GRAPHENE
Closed beta ยท 2026

Turn your manuscript into an Audible-ready audiobook.

Drop an EPUB, DOCX, or PDF. Auto-cast character voices, fix pronunciations, render every chapter, export an ACX-spec .m4b. What used to take an indie author six months and $3,000 in narrator fees now takes an afternoon and a few dollars in TTS credits.

Free during closed beta. Spot for 5โ€“10 authors.

What's inside
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Bring your own book
EPUB, DOCX (Word, Scrivener, Google Docs), or PDF. Cover auto-extracted. Chapter detection from heading styles, page breaks, or "Chapter N" regex.
โœจ
AI does the tedious setup
Auto-cast voices reads your characters' age, MBTI, voice brief and matches each to an ElevenLabs voice. Auto-suggest lexicon scans every chapter for proper nouns and proposes IPA pronunciations.
๐ŸŽญ
Multi-voice acted chapters
Detected dialogue ("X," said Pell.) auto-routes to the mapped character voice. Narrator handles everything else. No per-line manual work.
๐ŸŽง
Preview before you commit
Tweak a lexicon entry, change a voice, render a 60-second test clip in 10 seconds. Cost ~$0.02 per preview vs $0.30 per chapter โ€” iterate dozens of times.
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Render the whole book, see live progress
One click renders every chapter sequentially with per-chapter status (rendered / failed / pending). Per-chapter isolation: one failed chapter doesn't abort the batch.
๐Ÿ“ฆ
Export ACX/M4B in one click
Loudness-normalized to ACX spec (-20 LUFS, -3dB true peak). Chapter markers + cover art + metadata embedded. Upload straight to Audible, Findaway, Apple Books, or Google Play Books.
How it works
  1. 1
    Upload
    Drop your manuscript file. The parser pulls title, author, chapters, and the cover image.
  2. 2
    Set up
    AI casts each character to a voice + suggests pronunciations for proper nouns. Review + tweak.
  3. 3
    Preview
    Hear a 60-second clip in any voice config. Iterate until it sounds right.
  4. 4
    Render
    One click renders every chapter. Live progress modal.
  5. 5
    Export
    Download an ACX-spec .m4b. Upload to Audible / Findaway / Apple Books.
Join the closed beta

Tell us about your book.

5โ€“10 author spots. We're recruiting people who have a finished (or nearly finished) manuscript and want to ship it to Audible without the $3k narrator bill.

We'll only email you about your beta application + product updates. No spam, no list reselling.

Graphene Studio โ€” Closed beta signup | HiveJournal