you could set the audio input to control the opacity of the patch
instead (connect the audio in patch to a math patch, then an HSL
color patch). If you multiplied the signal by 5 and then subtracted
2 you can get a result that's fairly punchy without being flickery.
Mess around with numbers and see what works for you. multiplying it
by a really high number like 10,000 will have the same effect as
hooking the audio in straight to the "enable" section of the shape
patches. If you subtract half of that number from the math patch you
will only see the shapes when the audio is at 50% or above. subtract
3/4s that number and then you will see the shapes when the audio is
at 25% or above, and so on.
The issue behind the flickering is that the enable input looks for a
boolean (true/false signal), but it looks to the closest thing if it
can't find that (anything above zero = true, zero and below= false).
So a audio input reading of .001 will trigger it. in addition to
using alpha/opacity like in the solution above (my preferred choice,
since I like the smoothness and variability it offers), you can just
subtract a number from the audio input data using the math patch, and
create a "threshold" like in the first solution.
sorry if my instruction-giving is a bit obsessive :(
Andrew
On Oct 23, 2007, at 3:51 PM, Andrew Larking wrote:
Hi all.
So many questions!
I would like to have a range of pre-set shapes, which I would like
to turn on and off via audio input. Imagine an array of squares
filling the screen, all invisible (not enabled?). When certain
input levels are reached, they turn on. I thought this would be
simple by connecting audio in to the enable, via a range, but
whatever I set it flickers. Any ideas?
A.
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