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How to Meet ACX’s Tricky Audiobook Standards

It's not as simple as recording and uploading, unfortunately.

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Fablesmithy
Nov 04, 2026

So, you want to narrate audiobooks? In this economy? Just kidding. It’s a noble pursuit, but it’s not necessarily for everyone. As long as you’re sure: welcome aboard!

For this ship to stay afloat, we have to balance out three very important (and very required) ACX standards, which ensure that your audio is (1) not too quiet; (2) not too loud; and (3) not too noisy. As one might guess, achieving this Goldilocks-level sound quality can be extremely tricky, and – per my experience and research – it’s accomplished only via specific means. I’m here to provide a surefire (and free) way to meet those standards for any project on which you’re working. You’ll need to install the latest release of Audacity, so those of you who’re charging ahead on a tablet or a phone may need to look elsewhere. This software is compatible only with Windows, Linux, and macOS.

The Big Three standards are:

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