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can firewire capture variable data rate
i work with mini dv tape….and using firewire to capture all footage..
but with 3.6 mb/s its to low resolution….i need to capture 8 mb/s….with firewire….can i do it?
and which codec should i choose to get that?ps: i use FCP 5…G5..
sony DSR 45
and work under PAL system..thanks
thx
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15 Replies
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[kripix] “with 3.6 mb/s its to low resolution….”
Too low for what?
Firewire only allows capture of digital video as it exists on tape. DV tape captured via firewire will yield DV quality video, no more, no less. If you desire to capture to another format such as 8-bit uncompressed, you must have a capture card like Blackmagic or Kona. You can always capture DV via firewire and convert using the codec of your choice, but that can be pretty time-consuming.
DRW
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Hi
Another question to add.
[David Roth Weiss] “DV tape captured via firewire will yield DV quality video, no more, no less.”
If I capture DV tape using 8 bit does it improve the quality of the footage?
Cheers
Zee.
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Your quality will not be any better. It is only as good as your original.
Steve Eisen
Eisen Video Productions
Director-At-Large
Chicago Final Cut Pro Users Group -
And to answer the original question, you can capture DV 25, DVC Pro 50, and DVC Pro HD (100) over firewire.
Steve Eisen
Eisen Video Productions
Director-At-Large
Chicago Final Cut Pro Users Group -
Bitrates and actual bitrates are always different in FCP. DV25 records to FCP around 3.6 mb/s, DV50 is around 6.2 mb/s, and it goes higher for each increase. Uncompressed 8-bit HD is around 162 mb/s.
Just beacuse its DV25 doesn’t mean that it plays back at 25 mb/s. Remember the computer files are compressed and when you play back the video it decompresses the video on the fly to its maximum possible for that clip. Therefore a DV25 clip that is 3.6 mb/s will decompress and play bak at 25 mb/s on the fly but your file is still actually at 3.6 mb/s.
I hope this doesn’t confuse you and don’t think in terms like MPEG video where 3.6 mb/s is too low of quality. That only applies to MPEG and web based video compressions.
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Wayne Carey
Schazam Productions
http://www.schazamproductions.com -
I hope you were joking. I think you were, right?
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[Wayne Carey] ” Therefore a DV25 clip that is 3.6 mb/s will decompress and play bak at 25 mb/s on the fly but your file is still actually at 3.6 mb/s.”
Wayne, I think you’re confusing bits (little ‘b’) & bytes (big ‘B’). DV 25 is 25 mb/sec, or 3.6 mB/sec.
Arnie
https://www.arniepix.com -
You’re right, Arnie… Thanks for pointing that out. I’ve had one of THOSE weeks… I think my brain is about to shutdown or blue screen…. LOL
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Wayne Carey
Schazam Productions
http://www.schazamproductions.com -
What do you mean “blue screen”? 😉
Kevin Monahan
Take My FCP Master’s Workshop!
fcpworld.com
Pres. SF Cutters -
Sorry!
That’s a PC thing… The wonderful Microsoft Windows Blue Screen of Death!
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Wayne Carey
Schazam Productions
http://www.schazamproductions.com
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