I noticed a post on the 9 pages of Wogglebug related info at the Electro-music site. Someone was wondering how I had done one of the demos and I realized I had never mentioned this technique. I was not withholding the information, I just forgot about it until I read the post. It was 8 years ago when I did the demo. Here is the tip: Woggle CV is only a generic label, at short settings of the Woggle Time pot, the decaying sinusoids at the Woggle CV output are in the audible range. At the shortest setting of the Woggle Time pot, and with other things right, the Woggle CV output will oscillate chaotically in the audio range. The output is from the state-machine phase detector in the 4046, so it moves in steps, not true sinusoids, but a lowpass filter will remove the stepping. To get the bass thumps in the demo, run the Woggle CV output to a lowpass filter to knock out the high frequency content and play with the Woggle Time control to affect the pitch of the "thumps". If someone could pass this over to the Electro-music forum, that would be great. Happy Woggling!
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A tip for Wogglebug users
2008-02-02 by Grant Richter
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