The Reverberation Calculator
This page will calculate reverb time for the home theate room you input here. The results show the inter-relationship between reverberation time and room finishes. This calculator is provided as an educational tool to demonstrate this relationship, and any use made of the information here is done at the sole risk of the user. (Let's face it, if it were really this easy would we be giving the information away for free?) Work your way down the page, inputting data where indicated, then push the button to calculate the results. Caveat
Input the room dimensions and the additional acoustical finishes in this section. This calculator is based on the Sabine reverberation equation, which makes certain assumptions about the distribution of acoustical treatment or absorptive surfaces. This has been done to keep this a fairly simple calculator. Difficult acoustic spaces will require more detailed reverberation calculations to ensure an accurate prediction of acoustical and sound system performance. The absorption values for the materials shown here are also based on a specific example of each type, and for a specific mounting method, and cannot be generalized across all materials of this type. Room shape will also affect the sound reproduction, as focusing surfaces and late reflections will dramatically degrade room acoustics, as will exterior or interior noise sources. It would be a very bad idea to stretch these assumptions to cover a specific application of your own, as large errors would be possible. Problems with many variables, such as predicted acoustical performance, cannot be generalized effectively. (Ok class, first of all, let's assume spherical cows...")
This is the reverb time you would expect to see in an unfurnished room with gypsum wallboard walls and ceilings, a concrete floor plus the carpet, ceiling tile, acoustical treatment and audience added. If the basic room materials are different than described, the resulting acoustical characteristics will be very different than predicted here.
Mc Squared System Design Group, Inc
323 - 901 West 3rd Street, North Vancouver, BC. V7P 3P9 Ph 604-986-8181