XAOC ROSTOCK digital shift register (video use-case)

XAOC ROSTOCK Manual

Has any one had a go with this in a video rig? Pertinent sentence for potential video use-case here:

Rostock may process data sequences representing rhythms, control voltages, audio-rate signals, and even video signals because the bits can change at extreme rates (up to 2MHz).

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I have not, myself, but am interested to hear if others do.

One thing I’ve seen mentioned is the fact that Rostock is an input module, so it would need another Leibniz module as an out. I’ve seen Drezno and Poczdam mentioned as posible pairs, with the second version of Drezno wotrh it due to its higher clock speed than the first version.

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I have a Drezno mk1 and Rostock. I did some testing and put the notes on ModWiggler here.

I seems that there is some degree of control over the horizontal position by adjusting the delay setting.

I have preordered a Drezno mk2 but I don’t have a clue when they will be released. I will do another round of testing and post back once I receive it.

I’m thinking for my style that I would use the mangled video as either the foreground or key in a mix with the original video.

Any other suggestions for testing?

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Oh right! I remember your post now. Thanks for doing this. My comprehension of why the things happen the way they are is not there, but it’s interesting to see that they do have an effect.

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Hi, this is my first post on the forum. My name is Edward and I have an active case of gear acquisition syndrome. Nice to meet you all.

So, I’m wondering if anyone got to do more testing with Xoac modules?

The Berlin module seems particularly interesting. This is a numeric oscillator that creates ramps well above audio range, and has a hard sync input.

Question: Has anyone successfully used an oscillator hard sync to keep it frame sync’d in some way, maybe by giving it and H-sync? To be useful I imagine the wave needs to change a meaningful amount in a single scanline… which brings me to the next part.

The ramp is created from an 8 bit counter. To change the pitch the clock frequency changes (as opposed to having a set clock frequency and a value corresponding to pitch gets added to a phase accumulator). The cool thing about the variable clock frequency method is no aliasing, and the manual says the bit clock can run well into the MHz range. But at best that gives us a horizontal ramp. Whoopie…

The thing that makes this maybe-experiment-worthy is changing the waveform into all sorts of intricate scribbly waves by manipulating the counter with other Leibniz modules. Jena comes to mind - if you look at the waveform chart and imagine having those instead of a standard ramp - :face_with_spiral_eyes:

Or maybe none of that would work. Idk. I’m tempted to find out - but thought I’d check if anyone has tried.

Cheers
Edward