CD Projekt Red is using AI voice technology to adjust Geralt of Rivia’s Polish dialogue in The Witcher 3: Songs of the Past, its upcoming expansion scheduled for 2027. Original Polish voice actor Jacek Rozenek is recording the new lines himself, with AI processing helping his performance sound consistent with dialogue recorded for the original game more than a decade ago.
The arrangement was revealed in a November 11, 2026, Game File report by Stephen Totilo, featuring original interviews with Rozenek and CD Projekt Red localization producer Mikołaj Szwed. The studio is collaborating with voice technology company Respeecher to process the recordings with Rozenek’s knowledge and approval.
The decision follows significant changes to the actor’s voice after he suffered a stroke in 2019. Although Rozenek recovered and returned to acting, his voice now sounds noticeably different from the recordings players heard when The Witcher 3 launched in 2015.
CD Projekt Red wanted to preserve the familiar sound of Geralt without replacing the performer responsible for establishing the character’s Polish voice.
Rozenek previously returned to the role in 2021 to record dialogue for a quest included in The Witcher 3’s 2022 next-generation update. However, the recording process was physically demanding during his recovery.
The actor subsequently continued rebuilding his vocal abilities, allowing him to return to professional performance.
For Songs of the Past, the challenge extends beyond recording an entirely new adventure. The expansion integrates with the existing Witcher 3 experience, meaning newly recorded dialogue will appear alongside thousands of lines captured more than ten years earlier.
Szwed explained to Game File that the expansion also introduces additional reactions, combat sounds and short dialogue lines that can play in areas already present in the original game.
That creates situations in which players could hear Geralt’s older and newer recordings close together, making differences in the actor’s voice particularly noticeable.
During a studio meeting approximately a year before the report, CD Projekt Red assessed Rozenek’s current performance and found that his voice had become deeper and rougher. The developers subsequently explored technology that could bring the new recordings closer to the original performance.
Rather than generating Geralt’s dialogue independently of the actor, the production uses Rozenek’s newly recorded performances as its foundation. Respeecher’s technology helps adjust the resulting voice to better resemble his earlier work.
Rozenek has explicitly approved the approach and expressed confidence in the developers. Speaking to Game File, he explained that the objective is to make his present-day performance sound as close as possible to the voice he recorded approximately 12 years ago.
CD Projekt Red has also emphasized the importance of consent and human involvement when using AI in voice production. Szwed characterized the arrangement as a special case, reflecting both the actor’s circumstances and the studio’s desire to retain his performance.
The distinction is significant because the technology is being used to modify recordings supplied by the original actor rather than replace him with an entirely synthetic performance.
The process is specific to Geralt’s Polish-language dialogue. Doug Cockle, who voices Geralt in English, is not receiving the same AI treatment for the expansion.
Songs of the Past was announced in May 2026 as the third major expansion for The Witcher 3: Wild Hunt, with CD Projekt Red and Fool’s Theory collaborating on development.
The expansion takes Geralt to Letten, a new region associated with his longtime companion Dandelion. Players will investigate a hidden threat beneath the region’s peaceful appearance, encounter new monsters and gain additional combat options, including a chain weapon and new mutagens.
Songs of the Past is scheduled to launch in 2027 for PC, PlayStation 5, Xbox Series X|S and Nintendo Switch 2. CD Projekt Red has not announced a specific release date.
The newly disclosed voice production process provides additional detail about how the studio is bringing Geralt back into an established game while maintaining continuity with performances recorded more than a decade earlier.
