D-250 Pattern Generator

Pattern generator module

8 patterns x 8 variations x 2 banks = 128 patterns total. Patterns 1-6 are 16 beat, patterns 7&8 are 12 beat.
One bank (8patt x 8vari) is preset, second bank (8patt x 8vari) is user recordable.

Left side:
– clock input jack
– button + 2LEDs
(short=factory bank/user bank selection – LED glows if user bank is selected
long=sets change patt/vari on 1st beat only or on any beat – allows patterns mixing, rec step confirmation in rec mode)
– reset input jack
– reset/rec button + LED (short makes reset, long gets in record mode/quits record mode)
– pattern selection knob + CV jack input (knob serves as CV attenuator if jack is plugged in)
– variation selection knob + CV jack input (knob serves as CV attenuator if jack is plugged in)

Right side:
– 8 output (or input in rec mode) jacks + LEDs

Settings:
– upper internal jumper (reset behavior): jumper set = reset input fires first pattern step itself (next clock makes second step), removed=internally prepares for reset and waits for clock to move to first step
– lower internal jumper (trig length): jumper set = 10ms trigger outputs, removed = 2ms trigger outputs

– holding upper button (bank-1/any) at power-up: gate or trig outputs (trig length 10/2ms depends on jumper setting), setting is memorized
– holding lower button (rec/reset) at power-up: changes reset input to work as “clock disable” = stays at current step while reset input is active (repeats current step with incoming clock), setting is memorized
– holding both buttons at power-up: factory reset (default settings = trig outputs, reset input = reset, user patterns rewrited to factory patterns)

Recording:
there are three ways to record your own patterns:
– manual (every step is confirmed/recorded by button)
– one pattern (currently recorded step is confirmed by clock input)
– all patterns at time (steps are confirmed by clock input)

Manual (step) recording (really oldschool):
– select pattern/vari you wish overwrite
– press and hold reset/rec (underlined text “REC” = hold button), rec/reset LED turns on. Now output jacks works as inputs 🙂 User bank will be selected automatically if currently is not set (user bank LED will goes on).
– connect an 5V signal (active gate) to mult, connect patch cables to right-side jacks and make required combination for first beat
– confirm this step by top button (w. small triangle)
– repatch cables for second step (remove all cables if no trig/gate should be recorded for second step), confirm this step by top button
– repeat previous for all 16 steps (patts 1-6) or 12 steps (patts 7&8)
– if all 16/12 steps are recorded REC LED goes out

This way you can record a “counting” for example easily: select required patt/vari, press and hold REC, connect 5V to first jack, confirm by top button, move patch cable to second jack, confirm by to button. To record a drum pattern you should prepare a drum pattern table on piece of paper

One pattern recording:
– select pattern/vari you wish overwrite
– press and hold reset/rec (underlined text “REC” = hold button), rec/reset LED turns on. Now output jacks works as inputs 🙂 User bank will be selected automatically if currently is not set (user bank LED will goes on)
– connect an clock signal to clock input, trig/gate signals to right side jacks
– input trig/gate combinations will be recorded at time when clock will come (think about preparing pattern in MIDI sequencer, MIDI clock and MIDI-to-trig or MIDI-to-gate module…)
– if all 16/12 steps are recorded REC LED goes out

Recording all patterns at time:
– press and hold reset/rec for more than 10s, rec/reset LED will blink rapidly. Now output jacks works as inputs 🙂 User bank will be selected automatically if currently is not set (user bank LED will goes on).
– connect an clock signal to clock input, trig/gate signals to right side jacks
– input trig/gate combinations will be recorded at time when clock will come (think about preparing pattern in MIDI sequencer, MIDI clock and MIDI-to-trig or MIDI-to-gate module…). Patterns are recorded in this order: p1v1, p1v2, p1v3,…,p1v8, p2v1, p2v2,…,p8v7, p8v8
– if all 960 steps are recorded REC LED goes out (6x 16-step patterns x 8 vari=768steps + 2x 12-steps patterns x 8 vari=192 steps. 768+192=960beats total). An MIDI clock source and MIDI-to trig (or MIDI-to-gate) module can be used, then you should prepare 960beat sequence in your MIDI seq (96 bars 4/4 + 24 bars 3/4 with sixteen 1/16 note grid and use 1/16 MIDI clock output)

http://ladik.ladik.eu/?page_id=1625