Noxious is a polyphonic additive synthesizer. Noxious takes an intermediate route to additive synthesis by offering a limited mean of manipulating these sinusoidal oscillators, called partials, through "modifiers" and classical filters.
Instead of creating partials from scratch, Noxious will allow you to start with a basic wave form from a predetermined list. These wave forms are not necessarily purely periodic. Being an additive synthesizer Noxious can generate up to 200 partials or sine oscillators per wave form.
These partials produced by the additive engine can then be transformed by a stack of up to five modifiers. The modifiers are applied in sequence and can modify the levels of the partials, their pitch or both. Each modifier can operate on a subset of partials. Modifiers range from equalizers, to tuners or even pure random noise.
After the partial modifiers, the wave form can be modified furthermore with two multi-state filters in series featuring resonance. Your typical low pass, high pass and band pass filters come in four flavors : 6, 12, 24 and 48 dB/octave slopes. And additional Vowel filter lets you play with voicy sounds.
All the above filters and modifiers can be furthermore modulated with two LFOs, two modulation envelopes, amplitude envelope and performance controllers such as velocity, aftertouch or modulation wheel. A modulation matrix lets you build your own modulation routes with adjustable modulation strength.
Of course, control voltage signals can be used to modulate sections of Noxious from external devices with Propellerhead Reason's cable system.