Acoustics Program

Developed to help designers accurately model the sound level reaching building tenant's ears, the Trane Acoustics Program (TAP) "projects" equipment sound power data through the surroundings (e.g., floors, ductwork, walls), to estimate the sound level that will be heard. Industry-standard calculations published by ASHRAE's 1991 Algorithms for HVAC Acoustics handbook are the basis for this estimate. In TAP, you can model the conditions of an HVAC system by choosing specific equipment and building component criteria. TAP will analyze the sound path and calculate the total effect for the enclosed space.

You can continuously adjust the data and system design criteria to compare the results effortlessly. TAP will even plot presentation quality graphs of NC or RC levels. The Windows-based format means:

  • Easy-to-use Windows environment
  • Double click functionality
  • On-line help documentation
  • Professional presentation outputs

When multiple paths are involved (i.e., discharge airborne, duct breakout, return and/or casing-radiated), TAP not only determines the overall sound level at the receiver, but also how much of that sound each path contributes. Customize the descriptions of equipment and building components that generate, attenuate, reduce or regenerate sound. From your input, TAP will accurately model the sound level that will be heard by the building's tenants. Quickly design alternate systems and compare the results on presentation quality graphs. TAP has a built-in graphing function that plots the analysis results on an NC or RC chart.


HVAC acoustics, sound level prediction, noise level



Expertise Required

Understanding of HVAC acoustics.


Approximately 350 users worldwide.


HVAC designers, others interested in HVAC noise and acoustics.


Description of sound paths from HVAC equipment and systems through floors, ductwork, and walls.


Analysis results can be viewed on screen or printed either as a series of detailed tables or as plots on an NC or RC chart with TAP�s built-in graphing function.

Computer Platform

PC-compatible, 486 or higher, Windows 3.1 or higher, 8 MB RAM, 10 MB free hard disk space, VGA or higher resolution monitor (SGVA 256-color recommended).

Programming Language



Evaluating the total effect of sound in an enclosed space requires many complex mathematical equations. Solving those equations manually takes hours of precious design time and is prone to error. TAP streamlines this analysis task with easy-to-use menus and dialog boxes that help the user create pictorial diagrams of sound paths. As path elements are added, moved or deleted, TAP dynamically recalculates the resulting sound power levels; and when multiple paths are involved, TAP not only determines the overall sound level at the receiver, but also how much of that sound each path contributes.


Requires detailed information on sound paths.



Trane Company


3600 Pammel Creek Road
Building 17-1
La Crosse, Wisconsin 54601-7599
United States


(608) 787-3926


(608) 787-3005




The cost for Trane Acoustics Program (TAP) is $495 for a standard single license and $742.50 for a site/LAN license. Call the Support Center to receive special pricing for educational purposes or current promotional discounts. A yearly renewal fee of 23% of the purchase price entitles the customer to unlimited free phone support, as well as automatic updates and documentation. All Trane C.D.S. software programs have an unconditional 30-day money-back guarantee. "Patches" are also available for download from our web site, listed above. We offer on-site training at our headquarters in La Crosse, WI, as well as regional training at sites throughout the U.S. or at your office if you prefer. Contact the C.D.S. Support Center for more information. The C.D.S. department's Support Center is staffed by experienced HVAC engineers and specialists. Support Center hours are 8:00 AM-5:30 PM CT Monday-Thursday, and 8:00 AM-5:00 PM CT Friday.