The problem with that is, the samples needed for realistic speech and singing are totally different. If you try to do both, one ends up substandard. Notice CeVIO sells song and talk banks separately, and almost no voices for the engine have both.
Also, honestly I don't think SynthV sounds very good. The engine noise seems to make female voices (save Chiyu) take on a weird gross nasally tone and the synthesizing doesn't seem to stand up to vocaloid/utau/cevio/sk.
This isn't really an opinion, but evaluting CeVIO on an update we won't see for years and years due to it's technical advancement isn't fair.
Also, honestly I don't think SynthV sounds very good. The engine noise seems to make female voices (save Chiyu) take on a weird gross nasally tone and the synthesizing doesn't seem to stand up to vocaloid/utau/cevio/sk.
This isn't really an opinion, but evaluting CeVIO on an update we won't see for years and years due to it's technical advancement isn't fair.