Can I convert an entire textbook?

Yes — upload individual chapters or the full book. We support PDFs up to 500 pages on Pro plans.

Does it handle equations and formulas?

Our AI reads common math notation aloud. Complex equations are described in plain language.

We offer 6+ natural AI voices including male and female options with different accents.

Yes, from 0.5x to 2x speed. Many students prefer 1.25x–1.5x for efficient studying.

Turn dense textbook chapters into clear, listenable audio you can study anywhere.

Passive Study Time — Listen to chapters during commutes, workouts, or chores — turn dead time into study time.
Better Retention — Dual-coding theory shows combining reading with listening improves memory by up to 40%.
Reduce Eye Strain — Give your eyes a break from screens while still making progress through dense material.

Upload Your Textbook PDF — Drag and drop any textbook chapter or full PDF into VoiceBrief.
AI Extracts the Text — Our parser handles complex layouts, tables, and multi-column formats.
Generate Audio — Choose a natural AI voice and convert the full text or an AI summary.
Listen Anywhere — Stream online or download MP3 files for offline listening on any device.

Natural AI Voices — Multiple voices that sound human — not robotic. Perfect for long study sessions.
AI Summaries — Get a concise summary of each chapter so you can review key concepts quickly.
Quiz Generation — Auto-generated quizzes help you test your understanding after listening.

Can I convert an entire textbook?: Yes — upload individual chapters or the full book. We support PDFs up to 500 pages on Pro plans.
Does it handle equations and formulas?: Our AI reads common math notation aloud. Complex equations are described in plain language.
What voices are available?: We offer 6+ natural AI voices including male and female options with different accents.
Can I adjust playback speed?: Yes, from 0.5x to 2x speed. Many students prefer 1.25x–1.5x for efficient studying.