pladask-elektrisk/stereo-dradd
Stereo DRADD
Experimental time-based audio processor for the eurorack system. Stretches, bends and inverts time through granular synthesis, modified sample playback and tapped delay lines. Intended as a tool for adding synthetic and unnatural ambiance/coloration to synth patches.259
Capabilities 4
- Delaydelay
- TDL algorithm: tapped delay line with configurable shape (decaying, gate, reverse reverb) and tap density/pseudo-reverb processing. Delay memory 550ms–2300ms depending on CLK.259
- Granular Synthesisgranular-synthesis
- GRAIN algorithm: granular synthesizer allowing timestretching, scrubbing, and shuffling of incoming audio. Delay memory 600ms–2500ms depending on CLK.259
- Reverbreverb
- TDL algorithm produces gated and reversed reverb effects via tapped delay line shaping and all-pass filter pseudo-reverb.259
- Stereo Processingstereo-processing
- Two DSP channels tuned differently for stereo width; GRAIN and TAPE have independent random generators per channel; TDL has independently randomized tap spacings per channel.259
Jacks 10 — 7 in / 3 out
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (7) | |||
| CLK CV | cv | -5V to 5V | 259 |
| IN L | audio | — | Left audio input. Linked with right input: connecting to one sends mono signal to both channels.259 |
| IN R | audio | — | Right audio input. Linked with left input: connecting to one sends mono signal to both channels.259 |
| LOOP CV | cv | -5V to 5V | CV input for LOOP parameter; lowpass filtered, will not respond to rapid LFOs or audio rate signals.259 |
| MOD CV | cv | -5V to 5V | 259 |
| P1 CV | cv | -5V to 5V | CV input for P1 parameter; lowpass filtered, will not respond to rapid LFOs or audio rate signals.259 |
| P2 CV | cv | -5V to 5V | CV input for P2 parameter; lowpass filtered, will not respond to rapid LFOs or audio rate signals.259 |
| Outputs (3) | |||
| OUT L | audio | — | 259 |
| OUT R | audio | — | 259 |
| SUM | audio | — | Sum (L+R) output that combines the processing of both channels.259 |
Parameters 7
| Name | Type | Range | Behavior |
|---|---|---|---|
| Algorithm selector | switch | — | Three-position toggle switch selecting between GRAIN, TDL, and TAPE algorithms. P1 and P2 parameter functions change accordingly.259 |
| CLK | knob | 12000Hz – 48000Hz | Sets the DSP system clock frequency, controlling sample rate, delay memory size, and various other parameter rates. Also pitch-shifts audio stored in delay memory; full range yields approximately 2 octaves of pitch shifting. Low CLK settings decrease signal-to-noise ratio.259 |
| LOOP | knob | — | Decay/feedback parameter. CW from noon adds looping feedback (controls decay length). CCW from noon adds positive feedback across algorithm sections. Positive feedback results depend on algorithm and P1/P2 settings. Positive feedback can cause runaway oscillation; avoid minimum setting on startup.259 |
| MIX | knob | — | Dry/wet mixer affecting all three outputs (left, right and sum). Clean audio at minimum; completely processed audio at maximum. Cannot be controlled with CV.259 |
| MOD | knob | — | Random system clock modulation depth producing a random vibrato effect. CLK does not affect the speed of the MOD function.259 |
| P1 | knob | — | Algorithm-dependent parameter. Function changes depending on the selected algorithm (GRAIN, TDL, or TAPE).259 |
| P2 | knob | — | Algorithm-dependent parameter. Function changes depending on the selected algorithm (GRAIN, TDL, or TAPE).259 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [259]
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[260]
Pladask Stereo DRADD product pageproduct_page⚠ verified 2026-05-06 · manufacturer changed since last verified