MP-STUDIO Powers Bulgaria Pavilion at Expo
2025 with Vioso’s Cutting-Edge AV Solutions

When Expo season arrives, delivering a “wow” factor is essential for any national pavilion—and the Bulgarian pavilion was no exception. For this year’s event, the challenge of crafting a memorable, tech-driven experience was taken on by MP-STUDIO, a Sofia-based experiential company known for its expertise in 3D projection mapping and visual effects. With audiovisual technology at the heart of the installation, MP-STUDIO turned to its trusted partner, Vioso, to supply the systems that would bring the vision to life.

The exhibit was divided into three main sections: “The Past,” “The Present,” and “The Future.”

“The Past” embraced the analog charm of history, showcasing Bulgaria’s rich cultural heritage through traditional display methods.

“The Present” transitioned into the digital realm, powered by EXAPLAY™ running on Vioso’s newly launched Anystation Pico players. These ultra-compact devices each output two WUXGA signals, allowing just seven units to seamlessly drive 14 wall-mounted monitors. A central Pico server handled synchronization via OSC commands, enabling smooth playback across a single expansive canvas or multiple independent video streams.

“The Future” presented the most dynamic and innovative part of the pavilion—a fully immersive space where visitors could interact with their surroundings and contribute “messages for the future.” Spanning an area of 160 sq. m. meters, the environment relied on Vioso’s ProjectionTools™ autocalibration software and four calibration cameras to achieve a flawless blend across 14 projectors. A custom-built Vioso Anystation server, equipped with an Nvidia A6000 GPU, powered EXAPLAY™ to deliver four 4K signals via HDBaseT matrix switchers, ensuring crisp, synchronized visuals.

What truly set the experience apart was its use of AI. Visitors could scan a QR code to submit their messages via a website, which then relayed them to an AI system that generated real-time responses. These were instantly displayed on screen using NDI to feed content directly into the EXAPLAY™ playback engine. At the conclusion of the Expo, all visitor messages could be collected to form a digital archive of collective hopes and ideas for the future.

Reflecting on the installation, Marin Dimitrov, CEO of MP-STUDIO TECH (the AV division of MP-STUDIO), shared:
“We’re proud to be among the first to implement such a large-scale setup using Vioso’s new Pico servers and EXAPLAY™ platform.”

He continued, “We pushed the software to its limits and were genuinely impressed by its performance. EXAPLAY™ provided everything we needed—playback, timelines, NDI and OSC control, and synchronization—all without the complexity of larger media servers.”

Raul Vendeburg, Executive Director of Vioso, who was on-site during the installation, shared his enthusiasm:

“It’s incredibly exciting to see our new EXAPLAY™ solution play such a central role in the pavilion. We developed it to offer a streamlined, user-friendly interface that covers the majority of needs in installations like this—while still supporting advanced capabilities like HAP-encoded content playback.”