
One interesting trick here is OctaSine’s “white noise mode,” which is available for each operator. The bottom half of the GUI is where you’ll find the four LFO modules, each capable of operating in sync with the host DAW.

FM synths are notorious for their steep learning curve, but OctaSine’s simple monochrome GUI will make the learning process at least a bit less difficult.Įach operator has a dedicated section with the most important controls laid out horizontally. If you’re looking for a more stable FM synth plugin, check out Dexed by Digital Suburban and Exakt Lite by Sonic Bits.īack to OctaSine, the plugin sports a great-looking user interface with an intuitive control layout. However, keep in mind that future updates might not be backward compatible. That said, OctaSine is already a useful instrument, and you can definitely give it a try if you’re looking for a virtual FM synth. The current build is v0.5.1, and the project is still a work in progress.

It takes inspiration from popular virtual FM synths like the FM8 from Native Instruments. OctaSine is a capable four-operator FM synthesizer with independent volume, panning, feedback, and ADSR controls for each operator. Joakim Frostegård releases OctaSine, a free (open-source) 4-operator FM synthesizer in VST plugin format for digital audio workstations on Windows, macOS, and Linux.
