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Join Date: Sep 2000
Location: Los Angeles, CA
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Another option, though more complex, is to use a broadcast decoder and feed the DVDO SDI. I use a Techniche DX210 which is actually a British product.
The king of high quality decoders, if you can find one, is the Accom DB221. This unit is a frame based comb filter but is switchable to line mode as well. Note this may only have a parallel digital output which will need an external serializer such as an old Miranda or AJA module. The Accom also has two frames of video delay when in frame comb mode so you would need to deal with that somehow if audio lip sync is important..
Just note that not all broadcast decoders are high quality. There were also plenty of utility grade units made for less critical needs such as news remote feeds to SDI.
These ultra high quality decoders such as the Techniche and Accom were mostly used in post production during the transition from NTSC to component digital in the 1990s and are obsolete today. There is no more R&D going into decoder and comb filter technology as NTSC is now dead from a broadcast prespective as well. Thus they can be found cheap or even free.
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