Well, I exhausted my credit allowance of 100,000 characters with Vocloner... mainly because I had to re-generate same sentences (or portions of them) multiple times before I could get a USABLE output with semi-correct intonations (despite clear instructions)... sigh...
These tools need like 3 or 4 'tries per sentence' or something similar to account for these issues.
These tools need like 3 or 4 'tries per sentence' or something similar to account for these issues.