AFMG Network Forum

logandodson · Member

I and my coworker regularly use the AURA Pro module to calculate reflectograms within EASE models. Today we noticed that an advanced setting in the AURA Pro module (Max Diameter after 1 second) was set to different values in our separate EASE installations, which produced widely different reverberation times through Schroeder Integration. Specifically, my max diameter was set to about 11 feet, and my coworker's to about 3 feet. My max diameter being larger, the reverberation times calculated by Schroeder integration were higher than my coworkers. My question is - what is the "correct" value to use? Should it be smaller to simulate the acoustical field around a listener seat? Should the value change based on the space you are simulating the acoustics of? Any insight into this would be appreciated. Thanks!

AFMG Frank Siegmann · Member

For homogeneous sound fields, the results for different maximum diameter values should converge with the number of particles.
So if you get different results under such conditions, you should try again with more particles.
Under special conditions with spatially varying reverberation, the results may differ.
To understand the behavior described in your project, we would need to take a look at it. To do so, you could send it to support@afmg.eu .