IfcSoundValue

Definition from IAI: A sound value or time series of sound values at a specified frequency.

> HISTORY: New entity in IFC 2x2.

EXPRESS specification:

ENTITY IfcSoundValue
SUBTYPE OF ( | IfcPropertySetDefinition);
SoundLevelTimeSeries | : | OPTIONAL IfcTimeSeries;
Frequency | : | IfcFrequencyMeasure;
SoundLevelSingleValue | : | OPTIONAL IfcDerivedMeasureValue;
END_ENTITY;

Attribute definitions:

SoundLevelTimeSeries | : | A time series of sound pressure or sound power values. For sound pressure levels, the values are measured in decibels at a reference pressure of 20 microPascals for the referenced octave band frequency. For sound power levels, the values are measured in decibels at a reference power of 1 picowatt(10^(-12) watt) for the referenced octave band frequency.
Frequency | : | The frequency of the sound.
SoundLevelSingleValue | : | A sound pressure or sound power value. For sound pressure levels, the values are measured in decibels at a reference pressure of 20 microPascals for the referenced octave band frequency. For sound power levels, the values are measured in decibels at a reference power of 1 picowatt(10^(-12) watt) for the referenced octave band frequency.

Inheritance graph

ENTITY IfcSoundValue;
ENTITY IfcRoot;
GlobalId | : | IfcGloballyUniqueId;
OwnerHistory | : | IfcOwnerHistory;
Name | : | OPTIONAL IfcLabel;
Description | : | OPTIONAL IfcText;
ENTITY IfcPropertyDefinition;
INVERSE
HasAssociations | : | SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcPropertySetDefinition;
INVERSE
PropertyDefinitionOf | : | SET [0:1] OF IfcRelDefinesByProperties FOR RelatingPropertyDefinition;
DefinesType | : | SET [0:1] OF IfcTypeObject FOR HasPropertySets;
ENTITY IfcSoundValue;
SoundLevelTimeSeries | : | OPTIONAL IfcTimeSeries;
Frequency | : | IfcFrequencyMeasure;
SoundLevelSingleValue | : | OPTIONAL IfcDerivedMeasureValue;
END_ENTITY;