rbss? What?

It seems that we should have supplied some instructions/hints to go with the rbss, so here are some hints and tips!

Principles

The best place to read about how the rbss works is by reading Tom Whitwell’s description of the original Turing Machine. The only difference is that the rbss is implemented in software and the 8/16 step switch is replaced by the length control.

Getting Started

To start with, patch clk out to clk in, set the rate control to around the middle position — the LED should now start flashing. Yes? Great!

Now set the length control to its maximum, and the chance control to the middle. Now we’re all set to do something random.

Connect cv out to the cv input of an oscillator and the output of the oscillator to something you can hear. Hopefully at this point you will hear the pitch of the oscillator randomly fluctuating.

Now change the chance control to its minimum position — this will mean that the random sequence stops changing (you might be able to hear the repeating sequence, but it has 16 steps so it’s not always obvious).

Now gradually reduce the length, and you should hear the sequence becoming shorter as it repeats. If you reduce the length to its minimum, the randomness will stop (because the length is now 1, there is no change between consecutive steps), and it is highly likely that if you increase the length again then you won’t get any randomness until you move the chance control away from its minimum position.

If, instead of reducing the chance control to its minimum, you increase it to the maximum, the sequence now repeats after 32 steps (the sequence flips after 16 steps, so descending runs become ascending runs and vice versa). Reducing the length control shortens the sequence as expected, but when length reaches the minimum you will hear the oscillator pitch flipping between two values.