The most under-used study time in most people's week is the commute, the gym and the washing-up. Audio Tutor turns a PDF into a narrated lesson you can listen to during all of it — not a robotic page-by-page reading, but a restructured explanation that works as audio.
The AI first reorganises the document into a spoken-word script: an overview of what is coming, concepts explained in a logical order, deliberate recaps at the points where a listener needs them, and a summary at the end. That script is then narrated in a natural voice.
How to use Audio Tutor
- 1Upload the PDF you want to learn from.
- 2Choose a lesson style — a quick overview or a full walkthrough — and a voice.
- 3Generate the audio lesson and wait while the script is written and narrated.
- 4Listen in the browser or download the audio file for offline use.
Why a script beats text-to-speech
Reading a document aloud verbatim produces bad audio: figure references you cannot see, tables read as strings of numbers, and footnotes interrupting sentences. The script step rewrites for the ear — describing what a figure shows instead of pointing at it, and carrying structure through spoken signposting.
Listening as a second pass
Audio works best as reinforcement rather than first contact with difficult material. Read or summarise the document first, then listen on the commute. The repetition in a different modality is what makes it stick.
Accessibility
For dyslexic readers, people with visual impairments and anyone who simply retains more by listening, an audio version of a dense document is not a convenience but the difference between accessible and not.
Supported formats, limits and things to know
- Requires a text layer — OCR scans first.
- Long documents take longer to generate because the script is written before narration begins.
- Complex equations, code listings and detailed tables do not translate well to audio.
- Subject to the daily free quota; subscribers get higher limits.
Audio Tutor — frequently asked questions
Is this just text-to-speech?
No. The document is first rewritten into a spoken-word teaching script with an overview, ordered explanations and recaps, then narrated.
Can I download the audio?
Yes, so you can listen offline on a commute or at the gym.
How long does generation take?
It depends on document length, because the script is written before narration starts. A chapter typically takes a couple of minutes.
Does it work for maths or code?
Poorly. Equations, code and detailed tables are visual by nature. Use it for conceptual and narrative material.
Can it narrate a scanned book chapter?
Run OCR PDF on it first so there is text to work from.