How Marius Quast is going global — with Dubly.AI and YouTube Multi-Language Audio

Marius Quast is the leading ski and outdoor YouTuber in the DACH region — known for high-quality touring videos, gear reviews, and alpine adventures. His content is visually stunning, technically sound, and told in a personal, relatable way. The community? Strong — but until recently, almost entirely German-speaking.

Yet more and more comments and requests were coming from abroad: “Please make this in English!” “Where can I watch with subtitles?”

The demand was clear — but manually localizing the content into multiple languages would have required massive effort and likely disrupted the style. The goal was to expand international reach without losing the unique character of the videos.

Through a strategic partnership with Dubly.AI, Marius Quast’s entire video channel was opened up to the international market. Using YouTube Multi-Language Audio and Dubly’s AI-powered technology, selected videos are now available in 9 languages — featuring Marius’s original voice, precisely translated, lip-synced, and polished by native speakers.

Instead of dubbed voices or subtitles, viewers around the world experience the content in their own language — with the familiar tone and authenticity they know. All translations were fine-tuned through Native Speaker Control, ensuring accuracy in outdoor-specific terminology, regional references, and emotional delivery.

The impact was immediate: The channel saw a +590% increase in international views after introducing multilingual audio tracks. Hundreds of enthusiastic comments from viewers around the world now appear under the videos.

But it wasn’t just the audience that became more international — new partnerships with multinational outdoor brands also became possible, thanks to scalable global content distribution. For Marius Quast, Dubly.AI was the key to turning a nationally successful channel into an international platform for outdoor enthusiasts.