15 jul 2005

link missing between HDV and the HDTV broadcast

NAB2004 Daily News Online: "Miranda Merges HDV-HDTV Gap
By Geoff Poister
TV TECHNOLOGY
Miranda Technologies, a provider of solutions for the broadcast and post-production industries, has set its sights on HDV as the next wave.
However, there is a link missing between HDV and the HDTV broadcast realms that needs to be mended. HDV is an MPEG-2 format that doesn't interface easily with the existing HDTV formats.
'That's basically what Miranda does,' said Michel Proulx, senior vice president of product development. 'We find problems in the broadcast industry and develop solutions.'
HD BRIDGE
The main solution of the day for Miranda is the HD-Bridge DEC, an unassuming little box that solves a big problem. That is, it converts the HDV format into HD-SDI and also allows a 1080i/720p conversion. The simple conversion is particularly helpful given that the Sony HDV camera records 1080i, while JVC cameras record 720p.
Proulx described several ways the conversion box merges the gap between HDV acquisition and editing and distribution.
One application is to run an IEEE-1394 cable from the camera, pass through the HD-Bridge DEC and go directly to disk storage as HD-SDI with embedded audio and timecode.
Another solution overcomes one of HDV's current weaknesses - the somewhat cumbersome MPEG-2 editing. Using Miranda's HD-Bridge DEC, one can transfer footage captured on an HDV camera and send it uncompressed into and HD-SDI uncompressed editing system. Once in the HD-SDI form, existing editing systems will handle the material as HD-SDI, with full real-time capabilities.
And, for editing in the native HDV format, the final edited video can be outputted to an HD VTR in HD-SDI for distribution in any existing format.
Finally, the box can be used by broadcasters to send HDV material directly to on-air playout."

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