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mi_dach
Joined: Dec 17, 2005 Posts: 133 Location: Sweden
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Posted: Thu Jun 01, 2006 3:07 pm Post subject:
automatic crackle box thing Subject description: looking for suggestions |
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Hey,
I like the erratic, unpredictable swoopy sounds of the cracklebox. However, I'm wondering if there is a circuit that can produce something along the same lines, but automatically, without requiring human intervention... I could maybe get a pic chip to control the heavy metal xors circuit. Simpler is better though.
anyone got any suggestions? |
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piedwagtail
Joined: Apr 15, 2006 Posts: 297 Location: shoreditch
Audio files: 3
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mi_dach
Joined: Dec 17, 2005 Posts: 133 Location: Sweden
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Posted: Fri Jun 02, 2006 6:52 am Post subject:
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You may be more right than you think
Thanks for the links, I checked them out but they all seem quite complicated. I am trying to get a very simple circuit to do this. I think perhaps the easiest is a pic chip with some PWM output, and varying the frequency/duty cycle/on and off patterns of each output according to some preprogrammed sequences. Hopefully this will sound random enough for what I want. |
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zipzap
Joined: Nov 22, 2005 Posts: 559 Location: germany
Audio files: 24
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Posted: Fri Jun 02, 2006 12:01 pm Post subject:
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If you want to go for something like the exors some random noise s&h thing controlling one osc might be enough. Add another lfo and things get even better. maybe replace one osc by some kind of random gate generator. Place a ldr somewhere. Once powerd this should never make the same sound twice (and i hope make more than one sound...). |
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bugbrand
Joined: Nov 27, 2005 Posts: 846 Location: Bristol, UK
Audio files: 1
G2 patch files: 1
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Posted: Sat Jun 03, 2006 1:24 am Post subject:
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YoYo
Hows about CMOS switches to switch between a few different cap & resistor values in the XOR metal ringmod circuit.?. That should work out pretty ok!
Digi chips are ace for this -- you can use another 40106 (or similar) to generate a bunch of different (ie quasi random) trigger signals for the switches.
Or I was thinking of the digital noise gens that are recursive, but so long that you don't hear the repeat -- if you tweak you could def. get shorter quasi-random but vaguely repeating signals.
The current Weevils (very much along the same lines as the heavymetal xor stuff) are quite like crackleboxes in their behaviour.!. I think we need to get into genetics actually and clone little people that can stand on touchplates - maybe breakdancing? ((this sounds like a drunken idea, but actually its 9 in the morning..)) _________________ http://www.bugbrand.co.uk
http://www.bugbrand.blogspot.com |
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mi_dach
Joined: Dec 17, 2005 Posts: 133 Location: Sweden
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Posted: Sat Jun 03, 2006 2:35 am Post subject:
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thanks guys for the suggestions, I'm starting some experiments now I'll let ya know how it goes |
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