Audiobook post-production for authors, narrators & publishers
Audiobook Editing & Production Services That Pass ACX the First Time
Send us your raw narration. We edit out every stumble, breath and click, proof it against your manuscript, and master each chapter to ACX, Apple Books and Spotify specs. You get clean, retail-ready files and a narration that still sounds like you.
- Human editors — no one-click AI filters
- Proofed word-for-word against your script
- Free fixes if ACX flags a technical issue on files we mastered
Mastered for every major audiobook platform: ACX / Audible · Apple Books · Spotify for Authors · Google Play Books · Kobo · Voices by INaudio (Findaway)
Our services
Audiobook Production Services, Handled End to End
Whether you narrated in a closet studio or a professional booth, we take your raw recordings through the same three-stage workflow used by audiobook publishers.
Audiobook Editing
We remove retakes, misreads, mouth clicks, plosives and long pauses, then tighten pacing so every chapter flows naturally.
Audiobook Proofing
A dedicated proofer listens to every word against your manuscript and fixes skips, repeats and mispronunciations.
ACX Audiobook Mastering
Each file is leveled to ACX RMS, peak and noise-floor specs, with correct room tone and a retail sample included.
What’s included
What Our Audiobook Editing Covers
Every project gets the full checklist below. No surprise add-ons for the work that should be standard.
- Retake and misread removal
- Mouth clicks, lip smacks and pops
- Breath reduction (natural, never robotic)
- Long pause and pacing correction
- Background noise and hum reduction
- Room echo reduction
- Word-for-word proofing to your script
- Consistent tone between sessions
- RMS, peak and noise floor to ACX spec
- Head and tail room tone
- Chapter splitting and file naming
- Free retail audio sample
How it works
From Raw Narration to Published Audiobook in 4 Steps
01
Send a sample
Share 5 minutes of raw audio and your word count. We edit and master it free so you can hear the difference.
02
Get your quote
You receive a fixed price based on finished hours, plus a delivery date. No obligation.
03
We edit, proof & master
Upload your chapters by Google Drive, Dropbox or WeTransfer. We send chapters back for review as they finish.
04
Upload & publish
You get ACX-compliant MP3s and WAV masters, ready for Audible, Apple Books, Spotify and more.
Pricing
Simple Per-Finished-Hour Pricing
Audiobook editing is priced per finished hour (PFH) — the length of the final, edited audiobook. An 80,000-word novel is roughly 8.6 finished hours.
| Package | What you get | Price |
|---|---|---|
| ACX Mastering | Mastering to spec, room tone, retail sample | $35 / PFH |
| Edit + Master | Full editing, noise cleanup and mastering | $75 / PFH |
| Complete Production | Editing, word-for-word proofing and mastering | $110 / PFH |
Who we help
Built for Self-Narrating Authors, Narrators and Publishers
Self-narrating authors
Recorded your own book at home? We make it sound professional without losing your voice, and guide you through the ACX upload.
Audiobook narrators
Spend your hours behind the mic, not in the editor. We handle the post-production so you can take on more titles.
Small publishers & producers
Reliable overflow editing and QC for your catalogue, with consistent specs across every title and narrator.
ACX compliance
The ACX Requirements We Master To
ACX (Audible) rejects files that miss any of these technical checks. Every chapter we deliver is measured against them before it leaves our studio.
| Requirement | ACX standard |
|---|---|
| RMS loudness | Between −23 dB and −18 dB |
| Peak level | No higher than −3 dB |
| Noise floor | No higher than −60 dB RMS |
| File format | MP3, 192 kbps or higher, CBR, 44.1 kHz |
| Room tone | 0.5–1 s at the start, 1–5 s at the end |
| File length | Each file under 120 minutes |
| Retail sample | 1–5 minutes, no explicit content |
FAQ
Audiobook Editing FAQs
How much does audiobook editing cost?
Our packages start at $35 per finished hour for ACX mastering only, $75 for editing and mastering, and $110 for complete production with word-for-word proofing. A typical 8-hour book with complete production costs about $880.
How long does it take to edit an audiobook?
Most books of 6–10 finished hours are delivered in 7–12 business days. Rush delivery is available. We confirm your delivery date with your quote.
Will my audiobook pass ACX?
We master every file to ACX’s RMS, peak, noise-floor and format requirements and check each chapter before delivery. If ACX flags a technical issue on files we mastered, we fix it free.
Do you use AI to edit audiobooks?
We use professional tools for noise reduction, but every edit and every listen is done by a human editor. One-click AI cleanup often makes voices sound thin and robotic, so we don’t rely on it.
What files should I send?
Send uncompressed WAV files (16- or 24-bit, 44.1 kHz or 48 kHz), one file per chapter if possible, with no heavy processing applied. Include your final manuscript for proofing.
Can you edit an audiobook I recorded at home?
Yes. Most of our clients record at home. If your raw audio has issues we can’t fully fix, we’ll tell you on the free sample before you pay anything.
Hear Your Audiobook at Its Best — Free
Send us five minutes of raw narration. We’ll edit and master it to ACX spec and send it back with a fixed quote for the full book.