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Old May 3rd, 2011, 11:13 PM   #1
Tourist
 
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720p/60 footage stutters in Premiere Pro Cs5

Hello: I have recently purchased a NX5U and Adobe Premiere Pro CS5. Prem Pro plays and edits raw 1080p/24 footage very well. However, when playing/editing 720p/60 recordings, it jumps/stutters about every 2 seconds. In comparison, I played/edited the same recording in Final Cut Express. FCE played the clips just fine (of course after waiting for log/transfer of raw file). If anyone has any wisdom to share, please guide me. Thank you.
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Old May 4th, 2011, 06:46 AM   #2
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Re: 720p/60 footage stutters in Premiere Pro Cs5

The processor isn't powerful enough to decode and play the 720P60 AVCHD file smoothly. You will need a more powerful machine to play all the AVCHD files native.

Ron Evans
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Old May 4th, 2011, 08:49 PM   #3
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Re: 720p/60 footage stutters in Premiere Pro Cs5

I did not know that AVCHD 720p/60 was more intensive on the processor than 1080p/24. Now I'll be saving for a better computer.
Thank you Ron for the help.
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Old May 5th, 2011, 08:08 AM   #4
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Re: 720p/60 footage stutters in Premiere Pro Cs5

It is not a lot more data crunching but is likely enough to make a difference. For 720P60 the computer has to decode 60 frames a second but for 24P only 24 frames a second. Although the total number of pixels decoded is only a little more for 720P60 it has to be in at 60 frames a second. There is only 1/60 sec for the computer to decode. For 24p there is more than twice as long for the computer to decode each frame.

Ron Evans
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