Emei 4K UHD Broadcasting
Sichuan Emei Film Channel
Uncompressed 4K baseband, 12G-SDI end to end.
China's first ultra-HD baseband broadcasting project on domestically produced video servers with a full 12G-SDI signal chain — file-based UHD playout with real-time technical review and multi-level broadcast safety.
Overview
The Sichuan Emei Film Channel's ultra-HD broadcasting platform uses uncompressed baseband 4K over a full 12G-SDI signal chain, with file-based playout supplemented by live external signals. It is the first domestic ultra-HD baseband broadcasting project to run on domestically produced video servers with 12G-SDI throughout.
Challenge
Broadcasting uncompressed 4K to baseband standard demands an exacting signal chain and rock-solid safety — while pioneering the use of domestic video servers end to end.
Uncompressed baseband 4K
Playing out 4K at original production bitrate and format over 12G-SDI leaves no margin for signal-chain compromise.
Broadcast safety
Continuous, safe playout required real-time monitoring, technical review, and multi-level backup.
Domestic-first hardware
The project pioneered domestically produced video servers across the entire ultra-HD link.
Solution
Sobey delivered uncompressed baseband 4K playout on a full 12G-SDI chain, with domestic video servers throughout. The system supports HD and 4K sources plus 5.1 surround and stereo audio, converts external live signals to 12G-SDI for rebroadcast, and provides process monitoring and file technical review. Real-time equipment monitoring and multi-level security backup assure safe broadcast, wrapped in a fresh, flat, fluid operator interface.
Delivered with
The Sobey solutions and products behind this deployment — each built to work together as one chain.
Result
Emei Film Channel broadcasts uncompressed 4K to baseband standard on a domestically built, 12G-SDI signal chain — a national first, engineered for exacting quality and safety.
China's first uncompressed-4K baseband broadcasting project on domestic servers.
Uncompressed signal chain across the entire link.
Ultra-HD file-based playout with live-signal support.