How to Use Compression to Achieve Clearer, More Consistent Audio for Acx

March 16, 2026

By: Audio Scene

Recording high-quality audio is essential for success on ACX, the platform for audiobook narrators. One of the most effective tools to improve audio clarity and consistency is compression. This guide explains how to use compression effectively to enhance your audiobook recordings.

What Is Audio Compression?

Audio compression reduces the dynamic range of your recording, making loud sounds quieter and quiet sounds louder. This process results in a more balanced and uniform sound, which is crucial for listener comfort and professionalism. Proper compression ensures that your narration remains clear and consistent throughout the audiobook.

Steps to Use Compression Effectively

  • Choose the Right Compressor: Use a digital audio workstation (DAW) or audio editing software that includes a compressor plugin or effect.
  • Set Threshold: Determine the level at which compression begins. Typically, set the threshold just above your average speaking volume.
  • Adjust Ratio: A ratio of 3:1 or 4:1 is common for voice recordings. Higher ratios result in more aggressive compression.
  • Set Attack and Release: The attack controls how quickly compression starts after a loud sound. The release determines how quickly the compressor stops after the sound subsides. Use moderate settings to keep your narration natural.
  • Apply Makeup Gain: Increase the overall volume after compression to match the original loudness levels without causing distortion.

Tips for Best Results

  • Use gentle compression settings to avoid making your voice sound unnatural.
  • Always listen to your recording after applying compression to ensure clarity and natural tone.
  • Combine compression with equalization (EQ) to further enhance voice quality.
  • Record in a quiet environment to minimize background noise, which compression can sometimes amplify.

By mastering the use of compression, you can produce clear, consistent, and professional-sounding audiobooks that meet ACX standards. Practice and careful adjustment are key to finding the perfect balance for your voice.