Cadencii
Cadencii is a program that allows cross-importation of vocal MIDI, VSQ, UST, and VSQX files. It supports both UTAU and Vocaloid voice banks.
UTAU
UTAU or Vocal Synthesizer Tool UTAU is a voice-synthesis software developed by Ameya/Ayame and made for the Windows operating ...
VOCALOID
VOCALOID is a singing synthesizer. It uses synthesizing technology with specially recorded vocals of voice actors or singers. ...
eCantorix
ecantorix - Singing synthesis frontend for espeak