How we produce, score, and publish AI-narrated audiobooks, with the store rules and royalty math we run into along the way.
9 min read
Audible's current price ranges by runtime, the list price to set everywhere else, how to price the library edition, and what each store pays per sale.
David Mainayar
Founder
Remove a KDP Virtual Voice audiobook through KDP, not ACX, and why KDP Select audio exclusivity still runs until the current term ends.
Four author clones, input and output. The 20-second clip each author sent, the clone reading their book, and the recording rules that held.
Exclusive vs. wide audiobook math with real royalty rates: break-even, the $1,000 example, library money, and when staying Audible-only is the right call.
The AI audiobook routes indie authors keep comparing, side by side: cost model, who does the work, whether you own the files, and where the book can sell.
Publish everywhere listeners buy and borrow: how Publisher prepares, submits, and manages store review, royalties, and account setup.
Two setups: zero-effort Concierge publishing or accounts in your own name. Lex takes no royalties. On Spotify you keep the full author share. On every other store the distribution partner keeps 20% of net.
How to record 10–90 seconds that actually clone well: clean speech, exact transcripts, levels, and what Lex gates for authors.
Gear, room, levels, and script tips so Lex can clone your voice from under two hours of clean narration. From real author sessions.
Real numbers for audiobook production in 2026: per-finished-hour narrator rates, editing and mastering fees, the royalty-share trap, and what AI production changes.
A working comparison of upfront, royalty-share, and AI production economics. ACX terms change, so use the current agreement for the final numbers.
Which stores accept AI-narrated audiobooks in 2026: Spotify, Apple Books, Google Play, Kobo, and libraries, plus disclosure rules and the ACX exception.
AI narrators drift between takes, creating "seams" where the voice changes. What causes TTS drift, how to measure it, and how Lex engineers around it.
Most AI voices fail at long-form narration. The cold-start probe Lex uses to test voice stability before burning credits, and why character voices drift.
How Lex scores AI audiobooks like films: anchored music beds, looped ambience, word-synced sound effects, and a stem mix where silence is a choice.
