My digi-Noise

synthmonger · Last edited by synthmonger on Tue Jan 20, 2009 12:30 pm; edited 1 time in total

In this audio clip I sweep the rate pot from CCW to CW and back again on each of 5 outputs that I liked best.

No shift registers are used in the schematic. Just one of each 40106, 4520, 4030, and 4066.

stolenfat · Posted: Sat Jan 17, 2009 7:39 pm Post subject:

sounds awesome!
are there schematics to peep? i'd love to see them!

vtl5c3 · Posted: Sun Jan 18, 2009 9:18 am Post subject:

Sounds good! Did you use the 40106 as the basis of the noise generator?

synthmonger · Posted: Sun Jan 18, 2009 1:35 pm Post subject:

Sorta. I use my 40106 vco with the switches controlling four 40106 oscillators simultaneously that are xor'd and then sent through half of a 4520 whose outputs are mixed together and sent to the clock input on the other have of the 4520.

One thing I found great with frequency dividers is it's inability to handle chords for guitars and whatever. I figured if you sent it multiple oscillators tuned differently that all share the same frequency sweep you could make a neato noise source, which is what I think I accomplished.

Only part of the attachment was used. More to come later...still a bit hungerover

VCO_switch.png

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synthmonger · Posted: Mon Jan 19, 2009 8:19 am Post subject:

Here's a couple more audio examples! Very Happy

In each example I cycle through each of the five favored outputs, main clock, /2, /4, /8, and /16.

They're all sent through my VCA which is being triggered by an LFO that is also clocking my Stepped Pattern Generator, whose mix output is CV'ing the digi-noise.

Each of the examples have different frequency ranges, speed, and decays.