How much input audio would you need to produce audiobook quality? Hint Hint...
How long did you train the models for each speaker, and what hardware were you using?
It was fine tuning, so the process was a lot faster than I originally anticipated. I'd say it was between 36 and 72 hours for each voice. I have been working on a gradient notebook provided by Paperspace, which guaranteed me A6000 instances (48GB GPU RAM) at a reasonable flat rate. I discovered them after being repeatedly frustrated by the random allocation of GPUs on colabs pro+ plan.