| Morph (P1) | Controls the transition from source 1 to source 2. |
| Bands | Just how many bands should SFX use. Less Bands means less math, but you lose out on accuracy. |
| Steps | SFX does a transformation every sample-values. Lower values mean better quallity butlonger calculation. Steps can no be bigger than the half of the number of bands. |
| Window (W1) | what windowfunction to use |