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Description

Acoustics plays major role in degrading the environmental quality of space which may lead to occupant discomfort. Acoustic Analysis deals with analysis of sound inside the room, sound transmission through rooms, speech intelligibility and background noise levels inside the room. The main objective of this analysis is to reduce reflections of sound inside the room, reduce the sound being transmitted from outside and increasing the quality of speech inside the room.

Inputs

The typical inputs required to undertake the analysis are:

Site plan
Floor plan
Elevations
One Hour Average Sound Level Contour from Local Government Body
Yearly Average Day Night Sound Level Contour from Local Government Body
Sound Transmission Class for all Windows, Doors and Walls from Architect
Sound Absorption Coefficients for various materials from respective manufacturers
3D Building model (optional)

Outputs

The typical outputs generated from the analysis are graphical and tabular representations of:

Reverberation Time Calculations for rooms
Background noise level calculations

Tools & Approach

Ecotect v5.6
Models are directly created in Ecotect using drawings and specifications provided
BIM models created in the Revit Architecture 2009 suite can be imported via gbXML for geometric representation only

Relationship to LEED^® Credits

USGBC LEED^® offers one prerequisite for schools under Environmental quality category requiring minimum background noise and minimum Reverberation Time inside the classrooms. Two credits can be achieved if the background noise level of class rooms is maintained within the prescribed limits.

Consulting Support

The analysis can be executed multiple times for various design configurations or application of different materials to get optimum voice clarity inside the room and minimum background noise level.