intellijel/tangrams
Tangrams
Dual analog ADSR envelope generators with internal VCAs and a voltage-controlled cycling gate pulser. Each ADSR can be gated by its own inputs or by either of the pulser's two sequential pulse stages (P1 and P2), enabling delayed one-shots, cycling organic envelopes, and complex gate patterns.395
Capabilities 3
- ADSR Envelope Generatoradsr-envelope
- Dual analog ADSR envelope generators (Envelope 1 and Envelope 2), each with Attack, Decay, Sustain and Release controls and a 3-position speed switch scaling timing ranges.395
- LFOlfo
- When the CYCLE switch is set to CYCLE, the pulser repeats endlessly, creating cycling ADSR shapes that function as complex unipolar LFOs, especially when two envelopes are merged.395
- Voltage-Controlled Amplifiervca
- Each envelope has a dedicated internal VCA accessible via the LEVEL IN jack, normalled to 8V. Audio can be patched into LEVEL IN for direct VCA functionality.395
Jacks 8 — 6 in / 2 out
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (6) | |||
| ENV 1 GATE IN | gate | — | Gates Envelope 1; normalled to Envelope 2. OR'd with MANUAL GATE button and PULSER when PULSE SOURCE is active.395 |
| ENV 1 LEVEL IN | mixed | — | Controls the amplitude of the internal VCA for Envelope 1. Normalled to 8V; audio can be patched in for envelope-controlled VCA functionality. Bipolar — negative voltage inverts envelope output.395 |
| ENV 1 RETRIG IN | trigger | — | Resets Envelope 1 and restarts ATTACK while envelope is gated. No effect when gate is low.395 |
| START | trigger | — | Trigger input that starts or resets the Pulser to the beginning of PULSE 1. OR'd with START button.395 |
| T1 CV IN | cv | — | Offsets PULSE 1 time. Positive voltages increase time; negative voltages decrease it. Normalled to T2 CV IN. Scaled by T1 CV Attenuverter.395 |
| T2 CV IN | cv | — | Offsets PULSE 2 time. Normalled from T1 CV IN when unpatched. Scaled by T2 CV Attenuverter.395 |
| Outputs (2) | |||
| ENV 1 OUT | cv | ≤8V | VCA-processed output of Envelope 1; maximum level is 8V when LEVEL IN is at default (8V normal). Can output audio when audio is patched into LEVEL IN.395 |
| PULSE OUT | gate | — | Direct output of the PULSER. HIGH/LOW polarity per PULSE OUT POLARITY switch (P1 high or P2 high).395 |
Parameters 15
| Name | Type | Range | Behavior |
|---|---|---|---|
| A (Attack Time) ENV1 | fader | — | Sets the time for Envelope 1 to rise from 0V to maximum (8V unless LEVEL IN scales it). The overall time range scales with the ENV 1 SPEED switch.395 |
| CYCLE | switch | — | DOWN (SINGLE): single pulse sequence PULSE1 > PULSE2 > OFF, triggered by START jack or button. UP (CYCLE): pulser cycles repeatedly PULSE1 > PULSE2 > PULSE1 > ... and starts automatically; START resets to beginning of PULSE 1.395 |
| D (Decay Time) ENV1 | fader | — | Sets the decay time for Envelope 1 from maximum to sustain level. Range depends on ENV 1 SPEED switch.395 |
| ENV 1 MANUAL GATE | button | — | Hold to gate Envelope 1 at +5V; OR'd with GATE IN and PULSER sources.395 |
| ENV 1 PULSE SOURCE | switch | — | 3-position switch: LEFT selects PULSE 1 as the high gate for Envelope 1; MID disables pulser for Envelope 1; RIGHT selects PULSE 2 as the high gate for Envelope 1. In all cases OR'd with GATE IN and MANUAL GATE.395 |
| ENV 1 SPEED | switch | — | 3-position switch selecting timing scale for Envelope 1. FAST: max A ~1.5–2.0s, D/R ~4–5s. MED: max A ~10–12s, D/R ~22–24s. SLOW: D/R ~45–50s.395 |
| ENV 2 PULSE SOURCE | switch | — | 3-position switch: LEFT selects PULSE 1 as the high gate for Envelope 2; MID disables pulser for Envelope 2; RIGHT selects PULSE 2 as the high gate for Envelope 2.395 |
| PULSE OUT POLARITY | switch | — | UP: PULSE OUT is HIGH during PULSE 1 and LOW during PULSE 2. DOWN: PULSE OUT is LOW during PULSE 1 and HIGH during PULSE 2.395 |
| R (Release Time) ENV1 | fader | — | Sets the release time for Envelope 1 from current level to 0V. Range depends on ENV 1 SPEED switch.395 |
| S (Sustain Level) ENV1 | fader | 0V – 8V | 395 |
| START Button | button | — | Starts a stopped single-shot pulser or resets a running pulser to the beginning of PULSE 1. OR'd with START jack.395 |
| T1 | knob | 1ms – 16000ms | Sets the length of PULSE 1. Can be modulated via T1 CV IN with the T1 CV attenuverter scaling the CV amount and polarity.395 |
| T1 CV Attenuverter | knob | — | Scales and inverts CV going into T1 CV IN. Fully CW = full range; noon = fully attenuated (no effect); fully CCW = full inverted range.395 |
| T2 | knob | ≥1ms | Sets the length of PULSE 2. In SINGLE mode ranges 1ms to infinity; in CYCLE mode max is 16s. Modulated via T2 CV IN (or normalled T1 CV IN) with T2 CV attenuverter.395 |
| T2 CV Attenuverter | knob | — | Scales and inverts CV going into T2 CV IN. Fully CW = full range; noon = fully attenuated (no effect); fully CCW = full inverted range.395 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [395]
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[396]
Intellijel Tangrams product pageproduct_page● verified 2026-05-15