FabFilter Sound Set Bundle online help

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Component buttons

All components that make up the synthesizer in FabFilter Twin are displayed as large component buttons in the top section of the interface: three oscillators and following the signal path, two filters, two delays, and two more filters in the delay section.

FabFilter Twin 2 - Modulation Button

You can edit the most important parameters of a component directly by clicking and dragging on the component button. As soon as you move the mouse cursor over a component button, value displays will pop up to show the current values of those parameters.

  • Drag horizontally and vertically to change the parameters. There are two sets of parameters: you can toggle between them by holding down the Ctrl key on Windows, or the Command key on macOS. For example, in the above screen shot, you would normally change the filter frequency and peak parameters; by holding down Ctrl/Command, you adjust the filter panning and response curve parameters instead.
  • To view all parameters of a component, such as a filter or oscillator, click the component button once. This will expand the complete interface for all related components. Click the component button again to hide the interface. While a component interface is expanded, you can scroll the top section of Twin's interface with the left and right scroll buttons at the far ends of the interface.
  • Hold down Shift while dragging to adjust only one parameter in the direction in which you move the mouse cursor.
  • Hold down Alt while dragging to adjust all related components in parallel.
  • You can also adjust the component buttons with the mouse wheel. On Windows, most mouse wheels only work vertically, but you can hold down the Ctrl and Shift keys simultaneously for horizontal adjustments.
  • Each of the buttons has an on/off switch in the left top corner, to quickly enable or disable the component.

We strongly suggest for you to try all these movements yourself, and you'll find it's a great aid in quickly setting up Twin the way you like. The most important parameters are always available, and if you need access to all parameters, they are just a mouse click away.


  • Clicking the Main EG button does not open a dedicated EG section, but rather highlights the Main EG source in the modulation section.
  • You can turn off the parameter value displays for the component buttons with the Show Component Displays option in the Help menu.
  • The resize button in the lower-right corner of the interface allows you to make the interface wider, so you can see more components at the same time.

Next: Oscillators

See Also

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