The vowel is selected by sending a CC3 MIDI message. The following table shows known vowels for CC values:
| CC value | Vowel | Example |
|---|---|---|
| 0–7 | Random | |
| 8–15 | ɑː | stAr |
| 16–22 | aɪ | bUY |
| 23–30 | æ | pAt |
| 31–37 | ə | thE |
| 38–45 | ɔː | stOre |
| 46–52 | ɔɪ | cOY |
| 53–60 | ɒ | pOt |
| 61–67 | ʌ | cUt |
| 68–75 | uː | zOO |
| 76–82 | iː | frEE |
| 83–90 | ɪə | hEAr |
| 91–97 | eɪ | strAY |
| 98–105 | ɛə | stAIr |
| 106–112 | ʊə | cUre |
| 113–120 | m (nasal sound) | (as in mmm) |
| 121–127 | None |