got all of the audio alignment, translation, and asset generation working on my gaming computer. pretty happy with the pipeline, except for the sometimes subpar translations.
if anyone is interested in the details I am happy to write them up!
if you are into language learning, I would love to hear if this could be useful to you!
I've been meaning to learn Spanish, and this looks super useful.
Would love to learn more about your pipeline [selfishly, I was looking to build (free) ebooks -> audio for my own purposes as a side project]
What were the most challenging aspects? What assumptions failed / held true? Any experiences to share? Thx
went through quite a few iterations of aligning text to speech. found that ai transcription was really good most of the time but would hallucinate quite a bit towards the start and end of books. which I think might be related to those models being partially trained on audiobooks, and only having the book text itself, without any of the intro or credits.
in the end I landed on extracting text from ebooks, using rule based and language specific segmentation, and espeak based alignment. pretty basic, but it worked wonders in terms of reliability and accuracy.
if you are looking to generate audio from ebooks this is probably not too helpful. it is something I tried to avoid. something about learning a languages from generated audio didn't sit right with me haha.