it isn't... when translating to midi .. it merely translates the audio pulse volume into midi.. (velocity)
you choose the notes...
(you can also use it for midi CCs or aftertouch/modwheel/pitch for that matter.)
you can build something in max that's frequency/volume dependent..
but that would be flimsy at best.. and not accurate at all..
anyways depends on the software..
also remember it's 1 contact mic per audio input...
and btw industrial piezo-electric components are about 1-3$ each..
looks interesting, but I think it would feel a bit limiting to only be able to play 1 MIDI note - even for percussion, as with the kontakt option shown, the percussion instruments usually use a few notes to provide the different tones/veocities etc
but if the components are that cheap, it makes me wonder if you could use a few and have the software work out where you are playing on the desk by how loud each one is or something and track pitch like that?
yep you could.. but like I said it would be far from accurate..
I think what's cool about it is how flexible it is.. you can attach it to any surface.. you can make the cables as long as you want (since "quality"/"fidelity" is not a factor)
so like I said.. if you're not utilizing all your audio inputs.. could be a nice addition...
4 contact mics= bd (which you can simply stomp on)/ snare/ hh
(you can use 1 piezo to determine if the hihat is open or close..sortof emulating a hh pedal)
plus...like I said.. you can get weird sounds ..