Your book.
Your cast.
Real performance.
Upload an EPUB, Kindle, or PDF. AI detects every character, assigns voices, and narrates with scene direction and inline emotion tags — whisper, urgent, breathless — right down to the line.
Free. No credit card required.
[warm] The rain hammered against the window. [short pause] She knew, [reflective] even before opening the letter, that everything was about to change.
Nine narration presets
Each card shows the preset, the voice, scene direction, and a real sample script you can copy into the editor. Press play to hear the narration.
Award-winning narrator. Warm, intimate, sentences allowed to breathe.
Unhurried and reflective. Each clause lands. Dialogue softens; description carries weight.
[warm] The rain hammered against the window. [short pause] She knew, [reflective] even before opening the letter, that everything was about to change.
Investigative narrator. Tight, controlled, building dread line by line.
Cold and forward-leaning. Pauses cut, never settle. Final beat lands flat — not punched.
[cold] He'd been here before. [urgent] The door was open. [short pause] [breathless] It shouldn't have been.
Intimate narrator with a confidant's voice. Every line is told to one person.
Warm and slow. Sentences breathe. Whispers used sparingly so they actually mean something.
[warm] He said her name like it was a confession. [whispers] Eleanor. [short pause] [trembling] And for the first time in seventeen years, she let herself answer.
Storyteller voice. Animated, mischievous, lots of life — never shouty.
Bright and playful. Character voices stay distinct. Read for the kid on the floor at bedtime.
[cheerful] The little fox tucked the map under his paw. [mischievously] He was not lost. [excited] He was on an adventure. [warm] There is, of course, a very large difference.
Cold authoritative narrator. The voice of the investigation, not the victim.
Measured and grim. Names land. Numbers land. Emotion is implied through restraint.
[cold] On the night of October eleventh, [short pause] only one neighbor heard anything. [serious] She did not call the police. [grim] She would, [short pause] for the rest of her life, regret that.
Bardic narrator. Old, weathered, the keeper of a story too large for one telling.
Stately cadence. Names get weight. World-building lands like memory, not exposition.
[serious] Before the Three Kings, before the long winter that bore the name of the Last Queen, [short pause] [warm] there was a road. [determination] And the road did not forget.
Wry observer. Agatha-style narrator who already knows who did it.
Precise and amused. Small pauses for the listener to catch the clue you just dropped.
[curious] There were, in the drawing room, seven people. [mischievously] Six of them were lying. [short pause] [serious] The seventh would, in approximately forty minutes, be dead.
First-person narrator telling a long story to one friend by the fire.
Conversational, slightly self-deprecating. Honest without performing the honesty.
[warm] My mother used to say there were two kinds of people. [reflective] [short pause] The kind who left, and the kind who waited. [intimate] She didn't tell me which one I was.
Confident coach. Direct, motivating, no filler. Trustworthy at scale.
Clear and measured. Builds belief through specificity, not volume. Lands the call to action softly.
[confidence] The hardest part of any habit is the first ninety seconds. [determination] Not the first day. [short pause] [warm] The first ninety seconds. That's the only door you have to walk through.
How it works
Four steps. One afternoon. No studio, no scheduling, no second take. Upload your book and AI handles the cast, the direction, and the delivery.
Drop an EPUB, Kindle, PDF, DOCX, or plain text file. AI extracts the text and detects chapters from your TOC, headings, or markers — your book's structure is preserved automatically.
AI scans the manuscript, identifies every speaking character, and assigns a distinct voice from 550+. Save them to your character library — the same Elena follows you from Book 1 to Book 7.
Per-paragraph scene direction shapes the atmosphere. Inline emotion tags like [whisper] and [urgent] drop at the exact line where delivery shifts — not glued to every paragraph.
whisperWait. breathlessThis can't be right.
Chapters render in parallel — a 10-hour novel finishes in under an hour. Export per-chapter MP3s or a merged file at ACX-compliant 192 kbps. Publish on Audible, Apple Books, Spotify, anywhere.
Storybook Mode
Listeners get more than narration — they get a visual reading experience with character portraits, genre-aware scene illustrations, and word-level highlight sync that follows the voice.
AI generates a portrait for every detected character and pins it to the page. Elena looks the same in chapter 3 as she does in chapter 27 — no muddled mental images, no skimming back to remember who's who.
Inline illustrations at chapter beats — fantasy, romance, thriller, and memoir each have their own visual language. Readers see the world, not just hear it.
Word-level highlight follows the narration in real time, like a karaoke for prose. Built for language learners, dyslexic readers, and anyone who wants to follow the text while they listen.
The economics
Traditional audiobook production costs $5,000 to $15,000 per finished hour. AI narration delivers the same quality in one afternoon.
No studio. No voice actors. No scheduling. Cast your characters, direct your scenes, drop inline emotion tags where the delivery actually shifts. Building voice AI since 2018.
Frequently asked questions
The full picture
Traditional audiobook production costs $5,000 to $15,000 per finished hour and takes weeks: booking actors, studio time, engineers, post-production, retakes. For most indie authors and mid-list publishers, that math has always meant the audiobook never happens — or happens years late, after the marketing window has already closed.
Notevibes collapses that workflow into text. Upload your EPUB, Kindle, PDF, or DOCX; AI parses chapters from the TOC, detects every speaking character, assigns distinct voices, and narrates with scene direction and inline emotion tags. A 10-hour novel finishes in under an hour of wall-clock time, with full commercial rights and ACX-compliant exports — ready to publish on Audible, Apple Books, Spotify, Google Play, or anywhere else.
Your character library lives at the account level. For each character you save a voice, a portrait, a persona, an emotion-tag vocabulary, and reference details — and new books link their detected speakers to those library characters with one click. Elena in Book 1 sounds and looks identical to Elena in Book 7. Series consistency stops being a production problem.
Related: All 550+ voices · Female narrators · Male narrators
Persona is who the voice IS at the character level. Scene direction is how the moment FEELS, applied per paragraph ("hushed, confessional — rain at the window"). Inline emotion tags like [whisper], [urgent], [breathless] sit at the exact word where delivery shifts. Stack all three and the AI delivers a performance, not a readout — and you can invent your own creative tags ([like an orc], [submerged], [through gritted teeth]) per character.
Related: Free text to speech · Read aloud
Upload EPUB, Kindle (.mobi/.azw3), PDF, DOCX, or plain text. Chapters are detected from the TOC, headings, or custom markers. Export per-chapter MP3s or a merged file at 192 kbps CBR — the ACX-compliant standard accepted by Audible, Apple Books, Google Play Books, Kobo, Findaway Voices, and every major distributor. WAV, OGG, and ULAW are available for editing or telephony.
Related: PDF to audiobook · Word to audiobook · Audiobook voice comparison
Once you're shipping multi-voice narration from text, the same workflow extends to every other audio surface you publish. Pair two voices for a podcast. Pull a short clip for TikTok or Reels promo. Generate a YouTube voiceover for the book trailer. The cast you built for the novel travels everywhere — same voices, same emotion controls, same one-editor workflow.
Related: AI podcast generator · YouTube voiceover · TikTok voice generator