Understanding the Acx Audio Submission Checklist and How to Use It

March 16, 2026

By: Audio Scene

The ACX Audio Submission Checklist is an essential tool for authors and narrators who want to publish their audiobooks on Audible, Amazon, and iTunes. It ensures that your audio files meet all technical and content standards required by ACX, helping you avoid rejection and delays.

What is the ACX Audio Submission Checklist?

The checklist is a comprehensive list of requirements that your audiobook files must satisfy before submission. It covers aspects such as audio quality, formatting, and content guidelines. Following this checklist increases the likelihood of a smooth approval process.

Key Components of the Checklist

  • Audio Quality: Clear sound with no background noise, distortion, or echoes.
  • File Format: Files must be in MP3 format, with a bit rate of 192 kbps or higher.
  • File Naming: Properly labeled files that match the chapter order.
  • Chapter Markers: Accurate and consistent chapter markers for navigation.
  • Content Guidelines: No extraneous noises, interruptions, or inappropriate content.
  • Metadata: Correct and complete metadata for each file.

How to Use the Checklist Effectively

Before submitting your audiobook, review the checklist carefully. Use it as a step-by-step guide to verify each aspect of your audio files. This proactive approach can save time by catching issues early.

It is helpful to create a pre-submission quality control process, where you listen to each file on different devices and check for compliance. Also, consider using audio editing software to correct any issues identified during review.

Benefits of Following the Checklist

  • Reduces the risk of rejection due to technical issues.
  • Saves time by avoiding multiple resubmissions.
  • Ensures a professional-quality audiobook for listeners.
  • Builds credibility and trust with your audience and ACX.

In summary, understanding and properly using the ACX Audio Submission Checklist is vital for successful audiobook publishing. It helps you meet technical standards and produce a high-quality listening experience for your audience.