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You are here: MacNN Forums > Our Archives > General Archives > Digital Video & Audio Archives > iMovie>size and quality importing

 
iMovie>size and quality importing
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Mac Elite
Join Date: May 2002
Status: Offline
Aug 3, 2003, 02:25 PM
 
Hi, I just plugged my brother-inlaws camcorder and used iMovie to grab the footage. Easy, went of without a hitch.

However, I notice that playing back the footage at full screen 1024x768 is low quality and when I render to a quicktime file the size is 780x???. is there an option I'm missing? I can only image viewing this on a TV would be even worse.

help?
     
Professional Poster
Join Date: Jan 2000
Location: Near Antietam Creek
Status: Offline
Aug 3, 2003, 03:15 PM
 
DV video is (if I recall correctly) 720x480. When you play it at 1024x768 is will pixelate a bit (like having an 800x600 image as a fullscreen desktop picture on a 1024x768 monitor). This is not a concern when creating a DVD or exporting back to a camcorder since, in America, broadcast resolution (NTSC) is 640x480 (non-HD).
I am stupidest when I try to be funny.
     
Mac Elite
Join Date: May 2002
Status: Offline
Aug 3, 2003, 03:35 PM
 
Ahhh.....interesting. Thanks for the info!
     
Mac Elite
Join Date: May 2002
Status: Offline
Aug 3, 2003, 03:35 PM
 
Oh...by the way, what is PALs image size?
     
Addicted to MacNN
Join Date: Aug 2000
Status: Offline
Aug 3, 2003, 09:22 PM
 
It could also be due to limitations in your machine and/or monitor. Machines with less than a 350mhz processor have an option in iMovie preferences for smooth/blurry playback or jerky/sharp playback. They aren't powerful enough to provide both smooth and sharp playback.

Plus, as scott said, if you blow a DV up to full-screen on a computer monitor it'll look grainier. But if you play it back on a TV it'll look fine.

QuickTime movies are compressed and/or have lower frame rates so the video usually looks even worse than in iMovie.

DV resolution is actually 720x480 NTSC (720x576 for PAL). iMovie and TV screens artificially make it appear at the 4:3 ratio of 640x480. But if you export to a full-size, uncompressed QT movie, it'll be at the actual 720x480 NTSC (720x576 PAL) resolution. That might explain the different resolution numbers you saw in QT.
     
 
   
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