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Presets

All presets (should be) compatible with latest firmware
Discussion thread: https://forum.orthogonaldevices.com/t/a773-presets-unit-files

Loading in the ER-301 (without having to worry about which unit was used as container):

  1. press “insert”
  2. press S3 again (“Presets”)
  3. browse to the file
  4. press “enter” to load
Synth building blocks
Voices
Drums
  • bd1 - Decent kick drum
  • bd2 - Better kick drum
Trigger/gate
Audio mangling
Effects

Synth building blocks

ad

AD envelope with variable attack and decay, works with short triggers as input.
Unit type: custom-unit
CPU: 3.3%
Controls:

  • attack (0-5s)
  • decay (0-5s)

ad exp

AD envelope (exponential response) with variable attack and decay, works with short triggers as input.
Unit type: custom-unit
CPU: 4.8%
Controls:

  • attack (0-5s)
  • decay (0-5s)

ad exp var

AD envelope (variable exponential response) with variable attack and decay, works with short triggers as input.
Unit type: custom-unit
CPU: 5.6%
Controls:

  • attack (0-5s)
  • decay (0-5s)
  • exp (0-1)

decay env

Very cheap decay envelope with exponential decay. This is just a slew-limiter with feedback (no fancy GUI) to keep it cheap. Adjusting time, might require adjusting the negative gain on the feedback. A bit unstable in a charming way.
Unit type: slew-limiter
CPU: 0.24%
Controls:

  • time: 3ms-786.32s

glitch osc

Glitchy, circuit bend style oscillator
Unit type: Custom Source
CPU: 4.6% Controls:

  • v/oct
  • gate (silent when gate low)
  • center (0-1)
  • width (0-1)
  • fade (0-1)

rce

Simple implementation of a recombination engine. One version with triangle "DNA" the other with sine. Unit-type: Custom source
CPU: 7% Controls:

  • scissor (v/oct)
  • center (-1 .. +1)
  • width (0-1)
  • fade (0-1)
  • positive (v/oct)
  • positive offset (-0.5 .. +0.5)
  • negative (v/oct)
  • negative offset (-0.5 .. +0.5)

sloth

Inspired by the non-linear circuits sloth chaos eurorack module.
Unit-type: Custom Source
CPU: 3.84%
Controls:

  • slowness: (0-1)

stepped random

Generte random value on trigger.
Unit type: Custom Source
CPU: 0.9%
Controls:

  • trigger

stepped random x6

6x stepped random in one. One random value is the actual output, the others can be reached inside the unit as rand1-5. Advantages over stepped random is:

  1. a bit lighter on the CPU pr random (0.78% vs 0.9% for stepped random)
  2. convenient if you need lots of random

Unit type: Custom Source
CPU:4.7%
Controls:

  • trigger

Voices

2op-fm

2op-fm demo on instagram
Percussive FM voice inspired by the 2opfm module by Super Synthesis
Unit type: mixer-channel
CPU: 8.4%
Controls:

  • v/oct
  • ratio (0-1)
  • index (0-20)
  • release (0-1s)
  • gate

bass pluck

Simple plucky bass voice.
Unit type: mixer-channel
CPU: 8.4%
Controls:

  • v/oct
  • trigger
  • release (0-6s)
  • feedback (0-1)

karplus

Karplus strong voice.
Unit type: mixer-channel
CPU: 6.2%
Controls:????

  • v/oct
  • trigger
  • brightness (0-1)
  • damping (0-1)

Drums

bd1

No so versatile kick drum.
Unit type: mixer-channel
CPU: 8%
Controls:

  • amp rel (amplitude decay time)
  • pitch amt (pitch amount)
  • pitch rel (amplitude decay time)

bd2

Quite versatile kick drum, with lots of sweet spots.
Unit type: mixer-channel
CPU: 10%
Controls:

  • freq 0-1 (frequency env amount)
  • decay 0-1s
  • feedback 0-1

Trigger/gate

gated burst

gated burst screenshot
Emits bursts while receiving a gate. The bursts are pulses with intervals of "burst time" and length "burst time/2".
Unit type: custom-unit
Controls:

  • burst time: 0-1000 ms

gate to trigger

gate to trigger screenshot
Converts incomming gates to triggers of selected length.
Unit type: custom-unit
Controls:

  • trigger time (1-1000ms)

Audio mangling

buffer player

Grabs audio and play it pitched.
Unit type: two-bands
Controls:

  • v/oct
  • grab
  • dry/wet

granulator 1

Plays loaded sample in granular bursts
Unit type: manual grains
CPU: 9.2% Controls :

  • play trigger
  • range (0-1)

granulator 2

Mangles incomming audio and plays it in granular bursts
Unit type: custom effect
CPU: 17.8% Controls :

  • play trigger
  • range (0-1)

stutter

Repeats snip of audio on gate high.
Unit type: Custom Effect
CPU: 7.0%
Controls:

  • clock
  • gate
  • mult
  • div

Effects

cheap reverb 1 + 2

Cheap reverb demo on instagram
Unit type: six-bands
CPU usage: 7.2%
Room size reverb that doesn't tax the CPU. Works on stereo channel, but is mono in, mono out.
Controls:

  • size (0-1)

cheap reverb 3

Unit type: Custom Effect
CPU usage: 3.25%
Wonky delay based reverb, very light on the CPU.
Controls:

  • wet (0-1)

cheap reverb 4

Unit type: Delay CPU usage: 1%
Wonky delay based reverb, extremely light on the CPU.
Controls:

  • delay (0-1000ms)
  • fdbk (0-1)
  • wet (0-1)

mono to stereo 2

More sophisticated (using comb filters), better mono compatibility, but more expensive on the CPU.
Unit type: two-bands
CPU (on stereo channel): 18%
Controls:

  • width (0-1)
  • depth (0-1)

poor mans reverb 1

Poor mans reverb demo on instagram
Granular reverb based on Neil Parfitts reverb idea, recording with a Dub Looper, with dub controlled by incoming signal.
Unit type: two-bands
CPU: ~24%
Controls:

  • sense
  • length (10ms-1s): length of grains
  • speed (10-500Hz): speed of grains
  • scrub (0-1): random scrubbing of playhead
  • dry (0-1)
  • wet (0-1)

poor mans reverb 2

Variation of poor mans reverb 1, but recording with a Feedback Looper for a different flavor.
Unit type: two-bands
CPU: ~16%
Controls:

  • length (0-1s): length of grains
  • speed (10-500Hz): speed of grains
  • v/oct: pitch of reverb
  • dry (0-1)
  • wet (0-1)

tuned resample

Sample rate reduction, with pitch tracking.
Unit type: Two Bands
CPU: 4%
Controls:

  • v/oct
  • offset in v/oct
  • dry/wet (0-1)