Reason’s Algoritm lets you easily create wild and wondrous FM sounds

The nine-operator Rack instrument is designed to make FM synthesis “easier and more fun” than ever before.


Reason Studios has unveiled a new instrument for its DAW. Algoritm is a nine-operator FM synth that gives users more control over their sound design and easily lets beginners and experts create inspirational patches. This is Reason’s first new instrument since the introduction of Reason+.

Although FM synthesis found its feet in the 80s, this modern FM synth comes with Reason’s goal of helping you “create the new iconic sounds of the 20s”. Classic FM synths have four or six operators, but Reason has pushed the boat out and equipped Algoritm with nine slots. This means you can load in up to nine FM operators, or create a mix of operators, wavetable oscillators, shapers and filters.

Each operator slot can be routed in any way that you like, giving you more freedom and control over the FM algorithm. If you’re feeling adventurous, you can use the randomiser function to instantly get something unexpected. It can also be used to morph an existing patch. A bank of 250 expertly crafted presets offer can give you some inspiration, too.

Algoritm has three LFOs and two Curves – essentially envelopes – with a matrix to go deeper with your modulation. A unison mode with detune, spread, blend and timing lets you thicken up your patches. Feedback loops can be created for dramatically different sounds, with a dedicated Feedback dial to keep things under control.

Check out the overview below.

Reason’s Algoritm may help make FM synthesis easier, but it’s no simple synth. “This is definitely one of our most advanced synthesizers”, says Mattias Häggström Gerdt, product manager at Reason Studios. “Still, it is really easy to use. No matter your prior experience, Algoritm will help you sound like you.”

Algoritm is available as part of the Reason+ subscription or as a separate purchase for $99/€109 via the Reason Studios add-on shop.

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