🚀 go-pugleaf

I'm looking at an interesting problem at present that I lack the 
expertise to do much more than wonder about. The basic problem is
this: How might I quickly, cheaply, and effectively take a snapshot
of an acoustic space [mono is all that's required here] and then 
convert that information into a map of energy distributed across the
audio spectra? The eventual endpoint of such a transfer would be to
map that information as MIDI data [I know, it seems like a hack, but
there are already a lot of pieces of gear out there [faders, outboard
signal processors, mixing boards, lighting, instruments] that *already*
take MIDI stuff. We're talking the second time in as many weeks that
people have asked me about doing this, and neither group has anything
that could be considered as resources.] and then route it to various
kinds of things for control. Some kind of Fourier thing would sure 
handle this, but I'm also wondering if there isn't either something
already out there OR some kind of "equalizer on a chip" thing that 
could be pressed into service for such a task. What better place to 
inquire on such a thing than among the solons of DSP?  In the 
interests of bandwidth, this should move to mail. Just think, your
advice could be the bit that alters forever the face of a production
of Shakespeare's "The Tempest"!

Thanks for your patience and advice.
--
What is poetry?:The medieval frieze, with frieze/Of Boy Scouts from Nagoya? 
The snow/That came when we wanted it to snow?/Beautiful images? Trying to 
avoid/Ideas, as in this poem? But we/Go back to them as to a wife, leaving
/The mistress we desire? Now they/Will have to believe it as we believe it.