Audiobook Formats and File Types: Which One Is Best?
Pick the wrong audiobook file format and the best narration in the world still gets rejected, bloated, or locked out […]
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Audiobook editing & self‑publishing insights.
Deep dives into audio engineering, ACX standards, and the art of professional storytelling — master the sound of your next bestseller.
The Complete Guide to Audiobook & Book Formatting Requirements
Getting a book published the right way means clearing two separate sets of technical requirements: ACX’s automated audio checks if […]
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KDP Margins & Trim Size Requirements Explained (2026)
Amazon KDP‘s print-on-demand system is strict about page geometry — and most formatting rejections trace back to one of the […]
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How Long Should ACX Room Tone Be? (And Why It Matters)
It’s one line in ACX’s technical requirements that trips up more first-time audiobook submissions than almost anything else. Here’s exactly […]
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ACX vs. Findaway Voices vs. Spotify: Where Should You Distribute?
Once your audiobook is edited and ACX-compliant, the next decision is where to publish it. Each platform has different exclusivity […]
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Choosing the Right Narrator for Your Audiobook
The narrator is the single biggest factor in how your audiobook is received. Here’s a practical framework for picking the […]
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How to Prepare Your Manuscript for a Formatter
A clean, well-organized manuscript is faster and cheaper to format — and reduces the chance of errors carrying through into […]
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Print vs. eBook Formatting: What’s the Difference?
Many first-time authors assume one formatted file works everywhere. It doesn’t — print and digital editions follow different rules, and […]
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Top 5 Reasons Audiobooks Get Rejected by Audible (and How to Avoid Them)
ACX’s technical review is quiet, non-negotiable, and easy to fail even when your audio sounds fine to your own ears. […]
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The ACX Pre-Submission Checklist
Every real reason audiobooks get rejected by Audible, turned into a one-page checklist — sent straight to your inbox, free.
Blog Questions
Common questions about these guides.
New guides on ACX audiobook standards and KDP/eBook formatting are added regularly as platform requirements change. Check back, or reach out directly if there's a specific self-publishing question you'd like covered.
Mostly, since ACX and KDP are the two largest self-publishing platforms — but the underlying audio editing and formatting principles apply just as well to Findaway Voices, Spotify, IngramSpark, and other retailers.
These articles cover the general rules, but every manuscript and recording has its own quirks. Send your specific question along with your project details and you'll get a direct answer, not a generic FAQ.