Barry Green |
September 19th, 2006 12:58 PM |
Quote:
Originally Posted by Craig Irving
All the documentation on that Sony page seems to indicate that everything is processed at 4:2:2 using EIP, is this correct?
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The 960x1080 chips are scanned into a 1920x1080x4:2:2 matrix. But the only place that 1920x1080 signal exists is internally. There's no way to get that out.
Quote:
Or will it still be recorded to tape at 4:2:0 (DV limitation).
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Well, when you say "DV" limitation, you're talking about standard-def, and in standard-def this unit will be 4:1:1 (because it's NTSC DV/DVCAM). In high-def mode the HDV format is only available in 4:2:0. So all recordings on tape or through the firewire port will be 1440x1080x4:2:0.
Quote:
And furthermore, has it been confirmed whether or not we can bypass that DV limitation by recording straight to the HDD?
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Hard disk will also be MPEG-2 compression at 4:2:0. (and presumably standard-def at 4:1:1)
According to the chart on their website ( http://bssc.sel.sony.com/Broadcastan...EipSignal2.gif) the signals start on the chips and go through a "Sony original interpolation Process" to become 1920x1080. Then, before any output occurs, it goes through a "Resolution Conversion Process" to become 1440x1080. Now here's where things get interesting: it shows that the resolution conversion process yields 1440x1080ix4:2:2, which goes to the component outputs and to the HDV compression engine. HDV will process that into 4:2:0 for recording on tape or onto hard disk, but what about that "component output"... on analog component output it's not any different than any other camera out there, but what about HDMI? Is that going to be an actual digital 1440x1080x4:2:2 digital HDMI signal? If so, will someone develop (or has someone already developed?) an HDMI->HDSDI converter box to allow uncompressed 4:2:2 digital HD recording?
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