Analogue Systems RS-130 Programmable Scale Generator

arabesque? indian? oriental?

The Programmable Scale Generator exceeds the possibilities of an ordinary quantiser module. While a quantiser usually is chromatic only and with a little luck it allows major and minor scales, a programmable scale generator like the RS-130 makes it possible to freely program scales beyond the customary semitone scale with all their derivates. Scales with quarter-note or eighth-note intervals are possbile which is important e.g. for indian or oriental music.

Two modes determine when quantisation takes place: in "free run" it happens only when input voltage changes. In "gate" mode quantisation happens when the RS-130 receives a gate signal.

Six quantisation modes are available:

• Quantiser: Acts as a normal chromatic quantiser for semitones
• C major scale: when offset = 0 and no CV at the transpose input it creates only a C major scale (C, D, E, F, G, A, B)
• C minor scale: when offset = 0 and no CV is present at the transpose in, only a C minor is created (C, D, Eb, F, G, Ab, Bb)
• C major Arpeggio: when offset = 0 and no CV is present at the transpose in, only a C major arpeggio is created (C, E, G)
• C minor arpeggio: when offset = 0 and no CV is present at the transpose in, only a C minor apreggio is created (C, Eb, G)
• user memory mode: creates user programmed scales

When setting a fixed voltage with the offset control (0-2V, ie. two octaves offset), you apply a fixed transposition to the scale. Anypossible scale can be set when you use the transpose CV inputs in addition.

At each quantisation process a trigger signal will fired at the trig out which you can use for clocking a sequencer or a fireing envelopes.