This section controls the filter to alter the sound of the tone.

| Controller (Parameter) | Value | Explanation |
|---|---|---|
[MODE] button |
HPF, BPF, LPF | Selects the TVF type. |
| [CUTOFF FREQ] slider | 0–100 | Specifies the cutoff frequency. This gives the sound a more mellow feel, by removing frequency components that are higher than the cutoff frequency. |
| [RESO] slider | 0–100 | Increasing the value emphasizes the frequencies around the cutoff frequency for a more unusual sound. Excessively high settings can produce oscillation, causing the sound to distort. |
| [ENV] slider | -50–50 | This sets the intensity of the TVF envelope. When the value is higher, the filter produces greater change. Setting this to a negative value inverts the envelope’s shape. |
| [KEY FOLLOW] slider | -100–150 (%) | Changes the cutoff frequency according to the keys you play. When this is set to a positive value, playing notes above C4 (middle C) on the keyboard increases the cutoff frequency the higher you go. When this is set to a negative value, the cutoff frequency decreases. |
| [LFO SELECT] button | LFO1, LFO2 | Selects the LFO used to modulate the cutoff frequency. |
| [LFO] slider | -50–50 | Sets how much LFO1 and LFO2 modulates the cutoff frequency. |