In this project, I used modeling to investigate the reverberation characteristics of a church sanctuary. One of the keys to reconciling the reverberation so necessary for singing worship and speech clarity is for the reverberation to be clean, without flutter echoes.

Listen to the two sound files. The first has a lot of "grit" at the end (flutter echo). This results from a geometry that encourages long repeated sound reflections. In the second you will hear the cleaner, well-behaved reverberation that results from a more diffuse sound field.

The model exagerates the flutter somewhat, so if you can achieve clean reverberation within the model, you can be reasonably sure that the resulting room will have clean reverberation.

The little charts illustrate the different reflection patterns in the model room. The one on the left shows a lot of strong descrete late reflections. The diffuse sound field has a clean slope.

Click on the "PLAY" button to hear auralizations.
simple geometry (flutter)	diffuse surfaces (clean reverberation)
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