I started using PureData a few month ago. Mostly doing some live projection stuff from pinhole pictures I have made and a webcam I use for masking, like in BW printing. I need some controllers to keep my hands off the laptop I use.
I'm running the latest Pd extended version with the recently updated GEM extra under Windows Vista. It's a tablet PC, Lenovo X61t without the (finger) touchscreen, just stylus interaction.
I have a cheap Behringer BCR2000 that works fine after making a usable one from two half dead ones.
There is no lag between turning a button on the controller and the effect in the patch.
I just bought a Korg NanoPad controller as well.
I tried the native and Korg Midi drivers. I have a 2 second lageven in the Midi test patch included in Pd with or without the other controller connected. I was looking forward to it's XY pad... Too bad... it's totally unusable.
Just to make sure I tried it in Ableton Live which is probably one of the pieces of software for which most controller drivers are optimized. It works perfectly. So I guess there is some trouble between pd and the drivers.
Has anyone here any experience from such hardware?