Review Text-to-Speech overview.
If your language is written in Latin script and is written in a way that is closer to one of Bloom's TTSs languages, do these steps to tell Bloom to use that TTS language instead of Esperanto:
If you do not know your language code, open the Settings dialog box, Languages tab. Language codes appear there in parenthesis after the language name.
Use a text editor, such as Notepad, to create an empty file.
Use the Show in File Explorer command to find the collection folder (not a book folder), and then save the file there with this filename convention:
convert_[sourceLangCode]_to_[targetLangCode].txt
For example, if your language "xyz" is written/pronounced in a way that is closer to Russian than Esperanto, tell Bloom to use Russian TTS by saving an empty file named convert_xyz_to_ru.txt in the collection folder.
Just by being there, it will tell Bloom to use the Russian TTS language instead of Esperanto.
This file is used when you use the Talking Book Tool to record all the text in a text box in one reading, and then adjust timings by sentence for highlighting.
If this does not work, delete this file and create a transliteration rules file instead.