Both methods can make incredible sounds, but they work on completely different principles — one sculpts frequencies away with a filter, the other builds new harmonics from sine waves. Here is when to reach for each, with a side-by-side comparison.
FM synthesis has a reputation for being hard. It isn’t, really — it just uses a different vocabulary from the subtractive synths most producers learn on first. Once you understand three things — operators, algorithms, and ratios — the rest falls into place.
Every film composer and sound designer knows the limits of traditional subtractive synthesis. When you need sounds that evoke mystery, tension, or futuristic scale — glass-like pads, alien soundscapes, metallic impacts — you need Frequency Modulation.
A tour of what is in the plugin: the factory preset system and hardware SysEx import, the eight operators and their ratios, the 20 algorithms and the custom algorithm editor, and the three interface tabs.