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1. Re: HD downconverted to DV quality?
Harm Millaard Oct 30, 2009 10:26 AM (in response to jdmoor)The best way is to downconvert in camera. Easy, simple to edit and you still have HDV source for BRD delivery.
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2. Re: HD downconverted to DV quality?
jdmoor Oct 30, 2009 10:47 AM (in response to Harm Millaard)Harm,
When down-converting in the camera, is there any 'gain' in quality vs.
recording in SD?
jd
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3. Re: HD downconverted to DV quality?
Harm Millaard Oct 30, 2009 10:50 AM (in response to jdmoor)The gain is in the fact that your original material is still HDV instead of SD.
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4. Re: HD downconverted to DV quality?
JSS1138 Oct 30, 2009 11:33 AM (in response to jdmoor)There can be quality degredation, yes.
For starters, the HDV codedc can introduce artifacts that would not be there when shooting in DV, especially with high motion or other difficult to encode subject matter.
Second, any scaling will introduce another possibility for artifacts.
If all you need is DV, make your life easy and shoot DV.
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5. Re: HD downconverted to DV quality?
John T Smith Oct 30, 2009 12:21 PM (in response to jdmoor)Also, Tutorial HD to SD w/CS4 http://bellunevideo.com/tutorials/CS4_HD2SD/CS4_HD2SD.html
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6. Re: HD downconverted to DV quality?
jdmoor Nov 4, 2009 7:17 PM (in response to John T Smith)Hi John,
I was reviewing the link you provided above. When talking about downscaling HDV1080i(60i) to SD, there was a comment stating "our source footage is upper fieldfirst". I have always thought the standard, at least here in the US, NTSC is always "lower field first".
Do you know if when outputing our edited DV footage should we use the the "upper field" or "lower field" first option?
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7. Re: HD downconverted to DV quality?
Jeff Bellune Nov 4, 2009 7:24 PM (in response to jdmoor)What field order is your source footage?
-Jeff
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8. Re: HD downconverted to DV quality?
jdmoor Nov 4, 2009 7:32 PM (in response to Jeff Bellune)Jeff,
I'm not sure .. I have always assumed it's lower field first. I shoot both Canon XL's and the Sony HVR-HD1000u ... the are of course 'standard' NTSC cams. Is there someway to tell for sure if a camera is shooting upper or lower fields first?
jd
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9. Re: HD downconverted to DV quality?
Jeff Bellune Nov 4, 2009 7:52 PM (in response to jdmoor)*DV* is always lower field first. *HDV* 1080i60 is upper field first. If your intended destination is DVD then you should encode to MPEG2 DVD with upper field first.
-Jeff
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10. Re: HD downconverted to DV quality?
jdmoor Nov 4, 2009 8:02 PM (in response to Jeff Bellune)Oh .. ok, you turned on the light for me.
I'm just starting to do some HDV stuff .. still not knowledgeable about it.
I knew 'lower field first' had been the rule forever .. but all I knew was
DV. This Sony cam shoots HDV1080i ... I shot some test footage and was
doing some test editing. I don't have a HDV burner....but HD is getting to
be popular enough it's time to get into the game I guess.
Thanks for the info. Do you have a suggestion for reading materials
(books) on HDV, the difference in edit settings, etc.?
Thanks again,
jd



