| Form Factor | Part |
| Signal Path | Analog Hardware |
| Notes | Formant singing (called "formant synging" in the documentation). This board was the predecessor to the Vocaloid software and was only available in Japan. |
| Form Factor | Part |
| Signal Path | Analog Hardware |
| Notes | Formant singing (called "formant synging" in the documentation). This board was the predecessor to the Vocaloid software and was only available in Japan. |