Turn your novel into a studio-quality audiobook
Audibloom converts your PDF, EPUB, or manuscript into a chaptered, ACX-ready M4B audiobook — with multi-character AI voices, pronunciation control, and per-chapter regeneration. From manuscript to Audible in an afternoon.
- 01Prologue: The Orchard at Night12:41 rendered
- 02Eleanor finds the letter38:12 rendered
- 03The harbor master speaks24:09 rendering
- 04A bargain at dawn47:33 queued
- Studio · AriaNNarrator1284 lines
- Studio · JuneEEleanor412 lines
- Studio · RonanHHarbor Master198 lines
Why Audibloom
Everything you need to ship an audiobook — nothing you don't
We don't try to be a video tool, a podcast tool, and an audiobook tool at once. Every feature exists for one reason: getting your book to a distribution-ready M4B.
Drop in PDF, EPUB, DOCX, or TXT
Audibloom auto-cleans the manuscript, drops headers/footers, restores paragraph flow, and detects chapters from the table of contents — no formatting work required.
Multi-character narration that actually casts
Our LLM pipeline reads your novel, identifies every speaking character, and assigns each a distinct voice. Drag-and-drop to recast anyone in seconds.
Pronunciation dictionary
Lock proper nouns, place names, and made-up words to your preferred pronunciation. Defined once, applied across the entire book.
Per-chapter regeneration
Edit one paragraph, regenerate just that chapter — not the whole book. Cached chapters stay untouched, so iteration is fast and cheap.
ACX-ready M4B output
Industry-standard chaptered M4B with embedded cover art, LUFS-normalized to ACX targets (–23 to –18 dB), peak limited, and silence-padded — Audible/Spotify-ready.
Optional voice cloning
Studio plan: clone your own voice from a 30-second sample, then narrate every book in your catalog in your voice — without recording 8+ hours of audio.
How it works
From manuscript to ACX-ready audiobook in four steps
Upload your manuscript
Drop in a PDF, EPUB, DOCX, or TXT file. We auto-detect chapters and split dialogue from narration.
Cast your voices
Pick a narrator and assign distinct voices to each character. Preview any line before you commit.
Generate & preview
Hear the first 5 minutes free. Re-render any chapter without re-rendering the whole book.
Export ACX-ready M4B
Get a chaptered M4B with cover art, plus per-chapter MP3/WAV — ready for Audible, Spotify, Apple Books, Kobo.
How we compare
Built for audiobooks, not voiceovers
General-purpose voice tools stop at the MP3 file. Done-for-you services lock you into 24-hour turnarounds and per-book pricing. Audibloom gives you both: self-serve speed + audiobook-grade output.
| Capability | Audibloom Author Pro | ElevenLabs Voice studio | Murf AI Voiceover suite | TomeVox Done-for-you |
|---|---|---|---|---|
| PDF / EPUB / DOCX / TXT input | ||||
| Auto chapter detection | manual | |||
| Multi-character casting (auto) | manual | manual | ||
| Pronunciation dictionary | ||||
| ACX-compliant mastering | ||||
| Chaptered M4B export | ||||
| Per-chapter re-render | manual | manual | ||
| Voice cloning | Studio | |||
| Self-serve in minutes | ||||
| Per-book pricing option | $29 | $49–99 |
Comparison reflects publicly listed plans as of Audibloom's research date and is updated quarterly.
Pricing
Plans built around how authors actually publish
Subscribe by the month if you ship audiobooks regularly. Pay once if you don't. Either way, M4B export and ACX-ready mastering are available — without enterprise pricing.
Free
See how your book sounds in two minutes.
5 minutes / month
Try free- 5 minutes of generated audio
- Upload PDF / EPUB / TXT
- 6 starter voices
- MP3 download (watermarked)
- M4B export
- Multi-character narration
Creator
Short stories, blogs, and serial chapters.
2 hours / month
Start with Creator- 2 hours of generated audio
- MP3 export, no watermark
- 20+ standard voices
- Auto chapter detection
- M4B export
- Multi-character narration
Author Pro
For self-publishing a full novel on Spotify, Apple Books, Kobo.
10 hours / month
Start with Author Pro- 10 hours of generated audio
- ACX-ready M4B export LUFS-normalized, chapter markers, cover art
- Multi-character narration auto character detection + per-character voice casting
- Pronunciation dictionary IPA + per-book name overrides
- Full chapter re-generation
- MP3 + WAV per chapter
- Voice cloning
Studio
For prolific authors and small presses publishing across multiple titles.
30 hours / month
Talk to Studio team- 30 hours of generated audio
- Everything in Author Pro
- Voice cloning 3 cloned voices, 5–60s sample
- Batch projects Run 5 books in parallel
- Commercial distribution license
- Priority render queue
Per-book Pack
One-and-done. Pay only when you have a book to ship.
- Up to 12 hours of audio per book
- ACX-ready M4B export
- Multi-character narration
- Pronunciation dictionary
- No subscription, no monthly cap
FAQ
Questions, answered
How is Audibloom different from ElevenLabs or Murf?
ElevenLabs and Murf are general voice generation tools — they output MP3 chapter by chapter and leave you to assemble, master, and package the file. Audibloom is purpose-built for audiobook production: chapter detection, character casting, pronunciation control, ACX-compliant mastering, and M4B export are all in the pipeline. You get a distribution-ready audiobook, not raw audio clips.
Can I publish the audiobook on Audible / Spotify / Apple Books?
Yes. The Author Pro plan and above produce ACX-compliant M4B files (LUFS-normalized to –23 to –18 dB, peak-limited, with proper chapter markers). These meet the technical requirements for Audible (via ACX), Spotify Audiobooks, Apple Books, Google Play Books, Kobo, and Findaway Voices. You retain 100% of royalties.
How accurate is the multi-character casting?
Audibloom uses a large language model to read every paragraph, infer the speaker, and tag dialogue versus narration. You can override any assignment in the editor before generation. Most novels need only a few manual corrections after the auto-cast pass.
What if I need to fix one paragraph after the audiobook is done?
Edit the text and regenerate just that chapter — Audibloom caches every other chapter's audio. You only pay for the seconds you re-render.
Do you support voice cloning?
Voice cloning is available on the Studio plan. Upload a 30-60 second clean sample of your voice, and Audibloom will narrate any book in your voice. Cloned voices include built-in safeguards: you must own the voice or have written consent.
How long does a full audiobook take?
A typical 80,000-word novel produces ~9 hours of audio and finishes in 30–60 minutes on the Author Pro queue (priority queue on Studio is faster). Compare that to 4–8 weeks for a human narrator.
What languages are supported?
English, Spanish, French, and German at launch. Italian, Portuguese, Japanese, and more on the public roadmap.
Do I keep the rights to the audiobook?
Yes. All paid plans include full commercial distribution rights. You can sell, monetize, or license your AI-narrated audiobook on any platform.
Get early access
Be first when Audibloom opens
Join the waitlist for early-bird pricing, your free first-chapter preview, and a private Discord channel for indie authors.
No spam. Unsubscribe in one click. We never share your email.