AI voices and voice clones.

Reviewed

Short answer

A cloned or synthetic voice must be disclosed in the EU when it is used professionally and would pass as a real person speaking: that makes the audio a deepfake under the AI Act, and where there is no picture the Code of Practice uses an audible disclaimer. Voices for clearly fictional characters in audiobooks, games or animation are not deepfakes when listeners are not misled about who is speaking, and technical clean-up such as noise reduction is not one either.

Official sources: Commission guidelines on Article 50, section 6.1 · Code of Practice, Section 2, Sub-measure 1.2.3

Is it a deepfake? Audio examples

Audio examples from the Commission's Article 50 guidelines and EU icons page
AudioResult
AI-generated audio cloning the voices of a newspaper podcast’s regular presenters and a guest, discussing news eventsDeepfake: disclose
A deepfake video whose voices were generated with AIDeepfake: the EU icons page shows the text label “voices generated with” followed by the basic icon
AI voice replication for fictional characters in audiobooks, games or animation, with no deception about who the narrators areNot a deepfake
A radio broadcast with AI-adjusted volume, noise reduction or compression, words and way of speaking unchangedNot a deepfake

For the AI Act, “persons” include personal characteristics such as a voice, and it is enough that the voice resembles someone who exists or could plausibly exist. What decides is whether listeners would be misled into taking it as a real person speaking. The assessment considers the audience you can reasonably expect, including children or older listeners.

How an audible disclosure works

  • An audible disclaimer at the latest at the first exposure, for example at the start of the clip or call (Code of Practice, Section 2, Sub-measure 1.2.3, for signatories).
  • For long or live audio, reminders at regular intervals, and at least after interruptions such as adverts; tones or earcons may support recognition.
  • For evidently artistic or fictional audio offered in an app or on a website, the Code (Commitment 3) allows the disclosure next to the player, as long as people see it without extra clicks.
  • Clips get cut and re-shared: a disclosure only at the very start can be lost, which is why the Code asks for repeats.

Labelling is not consent

Article 50 only says when to disclose. It does not make cloning someone’s voice lawful; the guidelines stress that rights of third parties, such as data protection and intellectual property, must still be respected. From 2 December 2026, Article 5 also bans AI systems used to generate realistic audio, images or video of an identifiable person’s intimate parts or sexually explicit activities without their explicit consent.

A voice agent that talks to people is a second case: it interacts with them, so its provider must tell them they are dealing with an AI (Article 50(1)).

Platform rules for AI voices

What platforms say about AI audio and voices, from their own pages
PlatformRuleSource
YouTubeCloning your own voice for voice-overs or dubs needs no disclosure; making a real person appear to say something they did not does. Non-music AI audio may get a label in the expanded description.YouTube Help
Facebook, Instagram, ThreadsOrganic posts with realistic-sounding audio that was digitally created or altered must use Meta’s disclosure tool; Meta may apply penalties otherwise.Meta
SpotifyVocal impersonation in music is allowed only when the impersonated artist has authorised it; AI voice clones are covered by its impersonation policy.Spotify

Questions

Do I need to disclose a podcast read by an AI voice?
If listeners would take the voice for a real person speaking, treat it as a deepfake and disclose it, for example with an audible line at the start and after breaks. The guidelines give AI voices for clearly fictional characters, with no deception about who the narrators are, as an example that is not a deepfake.
Can I clone my own voice?
The AI Act does not forbid it; whether the result must be disclosed depends on whether listeners are misled into taking it as real speech. YouTube says cloning your own voice for voice-overs or dubs needs no disclosure on its platform.

Sources

Last reviewed by Volkan Çatak, Founder, Proofcan.

Not legal advice. This page explains official texts in plain words and links each one; check the sources, or a lawyer, before relying on it for a decision.