When you say you don't need large signals due to MLS approach what SPL is typically used for large spaces?
I don't have access to an omni polar speaker, however could I approximate one by say using four Genelecs each driven off a separate output of my sound card - three facing outward and one facing upward? Are there any potential phase issues with this approach?
Apart from RT I am interested in measuring are EDT, C, & D. In general is the corner of the room also the best place for measuring these parameters?
If I only use one speaker - how much inaccuracy will I be introducing i.e. do I really need to worry about it?
Also - do you know why I do not see Clarity and Definition parameters reported in the Room Acoustics grid even though they are checked in the Room Acoustics>Parameter Settings dialogue?