I had misinterpreted someone else's post and only briefly used the demo (enough to know it sounds great!
). I didn't understand that the two filters only tune the side chain input. I was thinking he had filters to tune the entire compression band (thus enabling a kind of "one band multi-band" compressor).I just wanted to make sure that if anyone read my spew and thought the GUP-1 could do something beyond what it can, that I corrected my misstatement.
BTW, I think this is an awesome idea and haven't seen anyone implement it yet, which is surprising, since it seems like it would be bone simple:
Just put a bandpass filter in front of a wet/dry parallel signal path, then you could slap this in front of any effect, but it would be particularly suited to compression. Everything passed would go to wet, anything filtered to dry, then make the filter tunable. Voila, instant tunable compressor with a band that could be narrowed, widened, and moved around, thus allowing more precise compression of a given track. You could also build a scalable multiband compressor by stringing several of these together---as many as you wanted and you had enough CPU for.
The advantages over a multiband comp would be:
Less complex processing in the basic comp. If you wanted it simple, you could keep it simple.
Scalable multi-band---only as much processing and programming as you need at a given time.
Easy to modify an existing compressor (or any other effect) without totally redesigning it.
What do you guys think of my idea?
Dave
. The $ exchange rate usually isn't good for NZ, but at the moment the Kiwi is doing well, so it's a great time to buy US$ plugins - and no surcharge too 
.