As a sequel to my previous video based on feedback and other things I've learned since making the first tutorial a year ago.
Here are those hiragana, their corresponding sounds, and the corresponding visemes:
あ = "ah" = aa
い = "ee" = ih
う = "oo" = ou
え = "eh" = e
お = "oh" = oh
As always, if you find an error with this or with part of the process, let me know in the comments so it can help someone else out or can be aggregated into the description or used in a subsequent tutorial video.