Cinnafilm 6.6.19

Cobalt Digital’s card-based solution for 4K/HDR conversions

Cobalt Digital was at NAB showing with card-based solutions for openGear frames for 4K and HDR workflows. Cobalt’s 9904-UDX-4K up/down/cross converter and image processor offers an economical SDR-to-HDR and HDR-to-SDR conversion for 4K.

John Stevens, director of engineering at Burbank post house The Foundation, calls it “a swiss army knife” for a post facility.

The 9904-UDX-4K upconverts 12G/6G/3G/HD/SD to either UHD1 3840×2160 square division multiplex (SDM) or two-sample interleave (2SI) quad 3G-SDI-based formats, or it can output SMPTE ST 2082 12G-SDI for single-wire 4K transport. With both 12G-SDI and quad 3G-SDI inputs, the 9904-UDX-4K can downconvert 12G and quad UHD. The 9904-UDX-4K provides an HDMI 2.0 output for economical 4K video monitoring and offers numerous options, including SDR-to-HDR conversion and color correction.

The 9904-UDX-4K-IP model offers the same functionality as the 9904-UDX-4K SDI-based model, plus it also provides dual 10GigE ports to support for the emerging uncompressed video/audio/data over IP standards.

The 9904-UDX-4K-DSP model provides the same functionality as the 9904-UDX-4K model, and additionally also offers a DSP-based platform that supports multiple audio DSP options, including Dolby realtime loudness leveling (automatic loudness processing), Dolby E/D/D+ encode/decode and Linear Acoustic Upmax automatic upmixing. Embedded audio and metadata are properly delayed and re-embedded to match any video processing delay, with full adjustment available for audio/video offset.

The product’s high-density openGear design allows for up to five 9904-UDX-4K cards to be installed in one 2RU openGear frame. Card control/monitoring is available via the DashBoard user interface, integrated HTML5 web interface, SNMP or Cobalt’s RESTful-based Reflex protocol.

“I have been looking for a de-embedder that will work with SMPTE ST-2048 raster sizes — specifically 2048×1080 and 4096×2160,” explains Stevens. “The reason this is important is Netflix deliverables require these rasters. We use all embedded audio and I need to de-embed for monitoring. The same Cobalt Digital card will take almost every SDI input from quad link to 12G and output HDMI. There are other converters that will do some of the same things, but I haven’t seen anything that does what this product does.”


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