Developed over the last decade, AcousticCalc helps designers predict sound levels at the room level from a distant sound source. The program uses the ASHRAE Handbook and ASHRAE’s 1991 Algorithms for HVAC Acoustics handbook methods with the “Source-Path-Receiver” model. This easy-to-use Windows-based program allows a user to define and save unlimited number of sound sources, save and define unlimited number of sound “paths” (composed of long list of possible duct component types) and model the ceiling effect and three different models for room effect. AcousticCalc allows a user to import and export (share) sound sources, user-defined devices, terminal units, and duct silencers with other users. Easy-to-navigate “tree” modeling allows an unlimited number of sound sources, paths and rooms.
AcousticCalc allows the user to create multiple scenarios, so the designer can optimize the design for the acoustical criteria of a given room or space.
AcousticCalc also allows the user to “mark” component breakout sound for calculation and inclusion, if the designer deems the component to be located such that breakout sound should be considered.
Reports and graphs from AcousticCalc include: