ideal room size


Does anyone remember what the formula is for the ideal room size? Thanks!
seadogs1
This is the room dimension ratio (from memory), from Harley's book.

1.0(Height) x (1.9)Length x (1.4)Width
This is a complicated issue, there being no one "right" size. See F. Alton Everest's Master Handbook of Acoustics, 4th edition, or his Sound Studio Construction on a Budget.
Several versions of the "ideal" are given in one or the other of these books. Not just proportions count: the bigger the room, the better its resonant modes will be spaced, if the proportions are good. Reading Everest will teach you how to analyze a room yourself, and see how good it is and where its problems lie.