Adds a vowel character to the sound, making it similar to a human voice.

| Parameter | Value | Explanation | 
|---|---|---|
| Drive Sw | OFF, ON | Overdrive on/off | 
| Drive | 0–127 | Degree of distortion | 
| Vowel1 | a, e, i, o, u | Selects the vowel. | 
| Vowel2 | a, e, i, o, u | Selects the vowel. | 
| Rate (sync sw) | OFF, ON | If this is ON, the rate synchronizes with the tempo of the rhythm. | 
| Rate (Hz) | 0.05–10.00 [Hz] | Frequency at which the two vowels switch | 
| Rate (note) | Note | |
| Depth (*1) | 0–127 | Depth of the effect | 
| Input Sync Sw | OFF, ON | LFO reset on/off | 
| Input Sync Threshold | 0–127 | Volume level at which reset is applied | 
| Manual | 0–100 | Point at which Vowel 1/2 switch | 
| Low Gain | -15–+15 [dB] | Gain of the low range | 
| High Gain | -15–+15 [dB] | Gain of the high range | 
| Pan | L64–63R | Stereo location of the output sound | 
| Level | 0–127 | Output Level | 
*1: This parameter corresponds to MFX Ctrl. For details, refer to “Controlling the MFX with the PAD EDIT [1] [2] Knobs (MFX Ctrl)”. 
*1: This parameter corresponds to MASTER EFFECT CTRL. For details, refer to “Controlling the MASTER EFFECT with the MASTER EFFECT Knob (MASTER EFFECT CTRL)”.