Not just voices. A complete production house. 13 phases.
Every audiobook passes through 13 automated phases — from raw text to distribution-ready cinematic production. No human bottlenecks. No compromises.
Script Editor
The manuscript is cleaned, normalized, and structured into production-ready chapter scripts — fixing formatting, splitting scenes, and preparing the text the pipeline will work from.
Direction
Our creative director reads your manuscript and writes a full cinematic direction script — emotion, pacing, and sound cues for every line, every character.
Voice
Distinct character voices cast and synthesized with per-character emotional modulation. Text-to-dialogue renders multi-character conversations as natural exchanges. Minor characters are auto-cast from the voice pool so every role has a distinct voice without manual assignment.
Post-Processing
Loudness normalization, de-essing, artifact removal, and per-character EQ and dynamics.
Sound Design
Contextual sound effects — footsteps, weather, ambience — generated and placed from the direction script.
Reverb
Environment-appropriate spatial treatment: outdoor, indoor, cave, forest. Each scene gets its own space.
Music
Original background music scored to scene mood, tempo, and emotional arc. Not library music — composed per chapter.
Assembly
Voice, SFX, reverb, and music layered into a cohesive stereo mix with crossfades and precise timing.
Mastering
Two-pass loudness mastering to broadcast standards. Platform-specific output: podcast, audiobook, YouTube.
Quality Control
5-gate automated QC: loudness compliance, Whisper STT transcript accuracy, spectral analysis, pacing validation, and voice distinctness. When a chapter fails, the QC agent diagnoses the cause and dispatches the fix. You receive a chapter that has already passed its own remediation loop.
Manifest
Distribution metadata, chapter markers, cover art references, and packaging instructions generated automatically.
Video
Cinematic cover video with Ken Burns animation for YouTube distribution. Chapter timestamps generated automatically.
Shorts
Short-form clips extracted from peak moments for social media promotion across YouTube Shorts, TikTok, and Reels.
Live in Embervox Theater
Your audiobook goes live in Embervox Theater with the full AI companion layer activated — Ask Your Guide (grounded voice Q&A, spoiler-safe), chapter Recaps, Transcript Sync, and Learning Mode for educational and children's titles. Every listener gets an interactive experience, not just a stream.
The QC agent doesn't just flag problems. It fixes them.
Every chapter passes five automated quality gates before delivery. When a gate fails, the pipeline doesn't pause and wait for a human — the QC agent reads the failure, diagnoses the root cause, and dispatches the fix to the relevant specialist.
A sibilance spike: the audio agent applies a targeted filter. A mispronounced word: the voice agent regenerates that single line. A loudness deviation: the mastering agent re-runs the affected segment. The chapter comes back through all five gates again.
The master you receive has already been through its own remediation loop — automatically, in minutes. Every chapter is validated, remediated if needed, and re-validated before delivery. Not because failures don't happen. Because the house fixes them before you see them.
Gate 1
Technical Compliance
Loudness (LUFS), true peak, RMS, noise floor
Gate 2
Transcript Accuracy
Whisper STT validates every word was spoken correctly
Gate 3
Spectral Analysis
Clipping, sibilance, artifacts, and silence gap detection
Gate 4
Creative QC
Pacing, music-voice balance, intro/outro structure
Gate 5
Voice Distinctness
Character voice separation and energy profile comparison across the cast
Multilingual production. Coming soon.
The same pipeline, the same quality, the same voices — in any of 70+ supported languages. Sound design and music are reused. You pay for a new language track, not a new production.
Learn about multilingual production →Coming soon
Today we produce for you. Soon, you'll produce yourself.
We're building the infrastructure to make cinematic audiobook production available to every publisher — starting with full-service, evolving toward self-serve.