Choose what you need to understand today
Select a passage with a clear purpose: a definition, a central argument, or an explanation you want to examine carefully. Open the PDF in FolioTone and view its heading, illustrations, and layout first. Knowing where a passage belongs helps you avoid hearing sentences detached from the surrounding material.
Do not begin by converting the whole textbook merely because you can import its file. A manageable section leaves time to inspect the result and decide whether listening suits this document. Listening is an alternative reading workflow, not a guarantee that every person will understand or remember more than by reading visually.
Compare Text with the original page
Inspect Text for sentence order, specialist terms, and meaningful symbols. If the document is scanned, use OCR and review the result before listening. Tables, equations, and diagrams need visual attention on the original page rather than an assumption that every relationship will remain clear when read as a sequence of words.
Choose Listen from page start for a fresh section or Listen from here after reading part of it yourself. Include the introductory sentence and any definitions needed for context. A sample that preserves the complete idea is more useful than a short isolated sentence whose subject is no longer clear to the listener.
Match the voice to the study material
Use a Vietnamese voice for Vietnamese writing and Clear English for an English passage. Audition foreign terms appearing inside another language before deciding how to prepare the text. Do not treat the app as a system that automatically selects the right language voice for every sentence in a bilingual book.
Keep FolioTone in the foreground while it generates speech, then follow visually or try a listening-only pass. Return to the source PDF when you need to check a detail. Audio offers another way to encounter the material; it is not an automatically written explanation or a summary prepared in your place.
End with a section you can revisit
For a later review, prepare the inspected audio and export WAV/M4A if useful, within the limits displayed in the app. Give the file a topic and content-range label so you can find the definition tomorrow without opening several nearly identical exports just to identify the passage you wanted.
Gentle, Warm, and Clear English have no daily character quota on Free; OCR, preparation, and export retain their separate limits. Build a routine that fits those boundaries. Pro can remove corresponding limits, while the usefulness of the session still depends on how deliberately you select and check the source material.
TRY IT WITH YOUR OWN WORDS
Your next chapter starts here.
FolioTone works on iPhone and iPad with iOS 18 or later. Voice, OCR and export limits depend on your Free or Pro plan; check the app for current limits.
Get FolioTone on the App StoreCompare Free & Pro