Doepfer A-149-4 Eurorack Quad Triggered Random / Quantized Voltages Module

Doepfer A-149-4 - Quad Triggered Random / Quantized Voltages

The A-149-4 generates four triggered random voltages which meet the criteria chosen by several controls.

The manual controls for the criteria selection are:

•           Octave range (manual control "Oct."): this parameter defines how many octaves are covered by the random voltages (0 ... +5V, with "Oct." control fully Counter Clockwise only 0V are generated)

•           Grid (6 illuminated radio buttons): this parameter defines the grid of the random voltages:

                •           Octaves (Oct)

                •           Octaves + Quin (Quint)

                •           Chords

                •           Scale

                •           Semitones

                •           Continuous (i.e. stepless)

•           Minor / Major (2 illuminated radio buttons): this parameter defines in case of chords or scales if they are minor or major. For all other grids this parameter has no meaning

•           Sixth / Seventh (2 illuminated separate buttons): these parameters define if the sixth or seventh is added. Valid only if Oct, Quint, Chord or Scale is chosen as grid.

The output voltages follow the 1v/octave standard with the exception of the continuous mode. The voltages in this mode are totally random and do not follow the 1V/oct standard (i.e. not a multiple of 1/12V).

The generation of a new random voltage at the output (CV Out 1 ... 4) is triggered by the corresponding trigger input (Trig. In 1 ... 4). The trigger inputs are normalled top down. The minimum trigger level is +2.5v (up to max. +12V).

Applications

•           random polyphonic structures (in combination with the Doepfer polyphonic modules)

•           any application that requires several random voltages

Specifications