Sabine and Reverberation Time
Archive site for Autodesk Ecotect Analysis educational resources, notes and tutorials
This Ecotect tutorial demonstrates step by step how to display and interpret information contained on a Statistical Reverberation Time graph.
You will need about 20 minutes to complete this tutorial.
Successfully completing this tutorial fulfills one of the practical skills required for completing Level 1 of the Acoustic Design training module.
To complete this tutorial, you will need the AcousticRays.eco example file. This is contained in the 'Examples' folder located in the folder where Ecotect is installed on your computer.
When a source begins generating sound within a room, the sound intensity measured at a particular point will increase suddenly with the arrival of the direct sound and will continue to increase in a series of small increments as indirect reflections arrive and act to contribute to the total sound level. Eventually an equilibrium is reached where the sound energy absorbed by the room surfaces is equal to the energy being radiated by the source. This equilibrium is usually found quite quickly because the absorption of most building materials is proportional to sound intensity. Thus, as sound levels increase, so too does their absorption.
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