Hi there,

I'm currently designing a subpatch for my project that will adjust the levels of envelopes based on their position of played notes on the keyboard- this will customise which keys affect levels, and in what way.
I'm using linear curves for this in [array], and one of the functions I was going to create would be to apply different slopes to both sides of the graph (E.g. going up to the middle of the graph, then going down.) at the moment, the curves are linear, and only go either up or down. Does anyone know the expression to define this? I'm including a copy of my patch with this message, feel free to play around with it and tweak it. The expression i need to modify is
[expr $f2 + 2 * $f1].

Thanks!!!

-James

http://www.pdpatchrepo.info/hurleur/level_scaling_patch.pd

bump

Dude, please stop bumping all your posts. This isn't a high-traffic forum, and there are only a few of us who come here every day. So it's not at all uncommon for you to go a day or two without a response simply because someone who knows how to help just hasn't seen it ye. Be patient, and at least givte it a few days before you bump if you really need to.

If you need different slopes for different MIDI ranges, simply uses [moses] to split the ranges, scale as needed, and run them through different expressions. You're not really looking to use one single expression here, you want one for each range since they are using different curves.

The expression you gave is a simple linear y = mx + b expression. If you want to work with curves, you'll need to throw some exponents in there. I often start with something like this:

[expr pow($f1, $f2)]

where $f1 is your input range scaled to 0-1 and $f2 is the curve parameter.

Sorry about that >.< I've got some deadlines so I apologise if I'm getting on your nerves, however I'm nearly finished now so I'll stop posting as much Thanks for your help, I'll let you know how it goes!