Visual guide
A step-by-step visual guide for text to speech for audiobooks.
Indie novel narration
Publish an audiobook companion to every book in your catalog without a $2,000–$4,000 studio bill.
For indie authors
Text to Speech for Audiobooks
Text to Speech for Audiobooks. Turn your manuscript into a narrated audiobook without a recording studio. 54 natural voices, MP3 or lossless WAV, full commercial rights.
Indie & self-publishing
Audiobook narration without the studio bill
Studio audiobook production runs $200–$400 per finished hour, putting a 10-hour novel at $2,000–$4,000 before you sell a single copy. FreeTextoSpeech delivers natural Kokoro voices at zero cost with full commercial rights, publish an audio companion to every title in your catalog.
Related use cases
The quick answer
Upload a TXT, Markdown, DOCX, or EPUB manuscript, review the chapter queue, and map narrator or character tags to consistent voices. Export joined MP3/WAV audio and chapter stems, then apply destination-specific loudness mastering before publishing.
In four steps
The production workflow
- 01
Import the manuscript
Upload TXT, Markdown, DOCX, or EPUB. Headings and chapter structure become an editable narration queue.
- 02
Map narrator and characters
Keep one consistent narrator and assign distinct voices to tagged character lines when the production calls for a cast.
- 03
Generate chapter files
Render the selected queue and export a joined audiobook, individual chapter files, or a ZIP with the project manifest.
- 04
Master to ACX targets
Add 0.5–1s gaps between segments, normalize to about -20 dB RMS, gentle 3:1 compression, 80 Hz HPF. Export 192 kbps MP3.
When to use it
What indie authors ship with it
Public-domain audiobooks
Narrate Project Gutenberg classics for personal listening, niche distribution, or LibriVox-style channels.
Self-help & non-fiction
Adam and Michael deliver authoritative reads ideal for business, productivity, and self-development titles.
Course companion audio
Turn your written course material into an audiobook bonus, adds perceived value with zero recording cost.
Voice guide
Voices that survive a full novel
A voice that sounds great in a 30-second demo can grate after 90 minutes. These six are tested over chapter-length passages, clean consonants, steady cadence, no aggressive vocal fry that becomes distracting on long listens. Mix US and UK accents to match your manuscript's setting.
01 US
River
Smooth literary
Best for
Literary fiction, contemplative non-fiction, memoir. Even cadence holds up over chapter-length passages without listener fatigue.
02 US
Sarah
Warm storyteller
Best for
Middle-grade fiction, cozy mysteries, family sagas. Natural warmth carries dialogue-heavy scenes well.
03 UK
Daniel
British authoritative
Best for
History, biography, business non-fiction. Adds gravitas to expository writing without sounding stiff.
04 US
Adam
Neutral male narrator
Best for
Thrillers, sci-fi, technical non-fiction. Clean consonants survive any aggressive mastering chain.
05 US
Bella
Soft female narrator
Best for
Romance, YA, lighter contemporary fiction. Softer attack reads gentler at the end of long sessions.
06 UK
Emma
UK female literary
Best for
Period fiction, classic literature, British-set novels. Well-modulated for first-person narration.
Want to hear them? Browse all 54 voices →
Best practices
Production tips from indie authors
Generating audio is the easy part. What separates a publishable audiobook from a clip dump is segment hygiene, consistent voicing, and proper mastering. These six rules will save you from the most common indie-audiobook mistakes.
- 01
Chunk by chapter, not by paragraph
Import the manuscript and review the section boundaries created from chapters, headings, and natural paragraph breaks. Adjust the queue before generation so no cut lands in the middle of an idea.
- 02
Lock one voice for the whole book
Audiobook listeners notice voice changes within seconds. Pick River, Sarah, or Daniel before you start chapter one and do not switch, even between chapters generated weeks apart. Switching voices mid-book is the fastest way to get refund requests.
- 03
Generate a chapter in one sitting
Within a single chapter, generate all segments in the same session. Tonal drift between sessions is small but audible on a 90-minute listen. Cross-chapter drift is less of a problem because the silence and chapter break mask it.
- 04
Master to audiobook loudness targets
ACX asks for -23 to -18 dB RMS, a -3 dB peak ceiling, and a noise floor below -60 dB. Drop the WAVs into Audacity or Reaper, run a 3:1 compressor at -18 dB threshold, 80 Hz high-pass, then normalize to about -20 dB RMS for safe headroom.
- 05
Handle dialogue with intention
Either keep one narrator or tag character lines consistently. The studio maps each detected speaker to a voice and speed, so the casting remains stable throughout the selected queue.
- 06
Export WAV master, MP3 + M4B for distribution
Keep the 24 kHz WAVs as your master. Encode 192 kbps MP3 for direct sales and Findaway. For Apple Books and a single-file audiobook experience, build a chaptered M4B in Audiobook Builder or AAX Audio Converter from the MP3 chapter files.
Honest comparison
FreeTextoSpeech vs traditional audiobook production
Hiring a human narrator on ACX gives you the strongest emotional performance and the only direct path to Audible exclusivity. AI narration trades that ceiling for radically lower cost, faster turnaround, and the ability to revise after the fact. Pick the path that matches your distribution plan and budget.
Feature
FreeTextoSpeech
ACX human narrator / Speechify Audiobooks
Cost for a 10-hour novel
$2,000–$4,000 (ACX) or $13–17/mo + per-character limits (Speechify)
Time from manuscript to finished audio
6–12 weeks (human narrator and revision cycles)
Voice variety
One narrator per project on ACX; subscription-tier limited on Speechify
Commercial use rights
Royalty share or per-finished-hour fee with the narrator
ACX / Audible compatibility
ACX human narration is the native fit for Audible exclusivity
Revising a chapter after recording
Schedule a pickup session, pay re-recording fees
Royalty share on sales
Up to 50% royalty share with an ACX narrator over 7 years
Cost for a 10-hour novel
FreeTextoSpeech
$0
ACX human narrator / Speechify Audiobooks
$2,000–$4,000 (ACX) or $13–17/mo + per-character limits (Speechify)
Time from manuscript to finished audio
FreeTextoSpeech
Same day
ACX human narrator / Speechify Audiobooks
6–12 weeks (human narrator and revision cycles)
Voice variety
FreeTextoSpeech
54 voices across 9 languages
ACX human narrator / Speechify Audiobooks
One narrator per project on ACX; subscription-tier limited on Speechify
Commercial use rights
FreeTextoSpeech
Full commercial use, no attribution
ACX human narrator / Speechify Audiobooks
Royalty share or per-finished-hour fee with the narrator
ACX / Audible compatibility
FreeTextoSpeech
Not eligible for direct ACX upload, Findaway, Google Play, Gumroad work
ACX human narrator / Speechify Audiobooks
ACX human narration is the native fit for Audible exclusivity
Revising a chapter after recording
FreeTextoSpeech
Re-generate the segment in 10 seconds
ACX human narrator / Speechify Audiobooks
Schedule a pickup session, pay re-recording fees
Royalty share on sales
FreeTextoSpeech
You keep 100% (minus platform cut)
ACX human narrator / Speechify Audiobooks
Up to 50% royalty share with an ACX narrator over 7 years
ACX policy on AI narration changes, verify current eligibility before submitting. For Audible exclusivity a human narrator (or one of ACX's approved AI providers) remains the native fit.
In context
How creators turn a script into publishable audio for text to speech for audiobooks.
FAQ
Text to Speech for Audiobooks FAQs
01 Can I make a real audiobook with FreeTextoSpeech?
Yes, for personal use, indie distribution, and platforms that allow AI-narrated audiobooks. Production-grade ACX (Audible) submissions still benefit from a human narrator or a paid voice cloning service for the best emotional range, but for most independent authors and self-publishers, FreeTextoSpeech is fully production-ready.
02 Which voices are best for long-form audiobook narration?
For US English, Sarah, River, Bella, and Adam handle long passages well, clear consonants, steady pacing. For UK English, Emma and Daniel are the natural picks. For other languages, pick the warmest female or steadiest male voice in your target locale.
03 How do I handle a long manuscript?
Import a TXT, Markdown, DOCX, or EPUB manuscript. The studio divides it into chapter-sized sections, shows the selected total against your cloud allowance, and exports completed chapters plus a joined track or ZIP.
04 Is the audio quality good enough to publish?
Yes. Download the 24 kHz lossless WAV (MP3 is also available). Drop it into Audacity or Reaper to bring it into ACX's -23 to -18 dB RMS range, add gentle compression, and remove any breath gaps. The result is comparable to entry-level audiobook production.
05 Can I sell audiobooks made with FreeTextoSpeech?
Yes. Every clip is licensed for commercial use with no attribution required. You can sell on Gumroad, your own site, Findaway Voices (if they accept AI narration), and AI-friendly audiobook platforms. Always check the destination platform's policy on AI narration before publishing.
06 Can I publish an AI-narrated audiobook on Audible / ACX?
ACX opened a controlled program for virtual voices, but it currently only accepts narration from a small set of approved AI providers, third-party AI narration generated outside that pipeline is generally not eligible for direct ACX upload. Spotify (via Findaway Voices) and Google Play Books are friendlier to independently-produced AI narration, and several indie audiobook stores accept it without restriction. Always read the destination platform's current policy before submitting, since these rules change frequently.
07 How do I handle multiple character voices in dialogue?
Use speaker tags such as NARRATOR: and MARA: in the prepared manuscript. The studio detects the tags, gives each speaker an independent voice and speed, and joins the completed turns in order while retaining separate stems.
08 Can I narrate public domain books and sell the recording?
The text of a public domain book (Project Gutenberg, pre-1929 US works) is free to use. The audio recording you generate with FreeTextoSpeech is yours under the commercial-use license, so you can sell, distribute, and monetize the audiobook. Note that some platforms restrict listings of public-domain titles to avoid catalog spam, and your recording does not give you any claim over the original text, only over the specific narrated audio file you produced.
Still wondering? Get in touch →
Keep going
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Audio format
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Lossless 24 kHz WAV, the master format for audiobook production.
Characters
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AI Dialogue Generator
Voice a scene between two or more characters and export it as one file.
Try it now
Your novel as audio.
Free narration. Commercial use allowed.