Allan Tépper
Allan Tépper has been working with professional video since the early eighties, since he first learned to edit video using the open-reel 1/2” EIAJ-1 format with a Sony VO-3650 editing deck in his high school in Connecticut. Since 1994, Tépper has been consulting both end-users and manufacturers via his Florida company. Via TecnoTur, Tépper has been giving video technology seminars in several South Florida’s universities and training centers, and in a half dozen Latin American countries, in their native language. Tépper has been a frequent radio/TV guest on several South Florida Latino stations, and on a couple of Venezuelan stations too. As a certified ATA (American Translators Association) translator, Tépper has also translated and localized dozens of advertisements, catalogs, software, and technical manuals for the Spanish and Latin American markets. Tépper’s most recent translation was the user interface for a Hong Kong company which makes a calling card application (BerryDialer) for Blackberry users.
Over the past 17 years, Tépper’s articles have been published in more than a dozen magazines, newspapers, and electronic media in Latin America, mainly in Producción & Distribución and TTV. In 1998 Tépper founded SOPRÉPROC, the Sociedad para la preservación y progreso del castellano or Society for the Preservation and Evolution of the Castilian language (the world’s most widely used Spanish language). From 2000-2002, Tépper was also the editor of TTV, of the Izarra Group. From the end of 2006 until September 2007, Tépper was the co-director of the South Florida Final Cut Pro User Group. Currently, Tépper is writing for ProVideo Coalition and editing more episodes of his TecnoTur audio podcast, which includes international telephone interviews of industry professionals in Spain and Latin America. Subscribe free to TecnoTur in iTunes or at TecnoTur.us
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Sunday, January 04, 2009
Visual frame accuracy, picture quality, and recapturability are only some of the many advantages of HDMI capture.
For many reasons explained in my recent article, it makes a lot of sense to capture your HDV footage directly to an editing i-frame códec like ProRes422. One of the best way to do that nowadays from HDV is via HDMI. Editing directly from ProRes422 files (as opposed to hybrid editing or native editing, as explained in the prior article,) offers you visually frame-accurate editing, which is critical whenever your project includes:
- Critical multilayer editing
- Independently recorded 48 KHz audio which needs to be lip-synced
If you try to do either of those two things from your raw long-GOP HDV footage directly, you’ll find that what you see is rarely what you eventually get. This has nothing to do with choosing to shoot in HDV or not; but it has everything to do with how to post-produce your HDV footage, especially when your production will include either of those two demanding facets mentioned above. (If your production includes neither of those facets, and you are very short on space, then hybrid editing or native editing would work, but you would miss out on some of the other advantages you’re about to discover.)
Advantages of capturing via HDMI directly (or via HD-SDI) as opposed to other methods include:
- Avoiding unnecessary D>A (digital>analog) and A>D (analog>digital) conversions by keeping your HD signal as digital (as opposed to capturing via component analog). Click here to see a breathtaking comparison video, courtesy of Convergent Design and JVC Italy. The same HDV 720p25 footage was captured from the same HDV tape both via component analog HD and via HDMI>HD-SDI, and compared. This video is in 1280x720 in WMV. If you are on a Mac and have not done so yet, please download Flip4Mac’s free WMV component for QuickTime here, which will allow you to see WMV in your QuickTime Player.
- Taking advantage of the HDV deck’s correction circuit (which is unfortunately bypassed via IEEE-1394).
- You can get a more universal HDV player (see details later in the next article, Universal HDV deck, coming January 8th).
- You can save time and space (as opposed to capturing via 1394 and converting later)
- You retain Log & Capture, deck control, original timecode, and (as a result) recapture capability (as opposed to using FCP’s HDV-ProRes422 capture preset via 1394, where you sadly lose all of these four features)
more »
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