FRMS - Granular Synthesizer

FRMS blends Granular, FM, Additive, and Subtractive synthesis in a powerful, flexible layering system. Create lush, evolving soundscapes or gritty, glitchy textures by combining up to four synthesis layers. With a sleek, intuitive interface, FRMS turns basic sounds into immersive audio experiences—from dense ambient drones to mechanical soundscapes.

Choose from FRMS’s curated sample library, import your own sounds, or capture live audio for instant granulation. Shape unique sounds with layered synthesis, independent envelopes, modulation, and effects.

Key Features:

- 4 Synthesis Engines, 4 Layers Per Voice – Mix Granular, FM, Additive, and Subtractive synthesis.
- FM Modes & Operator Stacking – Create rich, complex tones with 8 FM modes.
- Real-Time Granulation – Process samples or live audio with up to 640 grains.
- Deep Modulation & Envelope Control – Modulation matrix per layer, plus 2 EGs and filters per layer.
- Advanced FX & Polyphony – 4 voices polyphony, arpeggiator, delay, and reverb.
- High-Quality Sample Library & MPE Compatibility – Access FRMS’s expansive sound library and integrate with MIDI Polyphonic Expression and Ableton Link.

Unlock endless sonic possibilities with FRMS, perfect for both beginners and advanced sound designers.

"Imaginando super fan over here ..own everything they make. FRMS is no exception, as it’s incredibly powerful, versatile, and surprisingly intuitive. It’s a joy to work with, and the sound possibilities are endless."

"I expected a lot from this app given the pedigree of the developer, but wow, this exceeded all my expectations. The depth of the granular synthesis engine combined with FM is truly amazing. A must-have for any sound designer."

"This is a great app for anyone serious about granular synthesis. The interface is clean and easy to use, and the sound quality is top-notch. I find myself getting lost for hours exploring new sounds."

"This synth is an interesting and great evolution in the world of granular. It pushes the boundaries of what you can do with layers and modulation. The presets are inspiring, but the real magic comes when you start creating your own."

"FRMS has officially become my favorite synth app. The way it combines granular synthesis and FM is just genius. You can get subtle textures or full-blown sonic mayhem. Highly recommended!"

"Every time I use FRMS, I feel like I’m discovering new dimensions of sound. The modulation options are vast, and the way you can shape tones makes it a designer’s dream. This app has changed my approach to sound design."

"There’s something magical about the way FRMS handles sound. It’s intuitive yet deep, and I’ve created some of my best work using this app. Kudos to the developers for making such a high-quality product."

"FRMS is absolutely brilliant. The interface is smooth, and the ability to layer sounds and modulate them takes granular synthesis to another level. I’ve been recommending it to everyone I know."

"This app is an endless source of inspiration. Whether I’m working on cinematic soundscapes or glitchy textures, FRMS has everything I need. The layers and effects are phenomenal."

"If you love creating ambient music, this app is for you. The ability to tweak and layer samples into lush textures is incredible. It’s become an essential part of my workflow."

"The design of FRMS is superb. It’s both visually pleasing and incredibly functional. Every detail has been thought through, and the sound engine delivers in every way."

"Hands down, the best granular synth I’ve used. The presets are great, but what sets it apart is how intuitive it is to create your own unique sounds."

Version 1.12.2 release notes

- Fixed EG values when changing between presets with different EG max value - Fixed layer file name when copy/pasting between layers