David
The wonder of CS-80 , what I consider the sum of its magic consists in a deep relationship between the mechanical hardware and the sound engine.
You're right thinking about how useful the user interface of the CSs are...they were designed to be handy and easy , for example the choice of sliders and levers instead of knobs is absolutely genius to me: as all of you have experienced with your instruments , to use sliders and levers during performance is way more comfortable because you can move more sliders with one hand ( one for all_ you can move down the MOD and DEPTH of ringmodulator with two different fingers while playing ), while you ∗have∗ to use your inch and index closing your hand therefore preventing yourself to use the rest of it...
About the keyboard it is another fundament of the CS magic: the 45cm long key levers ( descending directly from the piano mechanics ) combined with good and sensitive sensors contribute to a superior sensitivity and the control is right under your hands, sorry but no A80 in the world can compete with the CS80 keyboard. It should be useful to know what material the key levers are made of in order to be able to produce them again. It could have be useful to have some blueprints of the keyboard's embedding, being then able to build that kind of mechanics again.
About the channel AT I don't think that a mod can be done , once I had an idea about it or, better, a dream: if anyone could be able to build a sensor around a sensitive strip which could be virtually "splitted" with help of a processor by the number of keys in the keyboard, being then able to recognize the velocity and aftertouch variations, and to code them as separate values, we could reach an important decrease with the production costs ( one sensor instead of 61 ) and at the same time being able to manage the velocity and poly aftertouch with the controllers at a much more affordable price!
Cheerz
M
----- Original Message -----
From: David Rogoff
To: yamahacs80@yahoogroups.com
Sent: Wednesday, December 21, 2005 7:20 PM
Subject: [yamahacs80] New Poly-aftertouch keyboard
Hi all.
Crow is doing great work to build new CS-80 voice cards with
off-the-shelf parts. But, as we all know, the sound engine is only
half the point of the CS-80. It doesn't look like anyone (Roland,
Fatar, M-audio, CME) is going to release a poly-aftertouch MIDI
keyboard anytime soon. Therefore, we have to come up with one.
I'm hoping that someone can tell me any details about the
channel-aftertouch sensors used in current controllers. I'm hoping
there's a way to modify the existing sensor (with lots of added
circuitry) to turn it into poly-aftertouch. Anybody know? Any
pointers? Does anyone have specs on the raw Fatar keyboards that the
other companies use? Who else makes the raw/OEM keyboards that have
channel aftertouch?
David
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