vm__udx – 4K / HDR Format Converter for the V__matrix Platform

The vm__udx virtual module is a software application (app) that provides format conversion between SD, HD, 3G and 4K / UHD formats in the V__matrix eco-system when loaded on a c100 core processing module.  In addition to up, down and cross conversion the vm__udx also provides audio embedding/de-embedding, proc amp and RGB/YUV color correction and color space conversion (SDR to/from HDR) functionality.

Fundamentally designed with IP networking in mind the vm_udx app natively supports both ST2022-6 and ST2110-20 IP video as well as ST2110-30/AES67 and RAVENNA IP audio streams. Conversion between IP video and IP audio standards is also possible, e.g. ST2022 to ST2110. To ensure high availability ST2022-7 hitless protection switching is natively supported.

The vm__udx app provides four independent paths of format conversion between SD, HD and UHD for IP and/or SDI signals. Conversion between SD, HD and 3G formats use one path while conversion to/from UHD uses four paths.

Each path provides audio embedding/de-embedding/shuffling functionality. Audio gain, delay and sample rate conversion can be accessed through independent processing blocks which can be inserted at any point of the processing chain.  Equally, eight instances of broadcast quality RGB and YUV color correction and video proc are also available as processing blocks for use by any video source whether it’s SDI or IP and available both pre- and post-format conversion.

A second format conversion engine can be unlocked with the +4UDX option doubling the amount of conversion capabilities in the C100.

The +HDR option enables four instances of SDR<->HDR color space conversion using 3D LUTs. A large selection of LUTs especially developed for live production are included and custom LUTs can also be uploaded and used. The included LUTs allow for conversion between SDR and HDR in HLG and PQ.

With the optional io_bnc rear-plates for the C100, connection to legacy SD-, HD-, 3G- and UHD-SDI is possible. The vm_udx supports both single-link 12G-SDI as well as quad-link (2SI).


  • 4 instances of Up/Down/Cross conversion between SD/HD/4K (1 instance when converting to/from 4K)
  • Additional 4 instances available with the +4UDX option
  • HDR <-> SDR conversion with the +HDR option
  • Audio mono matrix with full audio embedding/de-embedding and shuffling between SDI/IP, IP/IP and SDI/SDI with SMPTE2110-30/RAVENNA/AES67
  • Includes RGB/YUV color correction and proc-amp
  • 4K 12G-SDI single-link inputs/outputs when combined with the io_bnc rear-plates
  • Built-in programming, configuration and streaming telemetry capabilities
  • Simple management and control through Lawo vsmStudio makes operation imperceptible from a traditional baseband environment while maintaining all of the benefits of an IP system
  • NEW: +HDR Option: The new +HDR option adds professional quality High Dynamic Range (HDR) to Standard-Dynamic Range (SDR) conversion using 3D LUTs for both HLG and PQ formats to the vm_udx app.



Subject to change without prior notice, no responsibility is taken for the correctness of the details provided.

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