IfcSoundScaleEnum

Definition from IAI: This enumeration defines the different sound scales:

- DBA: Decibels in an A-weighted scale
- DBB: Decibels in an B-weighted scale
- DBC: Decibels in an C-weighted scale
- NC: Noise criteria
- NR: Noise rating
- USERDEFINED: User-defined sound scale
- NOTDEFINED: Undefined sound scale

> HISTORY: New enumeration in IFC R2.0

EXPRESS specification:

TYPE IfcSoundScaleEnum = ENUMERATION OF
( | DBA, DBB, DBC, NC, NR, USERDEFINED, NOTDEFINED);
END_TYPE;