For anyone wishing to acoustically treat a room, you need to know which frequencies are being modified by the room and Modal Resonance Calculator v2 can tell you! Version 2 features full modal analysis calculations (Axial, Tangential and Oblique) and can be used to calculate modal resonance frequencies which will change your perception of audio in a room of a given size. The modal spacing calculator also can be used to calculate the depth of a tuned resonant panel absorber for any given frequency - the next step in making the acoustic performance of any room more stable.
In addition, the software also calculates:
Room Surface Area
Mean Free Path Length