Audiobooks are the fastest growing format in publishing. Sales have doubled in the last five years, and authors who ignored audio a decade ago are now rushing to convert their backlists. Audible publishing guide content is everywhere, but most of it skips over the practical questions like how much it costs, how royalties really work, and what to do if you don’t have $5,000 sitting around for narration.
This post breaks down how to publish an audiobook on Audible through ACX, what your real options are at different budget levels, and what to expect from your first audiobook.
How Audible Publishing Works Through ACX
ACX (Audiobook Creation Exchange) is the Amazon-owned platform that produces audiobooks for distribution on Audible, Amazon, and Apple Books. Most self-published audiobooks get to market through ACX. The platform handles the legal contracts between rights holders and narrators, the audio file uploads, the quality checks, and the distribution.
Once your audiobook is approved through ACX, it appears on Audible, Amazon, and Apple Books automatically. You can also distribute through Findaway Voices for wider reach (Spotify, Kobo, Google Play, library systems), but ACX alone covers Audible’s massive listener base.
To use ACX you need to be a US, UK, Canada, or Ireland resident with the rights to your book and a way to produce the audio (a narrator, a studio, or both). The platform is free to join, and you only pay for production if you hire a narrator outside of ACX’s royalty-share option.
Setting Up Your ACX Account
ACX setup takes about 30 minutes. You create an account using your Amazon login, fill in tax forms and bank details, and claim your book by entering the ASIN or title. ACX verifies that you own the rights to the book by checking against KDP.
Once your book is claimed, you create a project for the audiobook version. You upload an audition script (usually 1 to 5 minutes from the book), set your production preferences, and decide how you want to find a narrator.
Finding a Narrator
This is the biggest single decision in audiobook production, and it shapes everything else about your launch.
Hiring a Pro Narrator
Professional narrators on ACX charge per finished hour (PFH) of audio. Rates range from $100 PFH for beginner narrators to $400+ PFH for top-tier voices. A 10-hour audiobook (about 80,000 words of source text) costs between $1,000 and $4,000 at average rates.
You post your audition on ACX with your script and a description of what you’re looking for (voice characteristics, accent, tone, target listener). Narrators audition by recording the script and submitting it. You listen, pick a narrator, and sign a contract through the platform.
Pay-for-production gives you full royalty (40% if you go non-exclusive, more on royalties below) and full control over the final product. The narrator delivers the files, you approve them, and the book goes to market.
Royalty Share
Royalty share is ACX’s option for authors who don’t have upfront production money. The narrator produces the audiobook for free in exchange for splitting royalties 50/50 with the author for seven years.
The catch is that royalty share contracts are exclusive to Audible. You give up the ability to sell on Apple Books, Kobo, Spotify, libraries, or anywhere else for the full seven-year term. For a book that does well on Audible, royalty share can be a good deal. For a book that would do better on non-Amazon platforms, it locks you out of significant revenue.
Royalty share also makes it harder to attract top narrators since they’re betting on your book’s success rather than getting paid for their time. You’ll see more auditions from newer narrators on royalty share projects.
Narrating It Yourself
If you have a strong reading voice, decent recording equipment, and the patience to learn editing, you can narrate your own book. This is most common with nonfiction and memoir, where the author’s voice adds something the book’s marketing can build on.
The full cost is your time plus equipment. A basic recording setup (USB microphone like the Audio Technica AT2020, acoustic treatment for your recording space, recording software like Audacity or Reaper) runs $200 to $600. Plan on three to five hours of work for every finished hour of audio when you’re new, less as you get faster.
Self-narration works well for some books and badly for others. Fiction with multiple character voices usually needs a pro. Conversational nonfiction often benefits from the author reading it themselves.
Audio Production Standards
ACX has strict technical requirements. Your finished files must hit specific levels for peak amplitude, RMS, and noise floor, with consistent levels throughout each chapter and proper room tone matching.
Files must be MP3 format at 192 kbps or higher constant bit rate, with each chapter as a separate file under 120 minutes. The opening and closing of each file must include 0.5 to 1 second of room tone before any audio starts.
If you’re hiring a pro narrator, they handle all this. If you’re recording yourself, plan to learn or hire an editor who knows ACX’s specs. Submitting files that don’t meet the standard means rejection and rework.
Royalty Options: Exclusive vs Non Exclusive
ACX gives you two royalty paths.
Exclusive distribution means your audiobook is only sold on Audible, Amazon, and iTunes. You earn 40% royalty on every sale. The contract runs seven years and renews automatically unless you opt out.
Non-exclusive distribution means you can sell anywhere. You earn 25% royalty on ACX sales. The lower royalty is the price you pay for the right to distribute elsewhere.
The math depends on your book. If your book primarily sells through Audible (which is common for genre fiction), the 40% exclusive royalty often wins. If your book has room to grow on other platforms (especially nonfiction, which sells well on Spotify and through library systems), the 25% non-exclusive with wide distribution often wins.
For most first-time audiobook publishers, starting with exclusive ACX distribution is the simpler path. You can switch to non-exclusive later if the data suggests it’s a better fit.
Pricing on Audible
You don’t set the price on Audible. Audible sets it based on length, falling into tiers from $7 to $35. A 5-hour audiobook might price at $14.95. A 15-hour audiobook might price at $24.95.
The pricing tier matters less than it seems. Most Audible buyers use credits from monthly subscriptions, so they’re not price-sensitive in the same way ebook buyers are. The book either fits what they want to listen to or it doesn’t. List price affects what you earn per non-credit sale but doesn’t drive most of the volume.
What does matter is the credit price your audiobook commands, since this is how most listeners decide what to download. A book that’s worth one credit is much easier to convert than one that’s listed for cash purchase only.
Marketing Your Audiobook
Audible has its own promotional mechanics. You get 25 free promo codes per book when you publish through ACX, which you can give to reviewers, podcasters, or influencers to drive early reviews and word of mouth.
Audiobook reviewers exist as a category on their own, separate from ebook ARC readers. Sites like AudaVoxx, Audiobook Reviewer, and various Goodreads groups focus specifically on audio. Reach out to these reviewers with your promo codes for the highest-quality reviews.
Cross-promote with your ebook. Mention the audiobook in your ebook description and back matter. Mention the ebook in the audiobook description. Listeners who like the audio often buy the ebook to keep, and ebook readers who get hooked sometimes upgrade to audio for second reads.
Audible’s Whispersync feature is also worth optimizing for. If you publish both ebook and audiobook through Amazon, you can enable Whispersync, which lets buyers of one format get the other at a discount. This drives bundle sales that you wouldn’t otherwise capture.
Audible publishing guide content can get technical fast, but the basics are manageable. Pick your production path. Find a narrator who fits your book. Hit the technical standards. Choose your royalty model based on where your readers actually are. And keep marketing the audio version separately from your other formats. Audio is its own market with its own listeners, and authors who treat it that way tend to earn far more from audio than authors who treat it as an afterthought.
One thing worth keeping in mind as you start is that audiobooks build slowly. Unlike ebooks, where a launch week can drive most of a book’s lifetime sales, audiobooks tend to earn consistently over years. A book that sells modestly in audio for its first six months might still be earning steady royalties three years later as listeners discover it through Audible recommendations and series read-through. The investment in production pays back over a longer horizon than ebook spending, which means it’s worth being patient with the returns rather than judging the audiobook on its first quarter alone.
