I think MikeB is talking about how you could get your existing recordings into SAB. But if I understand your question correctly, you’re wondering about splitting up your chapter-level WAV files into smaller WAV file clips (one per “block” in HearThis - where a block is typically a single sentence). There is no automated process that I know of to help you do this. If it’s a relatively small amount of audio, with some patience, you could use audio editing software (such as Audition or Audacity) to split it up manually. (There might be a somewhat more automated way to split it wherever you have marked verse breaks, but unfortunately this will probably not correspond perfectly to sentence breaks.)
It’s also possible that you could come up with an approach using Aeneas to identify alignment between the text and audio, and then apply some process that would split it up. I certainly think that would be technically possible, but I don’t know of any single software solution that currently exists to achieve it. I will consult with my local Aeneas expert when I get a chance to see if he has any more concrete ideas.
If you do come up with an approach, I think I can tell you how to name the files and where to put them so that HearThis can see them. (Even that can get a little complicated, because of the settings in HearThis that allow you to skip recording of section heads or other fields that you don’t want to record.
Unless you come up with a good automated approach, if it’s a lot of recorded material, you might be better off to live with the hassle of having stuff in HearThis appear to be unrecorded, and manually copying in the recorded chapters into the correct folder structure after publishing from HearThis.
I’m not sure I’ve been very much help, but please reach back out if you need to. (We might need to establish a live connection outside of the forum to more fully understand your specific needs.)