EU AI Act disclosure rules for synthetic voice: a creator's guide

If you publish synthetic voice to an audience in the EU, disclosure is becoming part of the job. The EU AI Act introduces transparency obligations for AI-generated media, and synthetic speech is squarely in scope. This is a plain-language orientation for creators, not legal advice, and the details and timelines are still settling, so verify the current rules for your situation.

#What the transparency rule is about

The core idea is simple: people should be able to tell when they are hearing AI-generated or manipulated media rather than a real recording of a real person. The Act leans on disclosure, so that audiences are not misled about whether a voice is synthetic. It is aimed at deception and confusion, not at banning synthetic voice.

#Who this tends to affect

• Creators publishing to EU audiences. Where you are based matters less than where your listeners are.
• Realistic synthetic voice. The more a voice could be taken for a specific real person, the more disclosure matters.
• Content that could mislead. A clearly labelled AI narrator on honest material is low risk; a synthetic voice presented as a real, identifiable person is the opposite.

#A sensible creator baseline

• Disclose that a voice is synthetic where it could reasonably be mistaken for a real recording.
• Use the platform’s synthetic-media labels when they apply.
• Never present a cloned voice as a specific real person without their consent.
• Keep it current: obligations phase in over time, so check the rules the season you publish.

Disclosure is easiest when you have nothing to hide about whose voice it is. Vocast clones your own voice on your own machine, so “this is my synthetic voice” is a true and simple thing to say. The Act is about honesty with your audience, which is a habit worth having whatever the jurisdiction. This is background, not legal advice; confirm the specifics that apply to you.