Aethel Audio
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Listening and reading together

Technical reading with text and voice in sync.

Many readers find it easier to follow a hard text when they hear it and see it at the same time. Aethel highlights each sentence as it is read, lets you change the speed precisely, and reads equations in words instead of skipping them.

Five books and an hour of narration free. No card needed.

The problem

Losing your place

Long paragraphs and dense pages make it easy to drift and re-read the same line.

Maths is usually inaccessible

Screen readers and generic voices often handle equations badly, which shuts readers out of STEM material.

One speed doesn't fit all

Some passages need to be slower than others.

How Aethel helps

Sentence highlighting

The current sentence is highlighted as it is read. Tap any sentence to continue from there.

Fine speed control

Choose any speed from 0.8× to 2.5×, in small steps.

Equations and figures in words

Formulas are spoken, and figures and tables get a short description.

Calm reading themes

A dark theme and a warm paper theme reduce glare during long sessions.

What you will hear

These are produced live by the same speech engine the app uses. Press Listen to hear them in your device's voice; in the app you choose a studio or ElevenLabs voice.

Algebra

x = (−b ± √(b² − 4ac)) / 2a

Aethel says

x equals the quantity negative b plus or minus the square root of the quantity b squared minus 4ac, over 2a

Probability

P(A|B) = P(B|A) P(A) / P(B)

Aethel says

P of A given B equals P of B given A, times P of A, over P of B

Get started in three steps

  1. 1Create a free account.
  2. 2Import a text-based PDF or EPUB.
  3. 3Choose a voice and a speed that suit you; Aethel remembers them.

Questions

Is Aethel a replacement for my screen reader?

No. It is a reading tool for long technical texts and works alongside assistive technology. If something in the app doesn't work with your setup, please tell us.

Do you work with disability services?

Yes. Accessibility offices and libraries can contact us through the partners page.

Guides

Compared with

Hear your own book this way.

Free to start: five books and an hour of narration, no card needed.