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Author Topic: filtering audio with a fractal resonator  (Read 434 times)
Description: early work in progress
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claude
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« on: November 24, 2016, 12:07:46 AM »

Sound (in this case simply white noise) goes in one corner, comes out the opposite corner. 10min ambient drone loop.

https://mathr.co.uk/misc/2016-11-22_graphgrow_audio_filter_3.ogv

FFT Filter coefficients are calculated on the GPU, written to a file, and used in Pure-data to process the sound, with a visualisation of the same fractal using Gem for Pd.

Source code here: https://code.mathr.co.uk/graphgrow/tree/HEAD:/c

Currently hard-coded one particular fractal shape controlled by a single parameter, eventually plan to support fully-connected graph-directed iterated function systems of similarities, with a graphical editor.
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cKleinhuis
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« Reply #1 on: November 24, 2016, 12:19:10 AM »

lol, sounds interesting, where is the (mp3) sound and the video cheesy

how to play ogg nowadayz? winamp?
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divide and conquer - iterate and rule - chaos is No random!
claude
Fractal Bachius
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« Reply #2 on: November 24, 2016, 12:26:52 AM »

lol, sounds interesting, where is the (mp3) sound and the video cheesy

how to play ogg nowadayz? winamp?

The .ogv is the video with sound - plays right in the browser if you click the link (at least it does so in firefox on Linux).  Otherwise VLC or similar should handle it fine...
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cKleinhuis
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« Reply #3 on: November 24, 2016, 01:07:38 AM »

vlc did the job with video, thx, dont really understand what is going on but for white noise as input it is not sounding as white noise wink
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divide and conquer - iterate and rule - chaos is No random!
cKleinhuis
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« Reply #4 on: November 24, 2016, 01:13:29 AM »

woot, it gets on my ears in the middle, very high frequencies very disturbing .... had to quit after 5 minutes
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divide and conquer - iterate and rule - chaos is No random!
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