[PD] balancing loudness

[hard off]

ok, i'll try [limiter~]  ...that might work.

at the moment i am using [*~] ...but that requires manual adjustments.
 i'm looking for a more 'automatic' way so that i can get things
balanced on the fly, in a live setting.

is there anything that will detect the 'loudness' or 'density' of the
sound?  i have everything normalised already, but some things just
sound a lot louder than others.

it'll cost me dearly in cpu power, but what about using an ftt process ???