FOX Sports wraps ST 2110 audio in SRT for World Cup 2026
FOX Sports is utilizing SMPTE ST 2110-30 audio encapsulated in SRT wrappers transmitted via Appear X20 hardware for its 2026 FIFA World Cup remote production. This technical workflow addresses the challenge of maintaining synchronized audio transport over unmanaged networks between remote locations in Dallas and Pico.
Key Takeaways
- Uses Appear X20 hardware to uplink and wrap uncompressed ST 2110-30 audio in Secure Reliable Transport (SRT) for signal stability.
- Synchronizes 64 channels from the IBC in Dallas and 16 channels from each BRISK remote studio kit with concurrent video.
- Deploys AES67 Unicast RTP for trunking integration between Riedel comms frames at different facility environments.
- Utilizes Calrec ImPulse FPGA DSP hardware to allow engineers in Los Angeles to perform pre-fader listening on remote channel strips.
- Maintains JPEG-XS embedded audio as the primary on-air source while using the SRT-wrapped streams for backup and quality control.
Why It Matters
This implementation solves the persistent industry challenge of maintaining uncompressed audio synchronization and phase alignment over unpredictable long-haul networks. By nesting a low-latency production standard (ST 2110) inside a reliable transport protocol (SRT), FOX Sports creates a blueprint for handling massive scale without dedicated private fiber between every venue. This hybrid approach signals a shift toward agile IP-based 'home run' productions that can be redeployed across different sports without reconfiguring hardware. Experts should watch if this specific wrapping technique becomes a standardized feature in future gateway hardware to further lower the barrier for remote high-fidelity audio production.
Additional Context
The 2026 FIFA World Cup represents a significant scaling up of remote production (REMI) infrastructure, covering 104 matches across 16 host cities in three countries. Per Appear and TV Technology (April 2026), FOX Sports is utilizing a unified foundation involving both X20 and X5 platforms to support large-scale IP workflows and its 'Jewel Events' production system. This shift coincides with a broader industry trend; per the Haivision 2026 Broadcast Transformation Report, SRT adoption has reached 78% of broadcasters, while SMPTE ST 2110 usage grew to 30% this year. These protocols are increasingly being used to replace aging SDI-based infrastructures that cannot cost-effectively handle the bandwidth required for modern 4K and HDR workflows. To manage the geographic sprawl of the 2026 tournament, FOX Sports developed the Broadcast Remote IP Studio Kit (BRISK), a portable flypack that integrates with its permanent facilities in Los Angeles. According to NewscastStudio (June 2026), these units rely on JPEG XS compression to maintain high video quality with minimal delay, allowing the network to operate out of its Stage B LED volume—the largest live multi-camera volume of its kind. Per FOX Sports (January 2026), the network is planning over 340 hours of first-run programming for this event, a 100-hour increase over 2022, necessitating the technical efficiencies provided by the ST 2110 and SRT hybrid workflow. Beyond just transport, the move to uncompressed audio over IP (AoIP) allows for more complex DSP processing at a distance. Per BBright (December 2025), the broadcast industry entered a 'post-SDI phase' where ST 2110 serves as a comprehensive workflow platform enabling immersive audio formats and synchronized metadata. The ability to route 64 channels of uncompressed audio via SRT ensures that FOX Sports' engineers can manage hundreds of individual IFB (Interruptible Foldback) programs and commentary feeds for more than 1,200 production personnel across the continent without the phase-sync issues that typically plague long-distance audio over IP.
Read full article at sportsvideo.org
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