Yes, they are two flavours of Vocalizer-Expressive for NVDA.
One from Tiflotecnia and other from CodeFactory.
Both use the Vocalizer-Expressive from Nuance.
Nuance itself does not sell any voices for NVDA.
Best regards,
Rui Fontes
Tiflotecnia, Lda.
Às 14:14 de 10/12/2018, Don H escreveu:

I see, if I am reading it correctly, that there are two versions of Vocalizer Expressive voices for NVDA.  One from Code factory and one from Nuance.  Are there differences making one better than the other?
Thanks