Future Audio Workshop has released the Pro One Analog Bank, a free soundset for the Circle software synthesizer.

This month Future Audio Workshop went retro, as we dusted down the original Sequential Circuits Pro-One synthesiser that we used to model Circle’s filter section and went about recreating the original factory patches which were contained in the original Pro-One owners manual.

This process involved first creating a patch on the Pro-One, analyzing the sound using frequency analysis tools, then matching the settings and tuning the sound so that they matched perfect between Circle and the Pro-One.

The Pro One Analog Bank for Circle is available as a free download.

More information: Future Audio Workshop / Pro One Analog Bank