You wrote the book. You published it. But right now, your story only exists in one format, while millions of readers are consuming books through their headphones on the commute, at the gym, and while doing dishes. Audiobooks are the fastest-growing format in publishing, and authors who skip audio are leaving an entire audience, and an entire royalty stream, on the table.
The good news: if your book is already on Amazon, you are closer to Audible than you think. ACX (the Audiobook Creation Exchange) is Amazon’s platform that turns published books into audiobooks distributed on Audible, Amazon, and Apple Books. This guide walks you through the entire process step by step, plus the mistakes that get audiobooks rejected, so you can go from print to mainstream audio the right way.
Quick Answer: To turn your book into an audiobook, claim your book on ACX using its Amazon listing, choose to narrate it yourself or hire a professional narrator (paying per finished hour or splitting royalties 50/50), produce audio that meets ACX’s technical standards, then submit for quality review. Approved audiobooks go live on Audible, Amazon, and Apple Books within a few weeks.
Step 1: Confirm Your Book Is Eligible and Claim It on ACX
ACX pulls directly from Amazon’s catalog, so your book must already be listed on Amazon as an eBook or paperback, and you must hold the audio rights. If you self-published through KDP, you almost certainly hold those rights. If a publisher released your book, check your contract before proceeding.
Create your free account at ACX, search for your book by title or ASIN, and click “claim.” You will confirm you own the audio rights, describe your book for potential narrators, and set up your account profile. This takes minutes, and it officially opens the door to Audible.
Step 2: Choose Your Distribution and Royalty Model
Before production begins, ACX asks you to make two decisions that shape your earnings for years:
- Exclusive distribution (40% royalty): your audiobook sells only through Audible, Amazon, and Apple Books. Higher royalty, and required if you want to pay your narrator through a royalty share.
- Non-exclusive distribution (25% royalty): lower royalty, but you keep the freedom to also sell through other audiobook platforms and your own website.
There is no universally right answer. Exclusivity maximizes per-sale income inside the biggest audiobook store on earth; non-exclusive maximizes reach. Many first-time authors start exclusive for simplicity, then reassess when the term allows.
Step 3: Decide Who Narrates Your Audiobook
Option A: Narrate It Yourself
Nobody knows your book’s voice better than you, and for memoirs and personal brands, an author-narrated audiobook can feel powerfully authentic. But be honest about the requirements: a quiet treated space, a quality microphone, consistent vocal stamina, and hours of editing per finished hour of audio. Great narration is a performance, not a read-aloud.
Option B: Hire a Professional Narrator Through ACX
ACX hosts thousands of professional narrators. You post your project with a short script sample, narrators audition, and you pick the voice that fits. Payment works two ways: pay per finished hour upfront (industry rates commonly run $100 to $400 per finished hour depending on experience), or offer a 50/50 royalty share where the narrator earns half your royalties instead of an upfront fee. Royalty share lowers your upfront cost to nearly zero, but it locks you into exclusivity and shares your income for years.
Option C: Use a Professional Audiobook Production Service
If auditioning narrators, directing performances, checking pronunciations, and QA-ing hours of audio sounds like a second job, that is because it is. A full-service production partner like Innovacia Publishers manages the entire pipeline: narrator casting, studio-quality recording, editing, mastering to ACX specifications, and upload, while you keep 100% of your royalties. For busy authors, this is the difference between an audiobook that launches this quarter and one that stays on the someday list.
Want your audiobook produced, mastered, and live on Audible without touching an audio file? Call Innovacia Publishers at (307) 218-7851 (USA) or (647) 692-0203 (Canada), or email Info@innovaciapublishers.com for a free audiobook consultation.
Step 4: Produce Audio That Passes ACX Quality Review
This is where most DIY audiobooks fail. Every file you upload must meet ACX’s audio submission requirements, and their quality team checks. The essentials:
- Each uploaded file contains a single chapter or section, opening with the chapter name.
- Consistent RMS levels between -23dB and -18dB, with peaks no higher than -3dB.
- A noise floor no louder than -60dB RMS, meaning a clean, hum-free recording space.
- 192kbps or higher MP3, constant bit rate, 44.1kHz sample rate.
- Opening and closing credits, plus a retail audio sample under five minutes.
- Room tone at the head and tail of each file, and no extraneous noises, mouth clicks, or uneven edits.
If those numbers look like a foreign language, do not worry, that is exactly what audio engineers are for. Failing QA means re-editing and resubmitting, which can add weeks to your launch, so getting the mastering right the first time matters.
Step 5: Design Your Audiobook Cover
Audiobook covers must be perfectly square (2400 x 2400 pixels recommended), unlike your rectangular eBook or paperback cover. A lazy crop of your existing cover often chops off titles and faces. A proper audiobook cover adaptation keeps your branding consistent across formats while looking sharp as a thumbnail next to bestsellers on Audible. Innovacia’s design team handles this conversion as part of production.
Step 6: Submit, Pass Review, and Go Live
Once your files are uploaded and your cover is set, submit the project for ACX quality review. Approval typically takes anywhere from a few business days to a few weeks. When approved, your audiobook goes live on Audible, Amazon, and Apple Books, with your audio edition linked directly to your existing book page, so every reader who finds your book now sees the audio option too.
Step 7: Market Your Audiobook Like a New Release
Going live is the starting line, not the finish. Treat your audiobook as a fresh launch: announce it to your email list, share the retail sample as social content, update your author website, and use promo codes to seed early reviews from audiobook listeners. Audio also revives your backlist, a book published years ago gets a brand-new sales channel and a brand-new audience the day its audiobook drops. Innovacia’s book marketing team builds audiobook launch campaigns that put your new edition in front of the listeners most likely to buy.
Frequently Asked Questions
How much does it cost to make an audiobook on ACX?
If you narrate and produce it yourself, your cost is equipment and time. Hiring a narrator typically runs $100 to $400 per finished hour, so a 6-hour audiobook commonly costs $600 to $2,400 in narration alone, plus editing and mastering. Royalty share removes upfront narrator fees in exchange for 50% of royalties. Full-service production bundles everything into one managed project.
How long does it take to publish an audiobook on ACX?
Production of a typical novel takes several weeks depending on narrator availability and book length, and ACX’s quality review adds days to a few weeks after submission. Most professionally managed audiobooks go from start to live on Audible within one to three months.
How many hours will my audiobook be?
A useful rule of thumb is roughly 9,000 to 9,500 words per finished hour. A 60,000-word book becomes approximately a 6 to 7 hour audiobook, which is a comfortable mainstream length for Audible listeners.
Do I keep my rights when I publish through ACX?
Yes. You retain ownership of your book and your audio rights. What you choose is a distribution agreement, exclusive or non-exclusive, which affects royalties and where else you can sell the audiobook during the term.
Can Innovacia Publishers handle the whole audiobook process for me?
Yes. From narrator casting and studio production to ACX-compliant mastering, square cover design, upload, and launch marketing, Innovacia Publishers manages the complete journey so your book reaches Audible without you touching a waveform. Email Info@innovaciapublishers.com to get started.
Your Book Deserves to Be Heard
Every month your book stays text-only, audiobook listeners are buying someone else’s story instead. ACX has made mainstream audio distribution accessible to every published author, and with the right production behind you, your audiobook can sound every bit as professional as a Big Five release. Whether you want guidance on one step or a done-for-you production from casting to launch, the team that helped you publish can now help the world hear you.
Ready to hear your book on Audible? Contact Innovacia Publishers today: (307) 218-7851 (USA) | (647) 692-0203 (Canada) | Info@innovaciapublishers.com. Free consultation, professional narration, and ACX-ready production from a team that lives and breathes publishing.