Jacek Rozenek voice deepfake — Nov 2026
CD Projekt Red used AI to restore actor Jacek Rozenek's vocal timbre for a Witcher 3 expansion following his 2019 stroke with his consent
- Reported date
- Nov 12, 2026
- Target
- Jacek Rozenek
The exact incident date was not established. This entry is dated by its source report.
What happened
CD Projekt Red confirmed that the upcoming expansion, The Witcher 3: Songs of the Past, utilizes AI to adjust the Polish voice of Geralt of Rivia. The studio partnered with the Ukrainian AI company Respeecher to modify recordings provided by actor Jacek Rozenek. This process was implemented to restore Rozenek’s vocal timbre to match his earlier performance in the base game, following a stroke he suffered in 2019 that altered his voice.
The production followed a specific two-stage workflow: first, Rozenek recorded all new dialogue himself, ensuring the performance, timing, and emotional intent remained human-driven. Second, Respeecher processed these recordings to shift the sound toward his original vocal texture. CD Projekt Red emphasized that this was a "special case" and established a policy stating they will not use AI to alter a voice actor's performance without express permission. Rozenek has publicly expressed his trust in the developers, framing the technology as a restoration tool rather than a replacement.