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April 17th, 2007, 12:26 AM | #16 |
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So whats up with the audio lag in final cut pro 6 has it been fixed?
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April 17th, 2007, 01:02 AM | #17 | |
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Gary, what audio lag are you speaking of? I've not seen or heard of any audio lag on my fcp system editing HDV from the HD100. |
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April 17th, 2007, 01:52 AM | #18 | |
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1) MPEG-2 IN and uncompressed OUT. 2) At the same time, MPEG-2's 4:2:0 color space is upsampled to either 4:2:2 (uncompressed video that is written to a file) or 4:4:4 immediately used by FCP. 3) If you choose 10-bit uncompressed video written to a file, the 8-bit baseband video is upsampled. Likewise, if you set FCP to 10-bit, 8-bit baseband video is upsampled. If you choose to convert after capturing MPEG-2 you dramatically increase the size of all source material -- yet no quality is gained. Whatever MPEG-2 artifacts you might think are in HDV, will be copied perfectly. Huge cost and no gain. Conversly, if you leave the MPEG-2 in a file -- nothing at all degrades. When FCP needs a video frame, it decodes the frame it needs to 4:4:4 uncompressed at either 8-bits or 10-bits. It makes no difference whether the mpeg-2 frame is an I,B, or P frame. All information needed to get an uncompressed frame is gathered and used. (Likewise, if you convert immediately after capture, each uncompressed frame is totally independent of its I, B, P nature.) So, it makes no difference to FCP whether it reads an uncompressed frame from a file or it reads an mpeg-2 frame from a file and decodes it. The frame fcp uses has exactly the same quality. No more and no less. All FX, CC, and even exports, are done -- as they must be -- on uncompressed 4:4:4 frames. When a frame enters the render/display/export engine, there is no history of what it was in a file. Or, when it was converted. In all cases, each MPEG-2 frame has been decoded exactly ONCE. And, no matter how many layers, when it comes time for export -- no matter if your source files are were uncompressed or MPEG-2, each HDV frame will have been decoded only one time. As the render engine works on images -- no "MPEG-2 errors accumulate" because everything in the render engine is uncompressed. When the final result of each frame is complete -- it is displayed and discarded -- never to be used again. Contrary to what many believe, the result is not re-rencoded to MPEG-2. It's tossed. Even if you force a render -- which with fcp's realtime ability you should not need to do all that often -- the preview files are never used for the final export.
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April 17th, 2007, 02:51 AM | #19 | |
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We're running FCP 5.1.4 with a Kona card now and our (more expensive) Avid gear is up for sale! It's the end of 8 years of pure Avid editing for me. This HDV1 thing is the straw that broke the camel's back here. These last two weeks have been my first time editing seriously on FCP and we're working mostly on HDV1 25fps material with great success. I made a wishlist over those two weeks of what I wished FCP would include to make it put it on a par with the Avid finishing systems I have used for years. I'm pleased to say that nearly everything on that list has been addressed with FCP Studio 6. For PC users the NAB announcement of the new Liquid variant with AJA Xena support is very good news indeed. |
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April 17th, 2007, 04:57 AM | #20 | |
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April 18th, 2007, 05:15 AM | #21 |
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MINI 35 Compact for 1/3" cameras with detachable lens
C like Compact
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April 18th, 2007, 10:32 AM | #22 | |
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All that info is great (I'm the resident compressionist here at work and I understand your lingo) but I don't think it answers the question. Somebody with a mac/intel system that has a firewire port only for digital video capture of HDV to their local sata drive will not be doing anything uncompressed except export processing....correct? (and thats why it takes so long with such low bandwidth) Last edited by Mark Silva; April 18th, 2007 at 05:08 PM. |
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April 18th, 2007, 02:25 PM | #23 | |
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How is the FCP 6 trim mode compared to Avid Xpress? I've tried FCP at the Apple store but don't have much exposure otherwise. I really do like AVid's trim mode but wish they were much more feature rich otherwise. TIA, Andrew |
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April 18th, 2007, 10:33 PM | #24 | |
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April 18th, 2007, 11:07 PM | #25 |
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This is a myth -- the frame is discarded after being converted to RGB for display. It is never used as it has no value.
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April 18th, 2007, 11:59 PM | #26 | |
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Here is a link to the JVC Pro press page for NAB 2007 http://pro.jvc.com/pro/pr/2007/nab/default.htm Regards,
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April 19th, 2007, 12:21 PM | #27 | |
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shame
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April 22nd, 2007, 10:47 AM | #29 |
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Since the Apple stuff has been already listed in detail...
Adobe Creative Suite CS3 , Adobe AfterEffects CS3, Premiere is back to the Mac. DVRack is now "On Location". Adobe is committing to a true multiplatform release of all its tools. It will be interesting to see if On Location and Ultra will be included. AfterEffects CS3 introduces vanishing point 2.0 with exchange of 3D worlds from Photoshop CS3. Many other features, 3D text improvement, puppet pin tool which works equally well with pictures and drawings, native Intel support for Mac means that I can now scrub HD 1080p footage in AfterEffects in my laptop. The new Adobe Media Player allows you to play Flash files from the desktop, introduces the ability to include interactive elements that pause the movie, open subwindow and can connect to online information while the movie plays. Also, movies can cause automatic switching of skins in the player. Very, very nice. Reagarding codecs, this is not something from NAB but you should do yourself a favor and look at SheerVideo by BitJazz (http://www.bitjazz.com) SheerVideo is a lossless compressor that generates files that are less than 1/2 the size of uncompressed and retain all the color informaiton. In fact it's one of the best ways that I found to interchange information between applications while having the absolute guarantee that colors are preserved. Interestingly enough, it runs and plays faster than other uncompressed codecs. BitJazz has a free preview that runs for 20 days and the reader is free as well. At the optical/digital level Tiffen has demonstrated an impressive new software called Dfx. It has the emulation of all Tiffen filters by their "hardware" names, it includes the Rosco light gels again by name and it has listed a massive amount of GAM gobo patterns. You can take a picture via your digital camera and then apply the filters, light gels and patterns and come up with a new picture or use it to define the look of your movie in pre-production. This allows you to see the effects of any given Tiffen filter at home with all kind of pictures that you have. Very, very nice. |
April 22nd, 2007, 11:31 AM | #30 | |
Wrangler
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-gb- |
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