IfcSoundProperties

IfcSoundProperties

Definition from IAI: Common definition to capture the properties of sound typically used within the context of building services and flow distribution systems. Sound properties are sound power or pressure levels across eight octave bands specifying the amount of sound generation or sound attenuation.

IfcSoundProperties is a statically defined property set and should be attached to the instance(s) of IfcDistributionFlowElement through the IfcRelDefinesByProperties relationship.

HISTORY: New entity in IFC 2x2.

EXPRESS specification:

ENTITY IfcSoundProperties

SUBTYPE OF (

IfcPropertySetDefinition);

IsAttenuating

IfcBoolean;

SoundScale

OPTIONAL IfcSoundScaleEnum;

PointOfMeasurement

OPTIONAL IfcLocalPlacement;

SoundValues

LIST [1:8] OF IfcSoundValue;

END_ENTITY;

Attribute definitions:

IsAttenuating	:	If TRUE, values represent sound attenuation. If FALSE, values represent sound generation.
SoundScale	:	Reference sound scale
PointOfMeasurement	:	Point at which the sound measurement was taken. This value is used relative to the related element's local placement.
SoundValues	:	Sound values at a specific frequency. There may be cases where less than eight values are specified.

Inheritance graph

ENTITY IfcSoundProperties;

ENTITY IfcRoot;

GlobalId

IfcGloballyUniqueId;

OwnerHistory

IfcOwnerHistory;

Name

OPTIONAL IfcLabel;

Description

OPTIONAL IfcText;

ENTITY IfcPropertyDefinition;

INVERSE

HasAssociations

SET OF IfcRelAssociates FOR RelatedObjects;

ENTITY IfcPropertySetDefinition;