Rainbow is a free software synthesizer developed by BigTick. Available format(s): VST for Windows.
- VSTi & Standalone versions.
- FM, AM, additive and subtractive synthesis.
- 1 to 4 oscillators per voice.
- Up to 24 voices (CPU dependant).
- Selectable shape (sine, saw, square, triangle, noise).
- Coarse / Fine tuning knobs, with selectable keyboard tracking mode.
- LFO mode.
- Distortion (Waveshaping knob).
- APDSR (Attack/Peak/ Decay/ Sustain/ Release) level envelope.
- Control of the level by MIDI velocity and/or key position.
- 4×4 Frequency and Amplitude modulation matrix.
- Selectable Low, High, or Band pass double mode filter, with cutoff and resonance controls.
- APDSR envelope and env mod knob.
- Resonance controllable by MIDI velocity.
- APDSR pitch envelope.
- Portamento.
- High-quality oversampling mode with antialias filter.
- Fully midi-controlled, all controllers can be customised.
- Supports Doepfer Pocket Dial controller.
- 16 step sequencer.
- Microtuning support.
http://www.bigtickaudio.com/
