Materia is AudioThing's additive re-synthesizer, and it occupies a corner of synthesis most producers rarely touch directly. Instead of scanning stored wavetables or carving a tone down with filters, it builds sound from individual sine partials, and it seeds those partials by analysing a sample you load. Drop in a vocal, a cymbal or a synth one-shot and Materia decomposes it into as many as 96 harmonic components you can edit one by one.
Its real depth is per-partial control. Every partial carries its own frequency, amplitude, phase and a 128-point envelope with editable duration and sustain loop points, which is an unusually fine level of control at this price. You can hold the low harmonics while the upper ones decay, graft new overtones onto a real recording with Add Empty Partials, or detune the stack into something metallic. A 10-type filter, two envelopes and two drawable LFOs shape the result, and four effects, led by a physical-modelling resonator that mimics pipes, plates and springs, give it body.
The trade-off is that Materia is a specialist. It is not a preset-and-play synth for instant bass and leads, and its partial editing rewards curiosity rather than speed. Against a multi-engine synth like Arturia Pigments it does far less overall, but it goes much deeper on resynthesis, and its per-partial envelopes do something Pigments cannot. For sound designers who start from real audio, that focus is the point. Read the full first look at AudioThing Materia for the complete feature breakdown.