Fractal FM9 - Modifier Parameters

62
9 MODIFIERS
MODIFIER PARAMETERS
By default, a modiers creates a direct, linear relationship: the controller changes and the parameter follows in
exactly the same way. Various parameters, however, allow you to change this relationship. You might change
the taper of a pedal to be “curved,” or make it work in reverse. Perhaps you want the parameter attached to a
footswitch to glide instead of snap. Here is an overview of the additional parameters you can use to create these
effects and many more. Find these options on the Modify page when you set up any modier.
Min and Max set the range of parameter change. These are extremely important parameters.
EXAMPLE: The modier for a pedal controlling Delay Feedback has Min at “10%” and Max at “50%”. The
feedback sweeps only from 10% to 50 as the pedal is moved, even though this parameter’s range actually
extends from -100% to +100%.
Start, Mid, End, Slope, Scale, and Offset are used to create custom curves which remap the relationship
between the modier source and the value of the target parameter. On the Modify page, a graph shows the
relationship between the source (x-axis) and the parameter (y-axis). A dot on the graph tracks the source.
The default settings (rst graph below) create a 1:1 linear relationship (the blue line) between the source and the
parameter. As the source changes, the parameter tracks it directly.
The second two graphs below show examples of the kinds of curves you can create using Slope, Scale, and
Offset. The pages which follow contain more examples.
Attack and Release: These values apply “damping” to slow the rate at which the target parameter value “chases”
the source. Attack determines the rate of change as the source is increased, and Release controls the rate as
it decreases. At low settings, these add just a little smoothing. Try settings of about 10 ms to “relax” a pedal or
to ease the edges of a square LFO to eliminate clicks and pops. Higher settings can cause sound changes to be
extremely slow and gradual (up to ten seconds!).
Auto-Engage works with Off Value to make the entire block turn ON or OFF automatically whenever the source
controller is moved. This is typically used with a Wah pedal so you don’t need a toe switch. (Follow the example
on p. 60 and set AUTO-ENGAGE to “SLOW POS” to try it out!) Find more about Auto-Engage on p. 64.
PC Reset sets the value of an external source when a preset rst loads. This allows you to override the actual
position of an external controller until it is moved or updated. Here’s how it works: after applying the modier, exit
back to the Edit page where that parameter appears. Notice that its value can be edited as usual. If PC Reset is
ON, the value you set and then save will be used from when the preset loads until the external controller source
sends a new value to the modier.
Update Rate controls how often the modier is refreshed. The setting of slow is actually very fast, and ne for
the vast majority of applications. The faster settings require additional CPU but provide even smoother sound
performance when ultra fast changes are required (while using a fast LFO for instance). Check this setting if you
think you hear “zipper noise” while a modier is in use.
Source
Parameter