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Miranda Launches DVI-Ramp

1U rackmount system converts DVI output to HD/SD By Dave Nagel
Miranda Technologies today launched DVI-Ramp, a new 1U rackmount device designed to convert standard DVI output from a computer's graphic card to SD and HD signals for use with external studio monitors or video mixers. DVI-Ramp is available now for Macintosh and Windows systems.

Using the DVI-Ramp, output from the computer's graphics card is routed via single or dual DVI connections. According to Miranda, the DVI-Ramp uses pixel to pixel mapping to extract the portion of the graphics signal appropriate for the HD or SD video format. The digital RGB signal is then converted to 4:2:2 using the appropriate color matrix, and the signals are output as HD SDI or SDI. Other features include:

  • Separate programmable gamma LUTs for the DVI and the digital video signal outputs;
  • RGB (4:4:4) to YCbCr (4:2:2) color space conversion with programmable matrix;
  • RS-232/422 control port;
  • Selectable SD (NTSC/PAL) or HD (tri-level sync) reference input with passive loop-through;
  • TTL-level SYNC output to synchronize workstation graphic card.

Miranda says the device is available now, though pricing and ordering information was not available on the company's Web site at press time. For more information, visit

Contact the author: Dave Nagel is the producer of Creative Mac and Digital Media Designer; host of several World Wide User Groups, including Synthetik Studio Artist, Adobe Photoshop, Adobe InDesign, Adobe LiveMotion, Creative Mac and Digital Media Designer; and executive producer of the Digital Media Net family of publications. You can reach him at

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