EZEPTOCORE

Infinite Digits 8HP
SAMPLER GLITCH CLOCK EFFECTS

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Algorithmic 8 HP breakbeat sampler. Streams stereo 16-bit 44.1 kHz audio from SD (16 banks x 16 samples), slices and re-sequences it with a Turing-style rungler, and layers 16 live-switchable effects. Eurorack port of the open-source zeptocore.

Patch Ideas · 4

Evolving amen break
Load a classic breakbeat into bank 1 · feed a master clock into Clock In · crank AMEN (X) so the rungler re-orders slices · nudge BREAK (Y) to sprinkle FX · stereo out into the mixer for a constantly mutating amen.
Walkthrough
  1. Copy a drum break as break.wav onto the SD card (bank 1, slot 1).
  2. Feed a steady 4/4 clock from your master clock into Clock In.
  3. Hold B, tap key 1 to pick bank, then tap key 1 again for the sample.
  4. Turn X (AMEN) up slowly - you will hear slices start to recombine.
  5. Nudge Y (BREAK) clockwise to taste so FX begin to flicker in.
Signal out Audio Out L + R into the mixer
Listen for Familiar amen groove that slowly rearranges itself, with bursts of stretch, reverse and bit-crush riding on top.
▸ Show diagram
Patch diagramPatch diagram with 3 modules and 3 connections. Modules: EZEPTOCORE, Clock, Mixer. Signals: 2 audio, 1 clock.EZEPTOCOREClockMixerX (AMEN): 1 o'clockY (BREAK): 11 o'clockZ: noonClock InclkAudio Out LaudioAudio Out RaudioOutclkIn LaudioIn Raudioaudioclock
Break as drum trigger source
Clock EZEPTOCORE from the rack clock · loop a breakbeat · take Trigger Out into an envelope/VCA on another drum voice so the extracted kick/snare hits play an external drum along with the break.
Walkthrough
  1. Keep AMEN low so the original break order stays intact.
  2. Patch Trigger Out to a percussive envelope's trigger input.
  3. Route that envelope into a drum voice or noise-burst module.
  4. Sum the drum voice and the EZEPTOCORE audio into the mixer.
  5. Adjust Y (BREAK) gently - clean break, extra drum layered on top.
Signal out Audio Out L (or L+R) plus external drum voice into mixer
Listen for The break playing normally while a second drum voice plays along, doubling the kick/snare hits extracted from the loop.
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 5 connections. Modules: EZEPTOCORE, Clock, Envelope, Drum Voice, Mixer. Signals: 2 audio, 1 cv, 1 trigger, 1 clock.EZEPTOCOREClockEnvelopeDrum VoiceMixerX (AMEN): lowY (BREAK): lowClock InclkTrigger OuttrigAudio Out LaudioOutclkTrigtrigOutcvCVcvOutaudioInaudioaudiocvtriggerclock
Mash-mode effect performance
Hold C to enter mash mode so the 16 keys become FX toggles · tap keys live while the break loops to throw delay, tape-stop, reverse and bit-crush on and off like a DJ's effect bar.
Walkthrough
  1. Hold C and tap the key for mash mode (see the colour cue on the keys).
  2. Start the master clock so the sample loops cleanly.
  3. Tap a key to toggle an effect - it stays on until tapped again.
  4. Combine keys for stacked FX (eg reverse + tape-stop).
  5. Use D to record the tap performance back into the sequencer.
Signal out Audio Out L + R into the mixer
Listen for A clean break that you are rewriting live - stutters, reverses and tape stops dropping in exactly where you tap.
▸ Show diagram
Patch diagramPatch diagram with 3 modules and 3 connections. Modules: EZEPTOCORE, Clock, Mixer. Signals: 2 audio, 1 clock.EZEPTOCOREClockMixerX (AMEN): 10 o'clockY (BREAK): 9 o'clockZ: noonClock InclkAudio Out LaudioAudio Out RaudioOutclkIn LaudioIn Raudioaudioclock
Clock divider for the rack
Use EZEPTOCORE's Clock Out with its divider to feed slower clocks to envelopes and sequencers while the break plays at full tempo · the whole rack locks to the sample's downbeat.
Walkthrough
  1. Patch your master clock into Clock In.
  2. Set Clock Out to a useful division (eg /4) in the settings menu.
  3. Send Clock Out into a sequencer's clock input.
  4. Also patch Clock Out to an envelope trigger for bass plucks.
  5. Keep the stereo audio going to the mixer - everything now runs on the break's grid.
Signal out Audio Out L + R to mixer; Clock Out to the rest of the rack
Listen for A tight break with sequenced bass and envelope accents all breathing on the same subdivision.
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 5 connections. Modules: EZEPTOCORE, Master Clock, Sequencer, Envelope, Mixer. Signals: 2 audio, 3 clock.EZEPTOCOREMaster ClockSequencerEnvelopeMixerX (AMEN): 10 o'clockY (BREAK): 9 o'clockClock InclkClock OutclkAudio Out LaudioAudio Out RaudioOutclkClock InclkTrigclkIn LaudioIn Raudioaudioclock

Behaviors

Rungler break order (AMEN) AMEN parameter (knob X in performance mode)

AMEN fully counter-clockwise plays slices in their original order. As you turn it up the built-in Turing/rungler sequencer recombines slices, and at full travel it cooks up a brand new slice + FX combination every pass of the loop.

FX probability (BREAK) BREAK parameter

BREAK controls how often the sixteen effects (and their combinations) are sprinkled onto the sample. Low = clean loop, high = wall-to-wall effect mayhem.

16 live-switchable effects mash mode keys / BREAK engine

Effects include saturation, loss, fuzz, bit-crush, time-stretch, delay, comb filter, repeat, tighten, expand, circulate, scratch, lower, reverse and tape-stop. Any of them can be toggled from the 16 keys or automated by BREAK.

Time-stretch to clock Clock In or tap tempo

Sample playback time-stretches to match the incoming clock (or tapped tempo from 30-300 BPM), so breaks stay in time when the master clock wobbles.

Stereo SD streaming sample load

Audio streams directly from the SD card in 16-bit 44.1 kHz stereo, so you can hot-swap between any of 256 samples (16 banks x 16 slots) without loading into RAM.

Percussion trigger extraction percussive sample content

The engine analyses incoming slices and fires Trigger Out on kick, snare or hi-hat hits inside the loop, giving you a live drum trigger track from any break.

Controls

Primary parameter knob X Main performance knob. Adjusts the parameter of the currently selected effect or, combined with button holds, controls pitch, tempo and bank/sample.
context-sensitive; held with A/B/C for global settings
Secondary parameter knob Y Second effect parameter for the active FX preset. Shapes depth or character alongside X.
per-effect parameter
Probability / volume Z Sets probability for the AMEN/BREAK engine and doubles as master volume when held with A.
probability + global volume
Modifier button A Hold to access global functions: +X for tempo, +Z for volume, +B tap for manual tempo tap (30-300 BPM).
shift/modifier key
Bank / sample select B Hold B then tap a key 1-16 to pick a bank, keep holding and tap another key 1-16 to pick the sample within that bank.
bank + sample navigation
Mode / play select C Switches between play modes (jump/manual, loop, retrigger) and into mash mode or bass mode for the 16 keys.
play-mode selector
Record / sequence D Arms and captures the real-time sequencer so key presses and FX toggles are looped back as a pattern.
sequencer record
Performance pads 16 keys Sixteen numbered keys. In jump mode each key jumps between 16 slices of the current sample, in mash mode they toggle the 16 effects, in bass mode they play a chromatic bass across the keyboard.
jump / mash / bass contexts

I/O

IN · 1

  • Clock In clock / trigger GATE
    External clock input. Drives the internal sequencer, slice timing and tempo-locked effects.

OUT · 4

  • Audio Out L audio AUDIO
    Left channel of the stereo sample and FX output.
  • Audio Out R audio AUDIO
    Right channel of the stereo sample and FX output.
  • Clock Out clock CLK
    Internal clock with on-board divider and multiplier, useful for syncing other modules to the break.
  • Trigger Out trigger GATE
    Analysis-derived trigger mirrored from the sample: kick, snare or hi-hat extraction follows the loop's rhythm and fires gates for the rest of the rack.