Hi! It takes me some time to figure this thing working out, but after it was done, is very easy to use, since you simply load the preset.
I created a workspace that use the "Audio2midi" modules of Usine and a bunch of free plugins with them. The free plugins are Kjaerhus compressor, GSnap and GTuner (both them help tune your audio input, so is more easy for the "Audio2midi" modules recognize the note you are playing) and "Soma enveloper" a powerfull plugin that converts the amplitude of an audio source to Midi CC.
So, after you save all this routing, you load Usine as a VST fx in an audio Track of your host, route the midi output of this track to Kontakt, and you are done.
What i can do with this:
Convert mono audio 2 midi notes (i believe that the accuracy, using a recorder at least, is ~90%. If i sing the recognition is worst, because im not a good singer, but also because recorder tones are more "pure" with no so high armonic content like other instruments)
Convert amplitude of the audio signal to any midi CC. So, if you assigned it to the ModWheel, and you are using GPO, while you record the notes, you can record the intesity of that notes. You only need to care to press the pedal for legato/non legato.
Firstly, i make the experiment just by curiosity, but it`s working so well, that i will use it for daily work.
If you want to see how the "Usine" workspace i made looks, here are two links:
(i put the images as external links since they are a little big, and mess the forum)
http://stashbox.org/499038/Workspace1.jpg
http://stashbox.org/499041/Workspace2.jpg