befaco/rampage
Rampage
Befaco's take on the Serge/Buchla ramp generator: two voltage-controlled integrators (lag processors/slew limiters) with slope detectors, analogue logic functions, and flexible patch-programmable function generator/processor capabilities.834
Capabilities 8
- Envelope Followerenvelope-follower
- Channel A can be used as an envelope follower with adjustable response to rising and falling parts, using MIN as the envelope output.834
- Envelope Generatorenvelope-generator
- Can generate AD, ASR, and more complex ADSR-style envelopes using gate/trigger inputs and rise/fall faders.834
- Function Generatorfunction-generator
- Dual Serge/Buchla-style ramp generator (two voltage-controlled integrators) producing rise/fall functions usable as envelope, LFO, or slew.834
- LFOlfo
- In cycle mode produces LFO waveforms including square (from RISING/FALLING), triangle (equal RISE/FALL), and sawtooth (minimum RISE fader). Supports hard and soft sync.834
- Lowpass Filterlowpass-filter
- Can function as a basic low-pass filter; set RANGE to high (fast/small dot) and adjust RISE/FALL sliders to control cutoff.834
- Slew Limiter / Portamentoslew-limiter
- Built around two voltage-controlled integrators (lag processors/slew limiters) with independently CV-controllable rise and fall times and variable waveshaping.834
- Slope Detectorslope-detector
- Each channel has RISING and FALLING gate outputs that detect when the output signal is rising or falling. When used with external signals, the lag processor speed must be matched to the incoming signal speed.834
- Voltage-Controlled Oscillatorvco
- Dual VCO capability in cycle mode with square, PWM, saw, log, exp, and triangle shapes; supports hard and soft sync.834
Jacks 21 — 10 in / 11 out
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (10) | |||
| CH1 CYCLE | gate | — | Gate input that inverts the CYCLE switch state. Does not trigger the rampage — only toggles cycle mode.834 |
| CH1 FALL CV | cv | — | CV input for voltage control of fall time, equivalent to the Fall fader.834 |
| CH1 IN | mixed | — | Signal input for CV or audio. Insert a gate to convert it into an AD envelope with sustain.834 |
| CH1 RISE CV | cv | — | CV input for voltage control of rise time, equivalent to the Rise fader.834 |
| CH1 TRIGG | trigger | — | Trigger input that starts the internal function generator. In cycle mode can be used as hard sync.834 |
| CH2 CYCLE | gate | — | 834 |
| CH2 FALL CV | cv | — | 834 |
| CH2 IN | mixed | — | 834 |
| CH2 RISE CV | cv | — | 834 |
| CH2 TRIGG | trigger | — | 834 |
| Outputs (11) | |||
| B>A | gate | ≤10V | Comparator output: outputs 10V when channel B's output is greater than channel A's output.834 |
| CH1 EOC | trigger | ≤10V | End of Cycle: outputs a short 10V pulse each time the internal function generator reaches 0V. Does not work with external signals.834 |
| CH1 FALLING | gate | — | Slope detector output: outputs gate only during fall times.834 |
| CH1 OUT | mixed | — | 834 |
| CH1 RISING | gate | ≤10V | Slope detector output: outputs 10V gate when the channel output is rising.834 |
| CH2 EOC | trigger | ≤10V | 834 |
| CH2 FALLING | gate | — | 834 |
| CH2 OUT | mixed | — | 834 |
| CH2 RISING | gate | ≤10V | 834 |
| MAX | mixed | — | Analog OR / Peak Follower: compares outputs of both channels and outputs the maximum value at any time.834 |
| MIN | mixed | — | Analog AND: compares outputs of both channels and outputs the minimum value at any time.834 |
Parameters 12
| Name | Type | Range | Behavior |
|---|---|---|---|
| CH1 CYCLE Switch | switch | — | Selects between One Shot mode (stops when fall reaches 0V) and Cycle mode (re-triggers when fall reaches 0V, acting as a function generator). One shot and cycle modes can only be re-triggered during the falling state.834 |
| CH1 FALL | fader | — | Controls fall time using the same principle as the Rise fader.834 |
| CH1 RANGE | switch | — | Three-position switch selecting speed range: High (small dot, audio rate), medium, Low (big dot, LFO/long envelopes).834 |
| CH1 RISE | fader | — | Controls rise time. Fader up = longer rise time. As fader increases, frequency decreases in cycle mode or when used as a low pass filter.834 |
| CH1 SHAPE | knob | — | Changes the integrator's response curve from exponential to linear or logarithmic.834 |
| CH1 TRIG Button | button | — | Manually triggers (initialises) the internal function generator for channel A.834 |
| CH2 CYCLE Switch | switch | — | Selects between One Shot mode (stops when fall reaches 0V) and Cycle mode (re-triggers when fall reaches 0V). One shot and cycle modes can only be re-triggered during the falling state.834 |
| CH2 FALL | fader | — | Controls fall time using the same principle as the Rise fader.834 |
| CH2 RANGE | switch | — | Three-position switch selecting speed range: High (small dot, audio rate), medium, Low (big dot, LFO/long envelopes).834 |
| CH2 RISE | fader | — | Controls rise time. Fader up = longer rise time. As fader increases, frequency decreases in cycle mode or when used as a low pass filter.834 |
| CH2 SHAPE | knob | — | Changes the integrator's response curve from exponential to linear or logarithmic.834 |
| CH2 TRIG Button | button | — | Manually triggers (initialises) the internal function generator for channel B.834 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [834]
- [835]