Improved Random Bit Shift Sequencer
A new version of the most popular wonkystuff module! The random bit-shift sequencer (rbss) — is a re-imagining of the well-established Turing Machine from Eurorack. It's a semi-predictable source of randomness in a single-width AEModular module.
The main changes from the original rbss are:
- CV controllable clock rate (all of the three controls: rate, length and chance are now voltage-controllable);
- No 'audio' output (the same effect can be had by passing the CV output through a high-pass filter)
- 8 'bit' outputs, exposing the individual bits which go to make the CV, allowing for repetetive, random, related triggers — really good fun with the wonkystuff µDrum modules such as the bd55, rs55, hh110, etc.
Controls
- length - this is the number of steps that will be present in the sequence, from 1 to 16.
- chance - this specifies the probability that the next step in the sequence will change voltage, from 0 (never) to 1 (always).
- rate - This changes the frequency of the clock pulse appearing at the clk out pin. (In order to trigger the rbss, the clk out must be connected to the clk in).
Connectivity
Mostly the same as the rbss.
Inputs
- clk in - Every time there is a rising edge on the voltage in this input, the sequence shifts one step. This can be driven up to audio rates for some interesting noises!
- len cv - The control voltage on this input is added to the control voltage from the front panel length control (so if the knob is fully clockwise, this voltage will have no effect)
- chance cv - The control voltage on this input is added to the control voltage from the front panel chance control (so if the knob is fully clockwise, this voltage will have no effect)
- rate cv - The control voltage on this input is added to the control voltage from the front panel rate control (so if the knob is fully clockwise, this voltage will have no effect)
Outputs
- bus clk (left side): clock signal from the bus, either from the master module, or mb/1.
- cv out (x2): a control voltage representing the current bit-shifted binary pattern;
- clk out (x2): a simple square clock signal
- bits 0-7: Exposes the internal state of the bits used to create the CV, allowing for repetitive, random, related triggers — really good fun with the wonkystuff μDrum modules (this basically means that the same bit pattern is replicated across each bit-output with a single clock-pulse delay).
Videos
rbss/2 is used in this demo of drum sounds, showing use of the bit outputs:
https://wonkystuff.co.uk/rbss-2.html
