L0I0M0H0T0D1`
`qudt:informativeReference`	http://en.wikipedia.org/wiki/Sound_pressure#Sound_pressure_level
`qudt:latexDefinition`	\(L_P = 10 \log_{10} \frac{p^2}{p_0^2} dB\), where \(p\) is sound pressure and the reference value in airborne acoustics is \(p_0 = 20 \mu Pa\).
`qudt:symbol`	“L”
`qudt:wikidataMatch`	http://www.wikidata.org/entity/Q14515278
`rdfs:comment`	“Applicable units are those of quantitykind:SoundPressureLevel”
`rdfs:isDefinedBy`	http://qudt.org/3.1.11/vocab/quantitykind
`rdfs:label`	Show 15 values “Hladina akustického tlaku”@cs “Schalldruckpegel”@de “Tahap medan”@ms “gerilim veya akım oranı”@tr “livello di pressione sonora”@it “miary wielkości ilorazowych”@pl “niveau de pression acoustique”@fr “nivel de presión sonora”@es “nível de pressão acústica”@pt “sound pressure level”@en “уровень звукового давления”@ru “سطح یک کمیت توان-ریشه”@fa “كمية جذر الطاقة”@ar “利得”@ja “声压级”@zh
`skos:altLabel`	“Tahap tekanan bunyi”@ms
`vaem:todo`	“belongs to SOQ-ISO”

Generated 2026-02-23T17:46:31.048-05:00