For educators

Your lecture notes, narrated.

Turn the LaTeX you already write into audio for revision, flipped classrooms and lecture companions — read the way you would read it, because you check every reading first.

What you can do

Start from your source

Paste LaTeX or upload .tex files. Chapters and sections become passages you can narrate one at a time.

Say it your way

Prefer “x sub n” to “x n”, or “the derivative of f” to “f prime”? Edit any reading; Evaria keeps it tied to its source.

Two modes for two jobs

Standard for quick explanations and worked examples; Studio for long chapters and proofs, delivered by email when ready.

How it works

Check the reading. Then render.

  1. Import a chapter of your notes.
  2. Read the spoken script beside the source and fix anything you would say differently.
  3. See the credits and estimated minutes for Standard and Studio, then render.
  4. Share the MP3 with your students, with captions for your video platform.

Calculus Made Easy, chapter I

Studio · 0:59
Read the transcript

To deliver you from the Preliminary Terrors

The preliminary terror, which chokes off most fifth-form boys from even attempting to learn how to calculate, can be abolished once for all by simply stating what is the meaning—in common-sense terms—of the two principal symbols that are used in calculating.

These dreadful symbols are: First, d, which merely means "a little bit of."

Thus d x means a little bit of x; or d u means a little bit of u. Ordinary mathematicians think it more polite to say "an element of," instead of "a little bit of." Just as you please.

But you will find that these little bits (or elements) may be considered to be indefinitely small.

Second, the integral sign, which is merely a long S, and may be called (if you like) "the sum of."

Thus the integral of d x means the sum of all the little bits of x; or the integral of d t means the sum of all the little bits of t.

AI-generated · MOSS-TTS 8BExcerpt from Silvanus P. Thompson, Calculus Made Easy (1914), chapter I — public domain. WAVProvenance

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