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5517 Views 4 Replies Latest reply: Jul 7, 2008 6:22 AM by Jeff A. Harrell
Currently Being ModeratedJul 2, 2008 3:39 PM (in response to Mike Cole1)The difference is bit rates primarily.
Normal quality is targeted at 145 Mbps, and high quality (HQ) is targeted at 220 MbpsMacPro 2.66Ghz 5 Gbs RAM, Mac OS X (10.5.1), NVIDIA GeForce 7300 GT Video Card 256 MBs RAM
Currently Being ModeratedJul 2, 2008 3:46 PM (in response to Mike Cole1)Mike,
use just ProRes (SD), ProRes HQ suits best high end HD formats.
Remember you can just render your timeline to ProRes:
FCPmain menu>FinalCutPro>User Preferences>Render Control>Codec>Apple ProRes. Then send to Compressor.
G.MBP+MacPro 2x3Ghz Intel Xeon; 4GB RAM; ATI X1900 512MB;FCPstudio2, Mac OS X (10.4.11), dish washer
Currently Being ModeratedJul 7, 2008 5:58 AM (in response to gogiangigo)Do you then export QT movie with current settings (reference file)? If so, how long does it take compressor for you to encode a 2 hour video using Best Quality 120 min DVD encode? My video is acutally 1 hr 47 and is taking 16 hours. This is using my MacBook Pro 2.33 ghz with 2 gig ram. Is this to be expected for this machine? Or is there a better method that would be faster?
ThanksG5 Dual 2, G4 1.25
Currently Being ModeratedJul 7, 2008 6:22 AM (in response to gogiangigo)Just to clarify something, the difference between ProRes 422 and ProRes 422 HQ has nothing to do with SD versus HD.
ProRes 422 is a variable-bit-rate compressor. The regular version of the compressor will produce Quicktimes with a maximum data rate of 145 Mbps at 1920x1080x60i. The HQ version has more headroom, giving you up to 220 Mbps at 1920x1080x60i.
If you use a smaller raster (like 1440x1080, or even 720x480) you'll get smaller data rates. If you use a lower frame rate (like 23.976) you'll get smaller data rates. In both varieties, ProRes is a use-what-you-need compressor. A typical clip of very high complexity (a 3D scene with lots of particles and digital grain) on my system tops out at 160 Mbps, because it's 1440x1080x23.976.Mac Pro, 8x2.8 GHz, 8 GB, Mac OS X (10.5.2)