Sabine reverberation formula

E168704

The Sabine reverberation formula is a foundational equation in architectural acoustics that relates a room’s reverberation time to its volume and total sound-absorbing surface.

All labels observed (2)

How this entity was disambiguated

Statements (44)

Predicate Object
instanceOf acoustical formula
physical law
applicationDomain classroom acoustics
concert hall acoustics
recording studio design
theatre acoustics
appliesTo auditoriums
concert halls
enclosed rooms
lecture rooms
assumes diffuse sound field
relatively low average absorption coefficients
uniform distribution of absorption
category acoustics equations
empirical physical formulas
defines A as total absorption in square metres sabin
T as reverberation time in seconds
V as room volume in cubic metres
describes reverberation time in an enclosure
developedBy Wallace Clement Sabine
expresses T inversely proportional to total absorption
T proportional to room volume
field architectural acoustics
room acoustics
hasUnitConstant 0.049 for imperial units
0.161 for SI units
historicalPeriod late 19th century
influenced modern auditorium design
standards for room acoustics
limitation less accurate for highly absorptive rooms
less accurate for non-diffuse sound fields
mainQuantity reverberation time
room volume
total sound absorption
namedAfter Wallace Clement Sabine
relatedConcept Eyring reverberation formula
sabin (unit of sound absorption)
relates reverberation time to room volume and total absorption
symbolicForm T = 0.049 · V / A (imperial units)
T = 0.161 · V / A (SI units)
usedFor acoustic treatment planning
design of room acoustics
estimating reverberation time
selection of acoustic materials

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Wallace Clement Sabine knownFor Sabine reverberation formula
Wallace Clement Sabine notableWork Sabine reverberation formula
this entity surface form: Sabine formula for reverberation time