Hi

Thanks for the fast response to my previous question, now here's another, I've also looked this up and not had much luck even though it seems like a fairly obvious thing to do.

I'm wanting to use a MIDI input (0-127) to control a filter's cutoff frequency (and potentially other things like volume that our ears respond to in a logarithmic manner), and I'd like that control to be effected logarithmically as it is on most synthesisers etc. It's a bit hard to get my head around the process by which this would be done so I'm not really sure how to implement it.

Also is there an equivalent to Max's [zmap] object which is very useful in such situations where scaling a number is involved?

OK so I'm a relative n00b so apologies if this is a stupid question but I've spent the last hour or two searching the net and help files but to no avail.

My question is - how do I find out what externals I have installed and what they are?

I downloaded pd-extended which I thought came with lots of externals and I'm sure they're there, what I need is a list of what I actually have and what it does. The reason I'm asking is that I heard the ggee library has good externals for biquad design and I'd like to find out what these actually are, I'm sure they're on my computer somewhere and the Pd console does tell me it's loading the ggee lib when it starts up!

Thanks for your help, I'm just finding everything about Pd so complicated, not so much the use of the program itself but things like how to use libraries and so on, just seems so hard to find easy-to-understand info on anything especially for someone like me who's not especially up on their Unix command line type stuff...

Thanks for the help - I didn't think of using [mtof] as I wasn't using explicit note inputs, but it turns out it's fine for the purpose of scaling 0-127 values logarithmically