[PD] Live Apectrum Analyzer

Thomas Mayer thomas at dergrossebruder.org
Thu Feb 1 20:40:45 CET 2007


thanks for all your suggestions, TAPESTREA looks great, but I'm just
intrigued by the patch of carmen. After playing around a while with some
objects, the following idea came into my mind:

Create a [pdp_xv] canvas with 800x640 pixels.
Use the values of [fft~] as right input for [pdp_gain] and multiply it
with a white rectangle of 10x10 pixels and put it in the right place
(bottom to top in column)
Goto next column and repeat (50 ms), so the pic will look like:

|<--- 64 values from fft~
80 values for time (=4 s)

So, for now, I'd ask for some specific objects:
How can I split lists of audio data, as [snapshot~] only outputs the
first value?
The 4.fft.examples folders from CVS is empty, and the help for fft~ is
not really helpful. Is there any help for tweaking [fft~] available,
e.g. setting window size (in frequency domain)?
Is there a pdp/pidip object that can put a picture in a desired position
on a pdp window?

"Prisons are needed only to provide the illusion that courts and police
are effective. They're a kind of job insurance."
(Leto II. in: Frank Herbert, God Emperor of Dune)

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