[Pd] Playing a bitmap
claudiusmaximus at goto10.org
Tue Jan 23 06:57:02 CET 2007
Chuckk Hubbard wrote:
> On 1/23/07, Claude Heiland-Allen <claudiusmaximus at goto10.org> wrote:
>> Chuckk Hubbard wrote:
>> > Has anyone done this with Pd? I thought I remembered something in
>> > GEM, but I can't find it anywhere. Just to have a cursor scroll left
>> > to right and assign the different values of pixels to different
>> > musical properties...
>> > -Chuckk
>> Like this?
> Yeah, I think so. How's it work?
> Thanks for sharing.
Not sure exactly, it's not my patch, but from the screenshot it looks
like it copies a scanline of greyscale pixels into an array, then
rescales the array exponentially into annother array (frequency<->pitch
conversion), then does an inverse fft and sends the resulting audio to
dac~; the partials of the output sound being determined by the
particular scanline of the image that was just copied to the array.
I think this technique is a form of "scanned synthesis", but I'm not an
expert on terminology. At least searching pd-list for that term shows
up some interesting results...
More information about the Pd-list