Eliminating the Technical Guesswork

You've done the hard work of recording and preparing your chapters, or you've hired a voice-over. The final step, mastering and compliance, is the most critical for marketplace acceptance. Audible/ACX has strict technical criteria that can trip up even experienced narrators, leading to delays and contract frustration.   

We specialise in turning your pre-edited chapters into retail-ready files, ensuring the sound quality enhances your author brand and meets distribution standards.

• The Compliance Hurdle: The stringent -60dB maximum noise floor and precise -23dB to -18dB RMS loudness are non-negotiable standards. Our engineers have the expertise and proprietary tools (such as iZotope RX ) to consistently meet these standards.   

• Risk Mitigation: Avoid delays from technical rejections with our final mastering and ACX compliance, backed by decades of professional audio experience.

Who This Service is For

This service is specifically designed for audiobook creators who have already completed all necessary editing and cleanup (mistakes, mouth noises, breaths, etc.) and require the final technical polish to get their audio ready for distribution.

We work with:

• Experienced Voiceover Artists/Narrators: Professionals who handle their own detailed editing and need reliable audiobook mastering to guarantee their final audio meets all client and platform technical specifications.

• Self-Narrating Authors: Authors who have edited their own recordings and need the critical final step of professional production to ensure their audiobook is compliant for sale on major platforms like Audible and Amazon.

• Independent Producers: Individuals or teams needing specialized, final-stage mastering support to ensure consistent volume, dynamic range, and ACX technical adherence across all chapters of their audiobook.

• Publishers (Mastering Outsourcing): Publishers with in-house editing staff who outsource only the final, technical mastering phase to ensure submission standards are met perfectly every time.

Important Note: This service assumes your audio is already free of errors and unwanted noises. If your audio still requires editing (removing mistakes, clicks, or breaths), please see our Audiobook Editing & Cleanup service instead.