EN/中文
China News Service is China’s state-run news organization focused on international reporting, serving as an international news service with overseas Chinese, compatriots in Hong Kong, Macao, and Taiwan, and foreigners with ties to China as its key audiences.
Customer requirements
Technical Solution for Real-Time AV Signal Interconnection Between Conference Hall and Studio on different floors
Signal Transmission Requirements Conference Hall to Studio Control Room:
All HD video signals from conference hall cameras are upconverted to 4K for transmission to the studio control room.
Signals are routed to:
Hardware production switcher
LED wall controller (HDMI interface only).
Audio mixer (via dedicated audio routing).
Studio to Conference Hall Control Room:
All 4K video signals from studio cameras are downconverted to HD for transmission to the conference hall control room.
Signals are routed to:
Hardware production switcher
LED wall controller (HDMI interface only).
Audio mixer (via dedicated audio routing)
On-site challenge
•Different floors, requiring real-time performance, solving the problem of long-distance AV transmission.
•The production switcher and LED screen receive signals simultaneously, solving interface compatibility and signal distribution challenges.
• To unify formats when mixing and switching between HD and 4K production/display systems
Design Philosophy
Given the requirements for long-distance transmission and real-time performance, fiber optics is the most suitable solution. Additionally, format conversion and interface adaptation must be addressed. Therefore, this solution adopts a core architecture based on baseband optical transmission combined with frequency conversion and interface transformation technologies.
System Signal Flow Topology
There are two Studio Edge 5CH units installed in the conference broadcast room and the broadcast control room, respectively.
Signal Processing & Production:
1. Conference Room to Studio Room
•Conference Room Setup: HD cameras (SDI) and audio inputs are upscaled to 4K via Studio Edge and transmitted via fiber to the broadcast control room.
•Broadcast Control Room: Studio Edge receives the optical signal, outputs 12G-SDI to the production switcher, converts interfaces to HDMI for the LED wall processor, and de-embeds audio for the mixing console.
2. Studio Room to Conference Room
•Studio Room: 4K cameras (12G-SDI) and audio are downscaled to HD via Studio Edge in the Studio Room and transmitted via fiber.
•Conference Broadcast Room:Studio Edge receives the optical signal, outputs 3G-SDI to the production switcher, converts interfaces to HDMI for the LED wall processor, and de-embeds audio for the mixing console.
Up to October 2025, Studio Edge has been operating stably in the China News Service for nearly 2 years, and has been highly praised by the client for its convenience, flexibility, and stability. Studio Edge has also demonstrated excellent performance in terms of signal transmission speed, transmission quality, and after-sales services, becoming reliable support for the project.
The Edge Series has achieved strong global sales and participated in many major events, including the 2025 Military Parade. Adopted by organizations such as Xinhua News Agency, IMF (International Monetary Fund), SPH Media, Arthrex, MGM, and Alibaba, it has gained recognition from clients worldwide.
StudioEdge's Uniqueness
Ultra Long Distance, Flexible Deployment
Each channel of Studio Edge supports optical transmission or reception with speeds up to 12-25GB/s, enabling seamless handling of large-scale video signal transmission. With a transmission distance of up to 20km, it ensures stable and efficient signal delivery even over long distances between locations. Whether across different city corners or remote sites, Studio Edge guarantees uninterrupted signal transmission.
IP Solution
Additionally, Studio Edge supports NDI encoding/decoding. As long as cables and switches are connected, it can IP-process SDI/HDMI signals from cameras to generate NDI streams. Alternatively, Studio Edge can decode NDI streams into SDI/HDMI signals for output. This provides a flexible and highly integrated solution for building new intelligent multimedia IP studios.
Scroll Wheel Operation
More Flexible Parameter Configuration
During operation, users can switch between HD and 4K formats via Studio Edge’s scroll wheel, configure the transceiver mode of the optical transmitter/receiver, and modify other parameters.
Multi Function Synchronization，More Efficient Signal Processing
Optical transmission/reception, full NDI encoding/decoding, up/down cross conversion, and SDI-to-HDMI format conversion are seamlessly synchronized, thus improving the efficiency of signal processing and enhancing the adaptability, flexibility, and compatibility of devices in diverse scenarios.
2/4/6 Channels, Configuration As Needed
Studio Edge offers three models: 2-, 4-, and 6-channel configurations.
Each channel supports up/down cross conversion and optical transmission and reception.
Simplifies engineering project deployment.
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