Japan court rules human voice is protected in TikTok AI case

The Tokyo court's ruling establishes a precedent in Japan by recognizing the human voice as protected under publicity rights, particularly when its commercial appeal is exploited. Judge Aya Takahashi clarified that a voice can be as symbolic of one's personality as a portrait, specifying the conditions under which this protection applies. This is believed to be the country's first ruling of its kind, defining a voice as protected if its purpose is "exclusively to take advantage of its commercial appeal."

While the ruling affirms the legal protection of a performer's voice, it also highlights the practical challenges of enforcement. Tsuda's request for video removal was dismissed because the anonymous user had already taken down the content several months after the lawsuit began. This illustrates how the ephemeral nature of online content can complicate legal redress, even after a favorable judgment on the principle of rights infringement.

This case underscores the growing concern among performers, especially in Japan's animation industry, regarding AI mimicry. The Japan Actors Union, which supported Tsuda, emphasizes that a performer's voice is a honed skill resulting from "years of rigorous training and apprenticeship." Campaigns like "No More" reflect the industry's collective effort to prevent "unbridled" AI voice cloning from spreading on social media and potentially undermining their profession.