Audible Virtual Voice via KDP: What the Public Pages Say

Audible virtual voice is Amazon's own route for turning a KDP eBook into an Audible audiobook with computer-generated speech. As of 8 November 2026 KDP calls it an "invite-only beta for eligible KDP eBooks", available in the US marketplace. You cannot sign up for it; you can only use it if KDP shows the option on your Bookshelf.

KDP asks beta participants not to share details of the program. We are not participants, so this page is limited to what KDP's public help pages state.

Who can use Audible virtual voice

KDP's eligibility page says the beta is invite-only and that KDP may decline or remove any audiobook at any time. When a title is eligible, the Bookshelf shows the option "Add Audible audiobook with virtual voice". As read on 2026-11-08, an eligible title must:

• be a live eBook (not in publishing status, and not a pre-order);
• have worldwide or US rights;
• be reflowable, with a table of contents (NCX or Kindle Interactive);
• have no existing Audible audiobook;
• not be public domain;
• have a title under 200 characters and no more than 1,000 chapters.

The same page adds smaller requirements: a cover that meets KDP's criteria, a primary author or contributor, chapters of about 240,000 words or fewer, no empty chapters, no HTML in the title, and no unsupported characters such as Cyrillic.

KDP's pages list English, Spanish, Italian and French as supported languages, and say the audiobooks are distributed only in the US marketplace. Creating the audiobook is free during the beta, per KDP's creation page.

How to check whether a book qualifies

KDP runs its check after the eBook goes live, and if the Bookshelf still shows "Checking eligibility" more than 5 hours after the eBook goes live, KDP says to contact it. If a title fails, the Bookshelf's "Why isn't my eBook eligible?" link gives the reasons.

For access, KDP's creation page says it plans to expand the beta over time and points authors to KDP's news and product emails for invitations. It gives no date and no way to apply.

Three points on the eligibility page catch authors out:

• "Existing Audible audiobook" is broad. It covers audiobooks made through ACX and audio on a previous edition of the eBook, which has to be unpublished first. Anthologies are out while their individual eBooks keep audiobooks of their own.
• Audio elsewhere is a separate matter. KDP says audiobooks published outside Audible do not affect eligibility, but KDP Select's exclusivity still applies if the eBook is enrolled.
• Some books will not work well. KDP warns that image-heavy content, tables, graphs and code may give a poor listening experience, and that passages outside the book's primary language may be mispronounced. Our manuscript preparation guide covers those fixes.

Who virtual voice fits

Virtual voice suits an invited author who already has an eligible eBook, wants an Audible listing without a production bill, and accepts Amazon's limits on where that audio can go. This table applies KDP's published terms as of 8 November 2026.

Price, royalty and exclusivity

KDP's pricing page gives a list price range of $3.99 to $14.99 and a 40% royalty on all sales during the beta. It adds that KDP may pay a lower rate in future for sales below the minimum list price. Payment is monthly, about 60 days after the end of the sales month. The terms page, dated October 21, 2026, describes the 40% as a share of net receipts for à la carte and membership sales. In other words, the 40% is of a la carte net sales receipts or membership net sales receipts as KDP defines them, and subscription earnings are a share of a monthly fund with criteria Amazon sets, with Audible Plus listening paid from a separate fund.

Do not multiply your list price by 40%. KDP says the price it sells at may differ from yours, for example to match a third party or to discount for Audible members.

What "net receipts" means, by type of sale

KDP splits income into separate types on its pricing page and in the terms, each with its own basis. As read on 8 November 2026:

The Allocation Factor is total member revenue for the accounting period divided by the aggregate regular price of the titles members selected. KDP's pages publish no figure for it.

These two sums show the mechanics. Both are estimates, and the inputs are invented for illustration:

• Cash sale. Suppose Amazon receives $10.00 from a sale after deductions: 40% × $10.00 = $4.00.
• Credit sale. Suppose an Allocation Factor of 0.40 and a $14.99 à la carte price: 0.40 × $14.99 = $6.00 (rounded), and 40% × $6.00 = $2.40.

Change the assumed factor and the second result moves with it, which is why no one can quote a per-credit figure from these pages. The Kindle+ fund pays for the first time a customer reads or listens to each page, so reading and then listening does not earn twice. Your figures appear in KDP Reports under the usual orders and royalties views.

Do not compare KDP's 40% directly with ACX's percentages. ACX's royalty model has its own formula, so the two numbers do not share a base.

KDP Select exclusivity

Exclusivity follows KDP Select. KDP's pricing and terms pages say audiobook enrollment follows the eBook, and the terms page describes a 90-day exclusivity period in which the audio cannot be sold elsewhere. The pricing page also says these titles are not eligible for Free Book Promotions or Kindle Countdown Deals.

The wording reaches further than the virtual voice file. KDP's pricing page says the requirement "applies to any audio edition of the book", and the terms bar selling your book in audio format through anyone else during the period. Unpublishing the audiobook does not end it: exclusivity continues for the rest of the current 90-day period.

Before you place a human-narrated or AI edition on another store, check whether the eBook is in Select, and when its current period ends.

Rights and limits to read before you opt in

On rights, the terms page says Amazon owns the audio file it produces, the author keeps the book's copyright, and Amazon receives a nonexclusive, irrevocable license. Read the terms page yourself before opting in, because these are contract terms.

The same terms page sets other limits. You must hold the audio rights. The book must not consist primarily of public-domain content. Amazon may add, remove or change voices, and may use information you provide to improve its products. It may publicly announce top titles along with author, listens and subscription royalties. It can change the beta terms by posting new ones or by email.

Because this is a beta with an expansion plan and no end date on these pages, avoid building a sales forecast on it. KDP can remove a title at any time.

What it has to do with ACX

Virtual voice is created inside KDP. It is not an upload to ACX, and the two programs have separate rules. ACX's audio submission requirements say submitted audiobooks must be narrated by a human unless otherwise authorized. That page does not say virtual voice is an authorized route, so we do not say so either. Our ACX page covers the ACX rule.

What the pages leave unsaid

Five points stayed open on 2026-11-08:

• Listener-facing label. None of the four KDP pages read states a label; they call the technology "computer-generated speech". See the labelling guide for stores that do state wording.
• KDP's AI disclosure rule. KDP's content guidelines require disclosure of AI-generated text, images and translations and do not mention audio. Whether that rule reaches virtual voice audiobooks is not stated. See KDP AI content disclosure.
• Promotion rules. KDP's pages differ slightly on which promotions are unavailable, so check the live pages.
• Moving to a human edition later. An ACX audiobook blocks virtual voice, but the pages we read do not say whether a virtual voice edition blocks a later ACX production, or what must happen first. Ask KDP before you commission a narrator.
• Exclusivity outside Select. The pages describe exclusivity for Select titles only. They set out no separate rule for a virtual voice title whose eBook is not enrolled.

Who should not plan around it

Skip this route as a plan if you have no invitation, publish outside the US marketplace, or want audio on other stores while enrolled in KDP Select. It also does not fit titles that already have an Audible audiobook or that are public domain. For stores that state they accept AI narration, see which retailers accept AI narration; the full list of rules is in the AI narration rules hub.

This is general information, not legal advice.

Last verified 2026-11-08. Rules and prices change: check the linked primary page before you rely on this.