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Audiobook Production Services From Casting to ACX Delivery

More people listen to books on commutes, walks, and workouts than ever, and your readers may be among them. But an audiobook is not just your text read aloud. It needs the right voice, clean recording, and files that pass review. Our audiobook production services take you from script and casting through mastering, with delivery built to ACX and Audible requirements.

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Casting the right narrator for your book

The narrator decides whether a listener stays for chapter two. A warm, steady voice suits a memoir or self-help book, while a fantasy epic may need someone who can voice many characters distinctly. We write a casting brief from your book, your readers, and your preferences, then shortlist narrators and arrange auditions using a passage from your own text. You listen and choose, so the final voice is a decision you made yourself. Nothing is booked without your sign-off on a sample.

Pronunciation matters more than most authors expect. Before recording starts, we compile a guide for names, places, foreign words, and technical terms, and you confirm the correct readings. Narrators then record against that guide, which avoids expensive re-records later. If you want to narrate your own book, we can talk through the demands honestly, since a long recording takes stamina and a proper recording space. Authors often forget how many unusual names appear in a long book. A list prepared in advance saves narrator time and keeps your fee predictable.

Prepare your text for the ear before casting. Some material reads well on a page and badly aloud: long footnotes, tables, bullet lists, charts, and sentences that depend on italics. Nonfiction often needs a short note on what to do with each, such as describing a chart in a sentence or moving a list into the flow of speech. Dialogue tags can be trimmed when a skilled narrator already makes the speaker clear. We review the script with you so those decisions are made before recording, not during it.

Recording, editing, and mastering to ACX standards

ACX has firm technical rules, and files that miss them are rejected. Audio must be 192 kbps constant bitrate MP3 at 44.1 kHz. Overall loudness must sit between minus 23 and minus 18 dB RMS, peaks must stay below minus 3 dB, and the noise floor must be no higher than minus 60 dB RMS. Each chapter is its own file, with room tone at the start and end, and each chapter file must stay under 120 minutes. These numbers are checked by software, not by ear.

We record in a treated space, then edit out breaths, mouth noise, and stumbles, correct mispronunciations, and master the audio to those specs. Opening and closing credits are added, along with a retail sample. You get a proof listen of the first chapters and then the full book, with a chance to flag errors. Audible also needs square cover art at 2400 by 2400 pixels, which we can prepare if you need it. We correct any errors you flag before anything is submitted to ACX.

Consistency across hours of audio is the real challenge. A narrator's voice shifts with fatigue, mic distance, and time of day, and listeners notice when chapter ten sounds different from chapter one. Recording in measured sessions, keeping the same room and microphone setup, and matching levels during editing all help. We also listen to the whole book on ordinary headphones, not only on studio monitors, because that is how most people will hear it. Problems that studio gear hides often show up there.

Distribution, royalties, and keeping your rights

Once the files pass, you choose how to distribute. ACX offers exclusive terms for Audible, Amazon, and Apple, and non-exclusive terms that let you sell elsewhere, with different royalty rates for each. Other audiobook retailers and library platforms are reached through separate services. We explain how each option affects your income and your freedom, so the decision is yours and not a default. Also confirm whether your contract with any print publisher leaves audio rights with you, because some do not. Many authors discover this late, so check before you commission anything.

You keep your audio rights, and you upload under your own account, so payments go directly from the retailer to you. Narrators can be paid per finished hour up front, or you can use a royalty-share arrangement through ACX, where available. Neither guarantees sales, and we do not claim any. Costs, narrator availability, and timelines are agreed in writing before a single minute is recorded. On ACX, the retail price is set by Audible, not by you, so plan your income around that.

Plan the audiobook alongside the rest of your catalog. Link the audio edition to your print and ebook listings so shoppers can find all three, and mention it in your email list and on your author website. Ask the narrator whether they will help promote the release, which many do. Remember that your audiobook needs its own ISBN requirements only if a retailer asks for one, and ACX assigns its own identifier. A good audiobook can reach readers who would never open the ebook, but we cannot promise any level of sales.

How We Run A Audiobook Production Project

  1. 1

    Script and casting brief

    We read your manuscript for length and voice requirements, prepare a pronunciation list, and write a casting brief describing the tone and style your listeners will expect. Material that does not read well aloud, such as tables, is flagged for your decision.

  2. 2

    Auditions and selection

    Shortlisted narrators record a passage from your book. You listen, compare, and choose, and we confirm schedule and terms with the narrator in writing. If no audition fits, we widen the search before any money changes hands. Terms cover hours, pay, and deadlines.

  3. 3

    Recording and editing

    The narrator records chapter by chapter. We edit out noise and errors, check against the script, and send you early chapters to approve before the rest is finished, so any change of pace or pronunciation is caught before it repeats.

  4. 4

    Mastering and upload

    We master the audio to ACX levels, check each file against the technical checklist, and prepare cover art. You upload under your account, and we help with any rejection notes, then match the listing details to your other editions. Final files are yours to keep.

Who This Service Is For

Authors with an existing readership

Your print and ebook editions are doing well and readers have asked for audio. An audiobook reaches people who listen instead of reading, including commuters, drivers, and others who rarely sit down with a book. We make sure the audio matches your brand.

Memoirists and nonfiction authors

Your voice and story translate well to audio, and listeners often prefer it. We help you choose between narrating yourself and hiring a professional, and we arrange a test recording so you can judge before committing. A short sample recording shows how you sound.

Series and genre fiction writers

Audio fans binge series. A consistent narrator across your books builds loyalty, and we plan casting with the whole series in mind, including whether one narrator can sustain every volume and every returning character. Returning characters keep the same voice, which fans notice and appreciate.

Questions and answers

Audiobook Production: Your Questions Answered

What are the ACX audio requirements?

ACX asks for 192 kbps constant bitrate MP3 at 44.1 kHz, with overall loudness between minus 23 and minus 18 dB RMS, peaks below minus 3 dB, and a noise floor of minus 60 dB RMS or lower. Each chapter is a separate file with room tone, and each stays under 120 minutes. Files that miss any of these are rejected.

How long does it take to produce an audiobook?

A rule of thumb is that one finished hour takes several hours of recording and editing. A typical novel might take six to ten weeks from casting through mastering, depending on narrator availability and length. We confirm a schedule in writing before recording begins, and your review time for early chapters is built into it.

Should I narrate my own audiobook?

You can, and some authors do it well, especially for memoir or nonfiction. It requires a quiet, treated space, stamina, and consistent technique across many hours. We can arrange a test recording so you hear the result and decide before committing to the whole book. Fiction with many characters is usually harder to narrate alone.

Do I keep the rights to my audiobook?

Yes. You hold your audio rights and publish through your own ACX or other retailer account, so royalties are paid directly to you. Your choice of exclusive or non-exclusive distribution affects royalty rates and where you can sell, and we explain the trade-offs before you sign anything. We do not take a share of your audio royalties or ask for any assignment of rights.

How many words is an hour of audiobook?

Narrators typically read about 9,000 to 10,000 words per finished hour, so an 80,000-word novel runs roughly eight to nine hours. This estimate drives production time and narrator fees. We calculate it from your actual manuscript when preparing your quote, since dialogue-heavy and technical books read at different speeds. Use it for rough planning only.

Can I turn my ebook into an audiobook without recording equipment?

Yes. You do not need any equipment, because the narrator records in their own treated space and we handle editing and mastering. Your part is to supply the final manuscript, confirm pronunciations, listen to early chapters, and approve the finished files. Please send the final edited text, since changes after recording mean costly re-recording. We will remind you before recording starts.

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Why authors stay

Six Reasons Authors Keep Working With One Team

01

Writers matched by genre

A memoir needs a different writer than a space opera. We assign people who already read and write in your category.

02

Confidential by default

An NDA is signed before you share anything, and your name is the only one that appears on the book.

03

Pricing you can read

You get a written quote that lists what is included. Royalties are never shared with us, now or later.

04

Revisions until approved

Ask for changes on any approved outline or chapter. We keep going until you are happy to sign off.

05

Books with a point of view

We push for a clear angle and a distinct voice, so the book is memorable rather than merely complete.

06

One named contact

A project manager owns your timeline, answers messages and tells you what happens next at every stage.

Free consultation

Tell Us About Your Book And Get A Written Quote

Share a few details and a project manager will reply within one business day with questions, a rough timeline and an itemised quote.

  • A first call with no obligation to buy
  • NDA signed before you share any material
  • Rights and royalties stay with you
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