sforzando 1.9.7.1
sforzando is a free, highly SFZ 2.0 compliant sample player.
Plogue software
DlSoftware247 lists 3 Windows programs by Plogue, mostly Audio, System Utilities software. The most popular are sforzando, Plogue chipspeech, Plogue AlterEgo.
Plogue chipspeech v1.771
Vintage speech synthesizer
Plogue AlterEgo v1.571
real-time singing synthesizer vsti