[PD] bcr2000 and midi-feedback
Jason Plumb
jason at noisybox.net
Tue Jul 22 16:52:31 CEST 2008
> The problem is that pd sends it's send-symbol, even if the fader is
> moved as a result of the receive-symbol. This means that the bcr get's
> the value right back, with a small delay, which causes the whole to be
> very reluctent to accept movements from the bcr.
I had to solve a similar problem in a few patches with my bcr2000, so I
wrote a few small "helper" abstractions. I wanted to be able to move
the controller and have it update a UI element in pd, and vice versa --
and I needed them to be in sync all the time. You can get these two
abstractions here:
http://noisybox.net/computers/pd/ctrl_sync.pd
http://noisybox.net/computers/pd/nrpn_sync.pd
They basically encapsulate the logic around spigot as Luigi suggested.
Input the signal from a UI element (slider/ui/etc) into the top and feed
back the control output back to the UI element. They're simple, so you
should hopefully be able to extend them easily. They're a little stupid
in that they assume a control range with 0 at the low end...but they
helped clean up some patches and keep things in sync.
-jason
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