Witcher 3 Uses AI to Restore Geralt’s Original Voice
The Witcher 3 is getting a new expansion in 2027, and the Witcher 3 Geralt AI voice will sound like he did a decade ago. Actor Jacek Rozenek has agreed to let AI adjust his new lines to match his original performance.
Rozenek has voiced Geralt in Polish since the first Witcher game, recording about 10,000 lines for The Witcher 3 in 2014, then returning for the Hearts of Stone and Blood and Wine expansions. A stroke in 2019 left him unable to speak for months. He recovered, but his voice is now lower and gruffer than the one players heard in 2015.
That created a problem for Songs of the Past. The story takes place during the same period as the main game, so new lines can play right beside dialogue recorded more than a decade ago.
Witcher 3 Geralt AI voice: matching Rozenek’s younger voice
Rozenek still recorded every new line himself. CD Projekt Red then sent the recordings to Respeecher, a Ukrainian AI voice company, which reshaped the sound to sit beside his old recordings.
Respeecher trained its model on the lines Rozenek recorded for the original game. The tool changes the tone of the recording, not the performance, so his delivery, emotion and timing stay intact.
Rozenek gave his full approval. “The point is that this voice should be as close as possible to my voice from 12 years ago,” he told Game File. He has not listened to the finished result, and says he has no plans to do so. Kotaku and Video Games Chronicle both reported the interview in full.
The actor knows the hard work behind the return. He trained his voice for six or seven hours a day in recovery and returned for a quest in the 2022 next-generation update. “I was so exhausted after this recording,” he said of that session.
Why consent sits at the centre of the story
Szwed told Game File that the studio would not use AI to alter a voice without the express permission of that actor. He called this case a special one, driven by Rozenek’s health, and added: “This is one of those ways where you can use AI ethically, with consent and also to do something good.”
Respeecher worked with the studio before, on Cyberpunk 2077: Phantom Liberty, where it recreated the voice of an actor who had died, with consent from the estate. The company says it needs written consent before it clones a voice.
Doug Cockle, the English voice of Geralt, is recording the expansion normally, without any AI adjustment. The AI work applies only to the Polish lines.
What Songs of the Past will bring
Songs of the Past is a paid expansion for The Witcher 3, due in 2027 on PC, PlayStation 5, Xbox Series X and S, and Nintendo Switch 2. CD Projekt Red is making it with Fool’s Theory. It takes Geralt to a new region called Letten, with new quests, monsters, mutagens and a returning chain weapon.
The expansion also adds reactions, battle cries and one-liners in familiar parts of the map. That is why the voice match matters: a line recorded in 2026 could play seconds after one from 2014.
The Zelda Ocarina of Time remake sold 5.2 million copies in four days, and GTA VI downloads began ahead of its November 19 launch. For Witcher fans, hearing Geralt sound like himself again will be the real test.
The case shows one way to use AI with an actor’s blessing, rather than around him. GSMA grants of up to £250,000 are open to Pakistani startups using AI, and AI training is reaching rural Pakistan, though barriers remain.
Frequently asked questions
Why is AI being used on Geralt’s voice in The Witcher 3?
A stroke in 2019 left Jacek Rozenek’s voice lower and gruffer. The expansion is set during the original game, so his new lines must match recordings from a decade ago.
Did Jacek Rozenek agree to the AI voice work?
Yes. Rozenek gave his full consent, and CD Projekt Red says it would not use AI on a voice without the actor’s express permission. He recorded all of the new lines himself.
Which company is doing the AI voice work?
Respeecher, a Ukrainian AI voice company. It trained a model on Rozenek’s original Witcher 3 lines and previously worked on Cyberpunk 2077: Phantom Liberty.
When does The Witcher 3: Songs of the Past release?
The expansion is due in 2027 on PC, PlayStation 5, Xbox Series X and S, and Nintendo Switch 2, with no exact date yet.
Does the AI affect the English voice of Geralt?
No. Doug Cockle, the English voice of Geralt, is recording normally, without AI adjustment. The AI work applies only to the Polish lines.
