How to turn a Word document into an audiobook

Most indie authors write in Word, and converting to EPUB just to hear the book is a detour you can skip. A .docx file can go straight to audio.

Three formatting fixes before you start

1. Style chapter titles as Heading 1. Select each chapter title and apply Heading 1 (Home → Styles). That's the clearest chapter signal for any conversion tool. Plain lines like “Chapter Seven” are also detected by Bookvox, but styles are unambiguous.
2. Accept or reject all tracked changes. Review → Accept All Changes. Bookvox leaves out deletions but reads pending insertions, so settle the changes first.
3. Keep front matter light. Title pages and copyright notices are fine, but anything you don't want spoken is easier to delete than to skip.

Make the audio for free

1. Open the .docx on bookvox.app. Check the word count and chapter list match your manuscript.
2. Pick a studio voice and listen to a page to check the sound.
3. Choose Download MP3 → Whole document for one MP3 per chapter, made on your own computer.

Hearing your manuscript is also one of the best edits you'll ever do: repeated words, missing words and clumsy rhythm jump out when you listen.

If you want to sell it

Retail audiobook stores publish their own technical requirements. ACX (Audible's production platform), which many others mirror, asks for 192 kbps or higher constant-bitrate MP3 at 44.1 kHz, with RMS loudness between −23 and −18 dB, peaks no higher than −3 dB, and room tone at the start and end of each file. Bookvox's MP3s are speech-optimised (64 kbps mono) and aren't mastered to those specs. Treat them as a listening copy, not a retail master.

And check where AI narration is allowed: platform rules for AI audiobooks.