Blake
English · Narration
M4B Audiobook Export
Free to start. No card needed.
Export your audiobook as M4B with chapter markers read from the encoded audio. Or choose merged MP3, a ZIP per chapter or WAV. Export is free.
“VocalLab AI nailed the process, and the output is better. Way better. I love the ability to steer voices and ease of adding emotions/ sighs/ coughs.”
“I can upload a Word document, select automatic casting, click a button, and out comes a fully dramatised audiobook with different voices and performances.”
Step-by-step guide
How to Use M4B Audiobook Export
Start for free — no credit card, no software to install.
Generate the book first
Voice the chapters you want in the file, then open the export screen.Choose a package
Pick M4B for a single file with chapters, merged MP3 with optional chapter markers, a ZIP with one file per chapter, or WAV.Set bitrate and mastering
Choose a bitrate at or below your generation quality. Turn on loudness mastering if you want even levels across the whole book.Download and check a chapter jump
Open the file in your player and skip between chapters to confirm the markers land where you expect.
M4B Audiobook Export
Features & Capabilities
Everything you need to create professional voiceovers — in one tool.
Drift-free chapter markers
Markers come from the encoded audio, so they stay on the chapter start for the whole book.Choice of packages
M4B, merged MP3, ZIP with one file per chapter, or WAV.Step-down bitrate
Choose 320, 256 or 192 kbps for MP3, never higher than the generation quality.Whole-book loudness mastering
Optional, and measured over the entire book so relative chapter levels are preserved.Zero-point export
Packaging and downloading never use points.
Use cases
What Can You Create with M4B Audiobook Export?
From TikTok to podcasts — here's where creators use this tool most.
Listening in an audiobook player
A single M4B with chapters is easier to browse than a folder of numbered tracks.Sending chapters to an editor
The ZIP with one file per chapter lets a sound editor fix or replace a single chapter without touching the rest.Archiving a master
Export WAV as a lossless copy, then make smaller delivery files from it later.One-file distribution
A merged MP3 with chapter markers keeps the whole book as one file for players that read ID3 chapters.
vs Standard TTS
VocalLab vs Standard Text-to-Speech
See why creators switch from generic TTS tools to VocalLab.
| VocalLab AI | Standard TTS | |
|---|---|---|
| Audio quality | Studio-quality AI | No |
| MP3 export | Yes | No |
| SRT caption export | Yes | No |
| Word-level highlighting | Yes | No |
| Emotion & style control | Yes | No |
| Commercial rights | Yes | No |
| Instant generation | Yes | No |
| Free tier | No credit card needed | No |
Recommended Voices
Matched to this tool. Play a sample, then use it in Studio.
About this tool
Everything you need to know about M4B Audiobook Export
To get an M4B audiobook with chapters, finish your book in the audiobook editor and pick M4B as the export package. The chapter markers are taken from the encoded audio itself, so they land on the right second and do not drift over a long book. M4B is one of several ways out. You can also download one merged MP3, optionally with chapter markers, a ZIP holding one file per chapter, or WAV. Exporting costs 0 points.
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Why do the chapter markers stay accurate?
They are taken from the encoded audio rather than estimated from the script. What you hear at a chapter start is where the marker sits, even on a long book.
Can I pick a bitrate for the export?
You can choose a delivery bitrate, but it only steps down from the quality the book was generated at. A book generated at a lower quality cannot be exported higher.
Does the M4B include cover art?
No. Cover art is not embedded in the M4B. Add it afterwards in your player or a tagging tool.
What is loudness mastering?
An optional pass measured once over the whole book. Chapters keep their relative levels, so a quiet chapter is not boosted to match a loud one.
Does exporting spend points?
No. Generating the audio uses points. Packaging it as M4B, MP3, ZIP or WAV costs nothing.
Make the whole audiobook in Studio.
Upload your manuscript, cast the voices and export every chapter. Free to start.
