First thank you for this instrument made of free modules. Many many things to investigate! i must say i never saw such a strange instrument. you can turn knobs hours by hours and the output will be strange. i think that this is very interesting / useful for background noises / pads.
is there any good tutorial how it works? or how i play with it to create a sound i want.
Great work!!
Thanks.
It is an attempt to emulate a legendary hardware instrument of Rob Hordijk. He is also the creator/inventor of the Rungler circuit and the Benjolin. There is no official manual for the Blippoo Box -it is ment to be a experimental/improvisational instrument. So… it is controllable up to a certain point. You can find some useful info on the Benjolin on youtube though. It is kind of similar, but the Blippoo Box is even more potentially chaotic -to some degree even hyperchaotic (multiple chaotic systems crossmodulating eachother). Below I will write as clear as I can (and from what I know) it’s concept and how it functions:
The Blippoo Box is in its core a complex dual oscillator from which all kinds of cv is being generated. In the Blippoo Box these are 2 rungler circuits, a pulse generator with a comparator and a sample and hold circuit with different data input options. The rungler circuit is an elegant circuit which creates stepped voltages depending on the ratio between the two oscillators. Because of the feedback path of these signals back into both oscillators, you can move from a complex oscillator into a highly chaotic/noise circuit and back. The chaotic network is always in search for a stable state -it wants balance and will get there fast or almost never, depending of the initial state it is in and came from. If you leave it to a certain setting and don’t change the knobs, you will start hearing its search for patterns and its alternations.
All these signals are also connected to a dual or twinpeak filter, which acts as a kind of translator of all the generated signals: the pulses from the compator go into the input if the filter and “ping” them. The rungler cv’s and the s&h cv can modulate the frequency of the two resonant peaks. The filter can smooth out some of the harsh chaos with its sine resonance.
All the connections are prewired and have dedicated knobs in the controller section. You can learn its behaviour by starting of with very little to no modulation and slowly build up when you are more confident. But it is a chaotic core that can and will surprise you 
There is a modest patchbay for extra connections. You could filter an external sound with the rungler signals for instance.
In my emulation there are three big changes/additions towards the original Blippoo Box:
Also -because of all the slight tolerances of analog components, noise in analog circuits etc, no Blippoo Box acts as predictable as the theory. This adds to its character and aliveness. I tried to find different subtle ways of implenting these fluctuations, by using different tolerances for each connection and very tiny and slow dc offsets into the patch. These output is dc coupled, so it won’t affect the audio signals. But they do actually create a character and aliveness of its behaviour.
Thanks for reading up to here!
There is also a small item of Hainbach on youtube here
I don’t pretend to understand it, but it sure is fun to twist the knobs and make krell noises.
hello again, is it intentional that the stereo knob in patchmaster is not mapped? is it reserved?
It should be mapped to the cv amount knob of the Fade module in the Output/intern EoC section. There is a label with “Pan” on it.
Edit: ah, I see it is mapped in the second slot of patchmaster! The first slot is reserved for an external midi controller. The stereo knob, Q and S&H Mode knobs are also not part of the randomize section. Maybe this is where some confusion comes from.
thank you. will check it tonight.