Acoustic Calculation Tools

Acoustic Calculation Tools by Chris Whealy

Background

In Nov 2002, I got involved in the construction of a new audio control room at my church. In order to get the best results from this room, I started studying the subject of room acoustics and acoustic prediction. These spreadsheets, and their periodic updates, are the result of my ongoing studies.

Available tools

I have written the following tools as Excel spreadsheets using Microsoft's Office 2002. These files have additionally been saved in Office 97 and Excel 95 formats.

Control Room Calculator	Calculates the basic acoustic properties of a rectilinear control room
Porous Absorber Calculator	Calculates the absorption curve of various porous absorbers including slotted and perforated membrane and Helmholtz absorbers
Speech Reinforcement Calculator	Calculates the potential acoustic gain (PAG) and needed acoustic gain (NAG) of a sound reinforcement system.

Caveat

These prediction spreadsheets are used on an "as is" basis.

The author has taken every reasonable step to ensure the accuracy and reliability of the predictions made by these tools

Anyone downloading and using these tools does so with the full knowledge and understanding that acoustic prediction tools may not produce values suitable for use in the user's situation.

The user of these tools takes full responsibility for any consequences arising from their use.

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