Seamless preset change means that there's no interruption or noise when changing between presets. Effect spillover means that Delay and Reverb tails continue into the next preset, or after the effect is bypassed.
The G-Force's ability to have effects routed in any order means it cannot always achieve seamless preset changes and/or effect spillovers. For best results try to use patches with similar routings and sub-algorithms.
Even a seamless preset change will appear abrupt if sound levels are different between the patches. Because of this it's important to choose a Mute mode that keeps the levels consistent.
If you must play during a preset change and the presets you change between are radically different there may appear "sound artifacts" (strange noises). To avoid such noises the G-Force offers an Effect Muting feature in the Utility display, software version 1.12 and later. When enabled this will mute the sound for a moment during preset changes. The Effect Muting is a global setting that it will affect all presets (see also "Preset Change" in the manual addendum that you can download from TC Electronic).
Some older MIDI boards are said to make the G-Force to mute its effects during preset change, even when the G-Force Effect Muting is disabled. You can rule out this by comparing the muting when changing preset from the MIDI board and from the G-Force front panel.
You can also use an expression pedal linked to the parameters that you want to change, and instead of switching preset just modify the effect Mix and other parameters with the pedal. This gives you the added benefit of morphing smoothly between two or three settings within the same preset (Greg Scott gets credit for this idea).
In order to make a Delay or Reverb tail fade out into the following preset you should add a bypassed version of the Delay or Reverb effect block with identical Sub-algorithm, Feedback and Mix settings in the following patch. This is easy to do by importing the effect block from the other preset (see the manual on how to do this). The effect block's Mute mode should be set to Fx In or Input in both presets.
You may find that the hard thing is actually not to get spillover if you use the same effect in both the old and new preset (Edwin discovered this). One way to prevent spillover is to switch preset twice: first to one preset without the effect, then to a third preset with the effect in it. This way the middle preset will kill the tail from the first.
Copyright © 1999-2016 Christian Jacobsson.