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Linear feedback shift register explained
Linear feedback shift register explained













linear feedback shift register explained

People might know what an analog shift register (ASR) is, like the Synth Tech E102 or one mode of the Intellijel Shifty. Forgive me for repeating some of what others here have already said, but I think there are people who are still confused when it comes to the term. And the output is based on only three of those bits.Īs mdoudoroff pointed out, "shift register" is a somewhat confusing term in the modular synth world.

linear feedback shift register explained

Rungler also shifts bits, but in a smaller register (maybe 5-8 bits?), and instead of using probability, it uses a second incoming value to determine whether the low bit is set after the shift. The value you get is then based on 8 of these 16 bits. The bit that would have been rolled out of existence is either put back at the beginning, or maybe flipped, depending on the probability. The original Turing Machine has a 16-bit register (actually, two 8-bit register chips) and on each clock, the whole register is shifted one position. Turing Machine and Rungler shift bits rather than entire values. As a data structure, it could appropriately be called a "ring buffer." In the first group of shift registers (Shifty, etc.), entire values are moved. The difference is in how much data is being shifted. How does that notion relate to to notion of shift register at play in the Turing Machine, and in the Rungler?

linear feedback shift register explained

That usage of a shift register makes a lot of sense to me. Pointed wrote:I have used Telephone Game and Quantimator and Shifty for moving pitch CVs between various outputs. Well the design of Permutation is perfect for this. Mdoudoroff wrote:This thread is a touch off-kilter because, in contrast to the title, what the OP seems to be inquiring about is not so much a shift register as a random looping sequencer. You can build a discipline around that, but you could accomplish much the same with any basic step sequencer by twisting a knob once in a while “at random”. The ability to throttle the introduction of random variation into a pattern is still a pretty limited control, and you can only “go forward”. Setting aside semi-random rhythms, I still feel that the underlying concept of these sorts of modules is intriguing, but in practice, less useful than I hoped. For similarly-derived rhythms to the TM/Pulses combo, I would expect Grayscale’s Permutation to be similar. Many of these modules you have to clock in the first place, so they actually tend to be pretty regimental. Regarding OP’s interest in “drunk clocks”, I did find the Pulses expander for the Turing Machine to produce nice rhythms, but I wouldn’t characterize them as “drunk”. I’ve owned a few of these random looping sequencers-Turing Machines I & II, Noisering, O&C and Richter Wogglebug-and I still have TM2 and O&C racked. This thread is a touch off-kilter because, in contrast to the title, what the OP seems to be inquiring about is not so much a shift register as a random looping sequencer.















Linear feedback shift register explained