Ian Fritz/Elby Designs ChaQuO 1/2: explained
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- Опубліковано 30 чер 2020
- This movie takes a deep dive into how the ChaQuO - a quadrature oscillator driving a “double “well” second order chaos circuit - works under the hood. I deal with the design on both a building block and actual schematic level, meaning many of the concepts and explanations can also be applied to software emulations of chaotic modulators. What we learn in the circuit-level explanation is then applied to the controls on the actual module, driving just a single synth parameter - filter cutoff - to make it easy to hear as well as see the results.
yes! you keep on doing these amazing walkthroughs on classic amazing modules!
Excellent video. I just added the Chaos algo on my Disting last night. Very helpful.
Very interesting circuit.
A very insightful video, demystifying the chaos... how does it fare tracking an audio-rate oscillator, can it run in to the KHz and act like a waveshaper?
The various Ian Fritz chaos modules do go into the low kHz range. However, there is no pitch CV input on the ChaQuO; the other modules (Chaotica, Hypster, etc.) have CV for pitch but they do not track 1v/octave. However-ever, ChaQuO does have an external input for the chaos section, so you can drive it with your own VCO, and yes then it will act as a chaotic "waveshaper" for that signal.
Nice, would have been interested in the module if it has only the left section, I don't really need another oscillator.
It needs an oscillator internally to drive its engine, so they decided to expose that to the outside world in case you could use it. Note that the chaotic outputs are loosely connected to the internal oscillator, so that gives you some additional related-but-different modulation sources. But it would have been even better if that oscillator we voltage-controlled; that's where patching in your own oscillator is useful.
Worth bearing in mind that a quadrature oscillator has its own specific uses beyond a standard oscillator
Really cool, looking into putting one of these together. Have you happened to find a version of the schematic that includes cv inputs?
I have not. There are others Ian Fritz has designed with CV controls - Chaotica and Hypster, for example - but they are different beasts.
only easy way to add CV would be to add matched vactrols for the frequency controls
I love quadrature LFOs