CD Projekt used AI to modify the voice of Geralt's Polish actor after a stroke left it significantly changed: 'This was a special case'
Jacek Rozenek was the voice of Geralt in all previous Polish-language Witcher releases, and CD Projekt wanted to work with him again—but his voice is no longer a match.
CD Projekt used AI to modify the voice of Polish actor Jacek Rozenek, who voiced Geralt in The Witcher 3, after a stroke left his voice significantly different. Rozenek suffered a stroke in 2019, which left him temporarily unable to speak and took time to recover. When CD Projekt decided to make a new Witcher 3 expansion, they wanted Rozenek back for the role, but his changed voice presented a problem.
CD Projekt approached AI voice company Respeecher to rework Rozenek's voice for the game. The task was to make Rozenek's voice sound like it did a decade ago, while capturing his emotional range and high audio quality. Rozenek feels good about returning to the role, as the issue was mainly his changed voice. This is not the first time CD Projekt has used Respeecher, as they previously used the company to reproduce the voice of Miłogost Reczek, who died in 2021.
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