Amoeba
A monophonic subtractive synthesizer with selectable oscillator shapes, glide, noise, a resonant filter and separate filter and amplitude envelopes.
Overview
Amoeba is a single voice synthesizer for melodic lines, basses and simple lead sounds. It starts with one oscillator, adds an optional noise source, and shapes the result with a switchable low pass or high pass filter.
Separate filter and amplitude envelopes let its brightness and loudness follow different contours. Glide smooths pitch changes between notes.
Sound Capabilities
Amoeba is a simple but fierce synthesizer. Its monophonic basis combined with its filter envelope makes it perfect for deep bass lines, rubbery acid sequences and plinky rhythmic pulses. When combined with the Sync Delay or Spaces, the sonic capabilities expand greatly. From implied chords to deep ambient structures, the Amoeba becomes a source of tonal content that stacks and swells into something far beyond its original signal.
Properties
| Property | Value |
|---|---|
| Default polyphony | 1 |
| Maximum polyphony | 1 |
| Tonal scale support | Yes |
| Velocity support | Yes |
| Sustain support | Yes |
| Glide support | Yes |
| Voice allocation | First note priority |
Controls
| Control | Description | Default | Minimum | Maximum | Units | Options |
|---|---|---|---|---|---|---|
| Oscillator Shape | Chooses the waveform used by the synth oscillator. | triangle | sine, triangle, sawtooth, square | |||
| Glide | Sets the portamento time used when the synth moves from one note to the next. | 0 | 0 | 1 | seconds | |
| Noise Level | Sets how much noise is mixed into the synth before the filter. | -64 | -64 | 0 | dB | |
| Noise Type | Selects the color of the noise source. | white | white, pink, brown | |||
| Noise Quality | Changes the playback rate of the noise source. | 1 | 0 | 1 | rate multiplier | |
| Filter Cutoff | Sets the filter envelope base frequency. | 20000 | 20 | 20000 | Hz | |
| Filter Sweep | Sets how far the filter envelope moves above the cutoff frequency. | 2 | 0 | 12 | octaves | |
| Filter Res | Emphasizes frequencies around the filter cutoff. | 0 | 0 | 24 | Q | |
| Filter Type | Switches the synth filter between low pass and high pass behavior. | LP | LP, HP | |||
| Filter Envelope Attack | Sets how long the filter envelope takes to rise. | 0.001 | 0 | 2 | seconds | |
| Filter Envelope Decay | Sets how long the filter envelope takes to fall to the sustain level. | 0.2 | 0 | 2 | seconds | |
| Filter Envelope Sustain | Sets the filter envelope level held while the note continues. | 0.5 | 0 | 1 | Gain | |
| Filter Envelope Release | Sets how long the filter envelope takes to return to the cutoff after the sustain ends. | 1 | 0 | 5 | seconds | |
| Amp Envelope Attack | Sets how long the note takes to reach full volume. | 0.001 | 0 | 2 | seconds | |
| Amp Envelope Decay | Sets how long the volume takes to fall to the sustain level. | 0.1 | 0 | 2 | seconds | |
| Amp Envelope Sustain | Sets the held volume level after attack and decay. | 0.5 | 0 | 1 | Gain | |
| Amp Envelope Release | Sets how long the note takes to fade out after release. | 1 | 0 | 5 | seconds |