Carlos Sanchiavedraz wrote:
2009/10/12 david <gnome(a)hawaii.rr.com <mailto:gnome@hawaii.rr.com>>
Carlos Sanchiavedraz wrote:
Hi David,
2009/10/12 david <gnome(a)hawaii.rr.com
<mailto:gnome@hawaii.rr.com> <mailto:gnome@hawaii.rr.com
<mailto:gnome@hawaii.rr.com>>>
nescivi wrote:
> On Sunday 11 October 2009 13:36:55 Carlos Sanchiavedraz
wrote:
> Hi
dear folks.
>
[...]
I had a thought re keyboards (particularly the keys
themselves). Why
can't the surface of a key be a touchpad-like surface
sensitive to
pressure and even movement? So, for example, you could play a
violin
note, hold it, and use finger pressure and movement on the
key surface
itself to do vibrato the way a violinist would? That would go
a long
ways toward bringing human expressiveness back into playing
the sounds
of such expressive instruments as strings and woodwinds.
Yes, that would be great. But AFAIK the circuit inside keyboards
just cares about keypresses; nothing about pressure or velocity,
although maybe something could be hacked given the present
keyswitches, electrical contacts (or I think capacitors on old
ones), scan codes and other stuff.
Do you know any work about that?
Sorry, I should have mentioned that I was talking about musical
keyboards, not computer keyboards ... although I suppose you that if
you ganged some Trackpoints (IBM's little eraser pointer tool)
together, you could get take advantage of the Trackpoint's
directional abilities.
It was just an idea that I think would be great. Don't know if
anyone is working on anything even remotely like it...
Ok :).
Then, I'm not sure, but I think what you refer is called "aftertouch":
http://www.google.com/search?q=aftertouch+keyboard
Hmmm, hadn't run into that. I read the Wikipedia article about it. The
three forms of aftertouch they mention don't seem to include my idea of
directional movement while holding the key down.
But an array of Trackpoints might be interesting as a control input, too.
So you say something like to achieve little variations of notes
("vibrato"
alike) depending on the key/finger movement, isn't it? I think there is
something like that in really expensive keyboards/controllers, but not sure.
--
Carlos "sanchiavedraz"
* Musix GNU+Linux