Stage 01 of 5Upload your book
Start with the manuscript you already have.
Upload your book and get a free Book Check: chapters, characters, names to pronounce, and what the finished audio will cost.
The Book Check is free for one book.
Audiobook Production
Turn your manuscript into a finished audiobook.
Marvox reads your book, builds the cast, produces the voices, checks the audio, and hands you a finished audiobook.
CharacterOS knows your characters. VoiceDNA keeps their voices. Director lets you shape every line.
The Production Line
Five steps from manuscript to audiobook.
Stage 02 of 5Meet your cast
Every character gets the right voice.
CharacterOS understands who your characters are, what they know, how they relate, and who's speaking. VoiceDNA keeps each voice consistent through the book.
You review and approve every casting choice.
See how it worksStage 03 of 5Direct the performance
Tell the actor how you want the line.
Director lets you ask for a line angrier, softer, or slower, and it's re-recorded in the same voice. Names are said your way, every time.
Re-directing a line is included with your book.
Listen to samplesStage 04 of 5Check the audio
Marvox listens back for mistakes.
It checks for missing words, cut-off lines, misread names, and volume jumps, then shows you what to fix before you publish.
You listen and approve every chapter.
See what's includedStage 05 of 5Download your audiobook
Download a finished audiobook, ready to publish.
Get your chapters as MP3 and a single M4B, with cover, metadata, and a quality report, plus a step-by-step checklist for Spotify for Authors.
You keep your accounts and your rights.
Meet the cast
Every character keeps their voice.You direct the performance.
Marvox matches each character to a voice and holds it from the first chapter to the last. Hear the duel’s two leads, then give Athos a note.
Athos
The musketeer, waiting on his seconds
“I have engaged two of my friends as seconds; but these two friends are not yet come, at which I am astonished, as it is not at all their custom.”
D’Artagnan
The newcomer, one day in Paris
“for having only arrived yesterday in Paris, I as yet know no one but Monsieur de Tréville, to whom I was recommended by my father, who has the honor to be, in some degree, one of his friends.”
Direct the scene · Athos, one line, three notes
“You know no one but Monsieur de Tréville?”
Note: colder, suspicious, measuring him
Real retakes from Marvox’s Director, rendered October 4, 2026. Same character, voice, and words; only the note changed. You hear every take before you keep it.
Who it's for
Start where your work starts.
One workflow, different doors. Start where your work starts: writing, reading, directing scenes, or running a studio.
For WritersAuthors turn their book into audio.Upload the manuscript, approve the cast, and produce the audiobook with your characters kept straight.For ReadersReaders can ask the book questions.Chat with characters and ask about the story. Answers are drawn from the manuscript.For Scene TeamsCheck a scene before you record it.Pick the characters, set the direction, and catch continuity problems before the audio is made.For StudiosPublishers get books produced title by title.Send rights-confirmed books. We produce each one with casting, direction, quality checks, and a verified package.
Built responsibly
The honest comparison
A studio production, without the studio bill.
Studio narrationMarvox
- What it costs
- Studio narrationAbout $300–$400 per finished hour once narration and post-production are both paid. A 10-hour novel: roughly $3,000–$4,000.
- MarvoxOne Production Pass per book: $79, one time. The whole book's audio is included, up to 12 finished hours.
- Who performs
- Studio narrationUsually one narrator voicing every character.
- MarvoxA cast: each character matched to a voice, held from the first chapter to the last.
- Your direction
- Studio narrationGiven in the booth, before the session ends.
- MarvoxAny line, any time. Hear the retake before you keep it.
- When you revise
- Studio narrationChanged passages go back to the studio.
- MarvoxRevision-impact checks show what a manuscript change touches before you re-produce.
- What you walk away with
- Studio narrationFinished audio files.
- MarvoxA retail-ready package with a guided publishing checklist. Your accounts, your rights.
Studio rates from ACX, Audible’s production marketplace: Money Talks: Paying, and Getting Paid, For Your Audiobook. Rates vary by narrator and producer.
Simple pricing
Priced like a book, not a subscription.
Check any manuscript for free. One Production Pass covers a whole book, up to 12 finished hours, and re-directing a line is free.
Book Check
Freefor one book
See what your book needs before you spend anything.
- Manuscript check and cast preview
- An early chapter in full cast, free (up to 6,000 words)
- A whole-book estimate; production stays locked
Production Pass
$79per book, one time
Produce the whole book in full cast, check it, and download it ready to publish.
- The whole book, up to 12 finished hours
- 25% extra for corrections, plus Director re-takes
- Casting, pronunciation, quality checks, and the MP3/M4B package
StudioEarly access
Custom
A managed production pilot for publishers. Send us rights-confirmed books and we produce them with you, title by title.
- Casting, direction, and quality checks on every title
- A verified delivery package for each book
- Production status and measured cost per title
Straight answers.
- Can I hear my own book before I pay?
- Yes. The free Book Check produces an early chapter of your own manuscript in full cast (up to 6,000 words), alongside the production audit, the cast preview, and an estimate of what the finished audio will cost.
- What does the free Book Check include?
- One book: a manuscript check, a preview of your cast and chapters, an early chapter in full cast (up to 6,000 words), and a production estimate. Producing the whole book needs that book's Production Pass.
- What does a Production Pass include?
- $79, one time, for one book. It covers the whole book up to 12 finished hours, 25% more for corrections, Director re-takes, casting and pronunciation tools, quality checks, and the MP3/M4B publishing package. It's not a subscription.
- What if my book runs longer than 12 hours?
- Extra finished minutes are $0.10 each, and you see the price before anything is charged.
- What happens when I revise my manuscript?
- Revise the source and review the affected scenes and lines before producing a new audio version. The Director keeps your line notes and saved takes visible as you work.
- Does Marvox publish to Spotify for me?
- No. Marvox gives you the finished package and a step-by-step checklist for Spotify for Authors. You upload it from your own account and keep your rights.
Your next audiobook is already written.
Start with the free Book Check and hear your book before you spend anything.