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	<title>High Definition for PC &#187; AVCHD</title>
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	<description>Evolving Media Post Production Workflows in Light of Advancing Computer Technology</description>
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		<title>Premiere Pro CS5 with NVidia CUDA</title>
		<link>http://www.hd4pc.com/techblog/2010/06/03/cs5-with-cuda/</link>
		<comments>http://www.hd4pc.com/techblog/2010/06/03/cs5-with-cuda/#comments</comments>
		<pubDate>Fri, 04 Jun 2010 04:44:13 +0000</pubDate>
		<dc:creator>McCarthyTech</dc:creator>
				<category><![CDATA[Product Reviews]]></category>
		<category><![CDATA[Software News]]></category>
		<category><![CDATA[Adobe]]></category>
		<category><![CDATA[AVCHD]]></category>
		<category><![CDATA[Canon]]></category>
		<category><![CDATA[Compression]]></category>
		<category><![CDATA[DSLR]]></category>
		<category><![CDATA[Nvidia]]></category>
		<category><![CDATA[Windows]]></category>

		<guid isPermaLink="false">http://www.hd4pc.com/techblog/?p=90</guid>
		<description><![CDATA[While all of the Adobe applications have been updated in CS5, clearly Premiere Pro is the centerpiece of this release.  Adobe has been touting the Mercury Playback Engine for months, with new 64bit code, and additional GPU acceleration through NVidia&#8217;s CUDA technology.  This acceleration allows highly compressed formats like AVCHD and H.264 to be played [...]]]></description>
			<content:encoded><![CDATA[<p style="text-align: left;">While all of the <a href="http://www.adobe.com/products/creativesuite/compare/" target="_blank">Adobe applications</a> have been updated in <a href="http://www.adobe.com/products/creativesuite/?promoid=GWYLN" target="_blank">CS5</a>, clearly <a href="http://www.adobe.com/products/premiere/whatsnew/?promoid=FDTFD" target="_blank">Premiere Pro </a>is the centerpiece of this release.  Adobe has been touting the <a href="http://www.adobe.com/products/premiere/performance/" target="_blank">Mercury Playback Engine </a>for months, with new 64bit code, and additional <a href="http://www.nvidia.com/object/adobe_PremiereproCS5.html" target="_blank">GPU acceleration </a>through <a href="http://www.nvidia.com/page/home.html" target="_blank">NVidia&#8217;s</a> <a href="http://en.wikipedia.org/wiki/CUDA" target="_blank">CUDA</a> technology.  This acceleration allows highly compressed formats like <a href="http://en.wikipedia.org/wiki/AVCHD" target="_blank">AVCHD</a> and <a href="http://en.wikipedia.org/wiki/H264" target="_blank">H.264 </a>to be played back seamlessly in the timeline, and intercut with other formats without transcoding intermediate files or rendering previews.  <a href="http://www.tkqlhce.com/click-4107801-10674112?url=http%3A%2F%2Fstore.digitalriver.com%2Fstore%3FAction%3DDisplayProductDetailsPage%26Locale%3Den_US%26SiteID%3Dadbevlus%26productID%3D182915000&amp;cjsku=Premiere+Pro+CS5+-+License" target="_blank">Premiere Pro</a> now supports native editing of a stunning number of acquisition formats, including <a href="http://en.wikipedia.org/wiki/HDV" target="_blank">HDV</a>, AVCHD, <a href="http://en.wikipedia.org/wiki/XDCAM" target="_blank">XDCam-HD and XDCam-EX</a>, DVCProHD and AVC-Intra files from <a href="http://en.wikipedia.org/wiki/P2_(storage_media)" target="_blank">P2 Cards</a>, <a href="http://labs.adobe.com/downloads/red3importer.html" target="_blank">Red R3D </a>files, and my favorite: Canon H.264 <a href="http://en.wikipedia.org/wiki/Digital_single-lens_reflex_camera#High_Definition_DSLRs_.28HDSLRs.29" target="_blank">DSLR</a> footage.  It can also edit DNxHD and ProRes footage, for greater compatibility with <a href="http://www.bhphotovideo.com/c/product/706140-REG/Avid_7500_30124_01_Media_Composer_5_Production.html/BI/6727/KBID/7302" target="_blank">Avid</a> and <a href="http://www.bhphotovideo.com/c/product/639275-REG/Apple_MB642Z_A.html/BI/6727/KBID/7302" target="_blank">Final Cut Pro</a>.  DPX sequences are another significant addition to the formats natively supported, for both import and export.  This greatly enhances Premiere Pro&#8217;s usefulness as a DI conform tool, especially when combined with native support for so many other source formats.<br />
<span id="more-90"></span><br />
The greater memory footprint made available by 64bit coding allows larger projects to be loaded without having to swap data into virtual memory, which causes a major performance hit.  This allows longer complex sequences, and more importantly: greater numbers of source clips to be imported without any noticeable decrease in system performance.  The one point where large projects still incur a penalty is during load time, since regardless of how much RAM you have, more data has to be loaded into memory.  Even my projects with over 500 clips usually load within a minute, which is a vast improvement over previous versions.  Loading media in the background once the UI is available to the user is a feature that has been available in <a href="http://en.wikipedia.org/wiki/Premiere_Pro" target="_blank">Premiere</a> ever since the 4.2 update.  While it is nice to see your sequence on screen during that time, I wouldn&#8217;t recommend trying to do any real work until all of the media is loaded, because you will usually see a significant decrease in both performance and stability while the system is busy linking to all of your media files.  Certain files load faster than others during this process, so load times may vary depending on the format of your source footage, regardless of your project&#8217;s complexity.  Specifically I have noticed that DSLR MOV files take longer to load when opening a project.</p>
<p>Speaking of DSLR files, Adobe has totally reinvented the way they are handled in CS5.  Most applications, including the CS3 and CS4 versions of both Premiere and After Effects, use <a href="http://en.wikipedia.org/wiki/Quicktime" target="_blank">QuickTime</a> importers to access the content of <a href="http://www.bhphotovideo.com/c/search?ci=6222&amp;Ns=p_PRICE_2%7C1&amp;N=4288586280+4291570227+4291070769&amp;BI=6727&amp;KBID=7302" target="_blank">Canon DSLR </a>files.  This makes sense, since they are stored in an MOV wrapper, but leads to two issues.  One is that is specific to Adobe is that on a PC, QuickTime files go through a few extra steps before they are accessed by the application, so there is a performance hit, and with lots of files accessed at once, there are usually stability issues as well.  The other issue effects all applications that use QuickTime to access DSLR files, and that is that ever since <a href="http://prolost.com/blog/?currentPage=17" target="_blank">QuickTime 7.6.2</a> was released, Canon DSLR files have been decoded in a much more flat and washed out color space than they were designed to be viewed in.  Prior to version 7.6.2, they were decoded in a way that <a href="http://cineform.blogspot.com/2009/01/full-dynamic-range-video-from-canon-5d.html" target="_blank">clipped</a> the highlights and shadows, which was even worse.  In CS5, Adobe worked with <a href="http://www.mainconcept.com/" target="_blank">Mainconcept</a> to create an importer that reads the DSLR source files without involving QuickTime at all.  This alleviates both the performance hit on PC systems, and the color space issues of QuickTime&#8217;s default decoding.  A lot of work was put into getting the decode matrix and color space exactly correct based on the processing that Canon&#8217;s hardware does to the file in the camera.  This should allow CS5 to decode the files more correctly than any other application that I am aware of, and give more options for color processing at later stages in the workflow pipeline, since more of the original color data is preserved.</p>
<p>The Mercury playback engine has a significant impact on the user experience, with most frequently used tools being available in real time.  Supposedly most of the decode and playback improvements are based on the new code written for native <a href="http://en.wikipedia.org/wiki/64-bit" target="_blank">64bit</a> execution, with the <a href="http://en.wikipedia.org/wiki/GPU#GPU_accelerated_video_decoding" target="_blank">GPU offload </a>limited to effects processing.  While many editors don&#8217;t use very many discrete effects in their work, there are some intrinsic playback functions like scaling frame sizes and adapting frame rates that are considered effects and offloaded to the GPU.  This allows content of different frame rates and resolutions to be intercut seamlessly on the timeline, and it is truly seamless.</p>
<p>I have occasionally found myself editing in the wrong sequence frame rate without even noticing it, since the software makes the conversion on the fly.  Even more frequently I have found a clip shot in the wrong frame rate on a tapeless camera almost escaping detection because gone are the red render bars and playback glitches that used to stand out.  This allows editors to import media from many different sources without prerendering everything to a normalized format.  I used to spend about a quarter of my time at work converting strange source footage into 1080p24 intermediate files, because any footage not matching the timeline format would cause previous versions of Premiere to glitch during playback and occasionally crash.  Now I would recommend carefully converting any footage used in a final piece to the correct format for maximum control, but this step can now be put off until the online stage, since it is no longer required for playback and stability.  Since 90% of footage usually ends up on the cutting room floor, putting off these time consuming conversions until after the creative edit is finished, will drastically reduce the amount of footage you end up needing to process.</p>
<p>So this clear increase in performance leads to the question of: how far can you push it?  A few months back I processed an <a href="http://en.wikipedia.org/wiki/Image_noise" target="_blank">ISO noise </a>test in <a href="http://en.wikipedia.org/wiki/Adobe_After_Effects" target="_blank">After Effects CS4</a> for <a href="http://www.hurlbutvisuals.com/blog" target="_blank">Shane Hurlbut</a>.  We were comparing the image noise produced at twelve different ISO levels on the Canon 5D, and the project involved twelve streams of video with masks, levels, and position adjustments for a tiled view.  I was getting about two frames per second when rendering previews, which seemed reasonable considering the amount of processing involved.  When I saw the list of GPU accelerated effects in Premiere Pro CS5, and was asked to create torture test for Adobe to show off at <a href="http://www.nabshow.com/2010/index.asp" target="_blank">NAB</a>, this jumped to mind.  I recreated the entire project, using twelve layers of native DSLR footage, each layer having a motion effect and a 4-point garbage matte to create the tiling, and a color correction applied to exaggerate the noise to a clearly viewable level.  The same basic setup that was getting 2fps in AE CS4 played back in real-time in Premiere Pro CS5.  (Dual <a href="http://processorfinder.intel.com/details.aspx?sSpec=SLAED" target="_blank">Xeon X5365</a> CPUs and 16GB RAM with a <a href="http://www.nvidia.com/object/product_quadro_fx_4800_us.html" target="_blank">QuadroFX 4800</a>) Needless to say I was quite impressed with the outcome, since it was deliberately beyond Adobe&#8217;s ten-layer playback claim, and using a complex format to decode and playback.  Clearly GPU acceleration can have a dramatic impact on application performance.</p>
<p>There has been much discussion and debate on tech forums and blogs about the specifics of Premiere Pro&#8217;s hardware support for CUDA acceleration.  Adobe has severely restricted the number of cards for which they officially support CUDA based GPU acceleration, to maintain control over the hardware environments upon which their accelerated code is tested, supposedly for stability reasons.  The official list is limited to <a href="http://www.nvidia.com/page/qfx_uhe.html" target="_blank">QuadroFX</a> 3800, 4800, and 5800, as well of the discontinued <a href="http://www.nvidia.com/object/product_geforce_gtx_285_us.html" target="_blank">GeForce 285 GTX</a>, with certain limitations, for those on a lower budget.  There are currently no officially supported mobile GPUs, even though notebook CPUs are usually more in need of a performance boost than desktop chips.  This may be due to the fact that even the newest mobile <a href="http://www.nvidia.com/object/product_quadro_fx_3800_m_us.html" target="_blank">QuadroFX 3800M </a>is still based on the <a href="http://en.wikipedia.org/wiki/Nvidia_Quadro#Mobile_applications" target="_blank">G92</a> core from the GeForce 8000 series, but I don&#8217;t like seeing software artificially limited in regards to performance or hardware support, and this is an example of both.  Don&#8217;t confuse legitimate limitations and artificial limitations, since clearly a powerful GPU is necessary for optimal performance in CS5, but there are cards of equal capability that are specifically excluded from the list, supposedly for stability reasons.  Luckily Adobe has left an option for knowledgeable users to override some of those artificial limitations, and I anticipate seeing them being dropped completely in a future update.  I anticipate a more reasonable requirement of any NVidia card supporting <a href="http://en.wikipedia.org/wiki/Comparison_of_Nvidia_graphics_processing_units#Compute_capability_table" target="_blank">CUDA 1.1 or 1.3</a>, with at least 785MB of video memory, at some point in the future.</p>
<p>While Premiere Pro CS5 is not perfect, it is a complete reversal from the previous fiasco that was CS4.  It clearly demonstrates the possibilities provided by GPU acceleration, resting solidly on 64bit code with proper multithreaded programming, it scales to take advantage of whatever hardware is made available for it.  Since Adobe has made a practice of introducing significant improvements in incremental dot releases, I am looking forward to seeing how else they refine it in the coming months.</p>
<p>FTC Disclosure: I have been on Adobe&#8217;s beta team for many years, and Adobe has provided me a copy of CS5 for this review.  NVidia has provided me with graphics hardware in the past, which I utilized in this review.  My only admitted personal bias is my preference of Windows over OSX, because I like full control over every aspect of my computing experience.  If for some reason that bothers anyone, there are plenty of other sources of information on the internet, but I try to provide unique insight on how each of these tools fits into the larger post-production picture.  Any relevant critique or response is welcomed.</p>
]]></content:encoded>
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		<title>Adobe Creative Suite 5 Video Apps</title>
		<link>http://www.hd4pc.com/techblog/2010/06/02/adobe-cs5-video-apps/</link>
		<comments>http://www.hd4pc.com/techblog/2010/06/02/adobe-cs5-video-apps/#comments</comments>
		<pubDate>Thu, 03 Jun 2010 04:55:10 +0000</pubDate>
		<dc:creator>McCarthyTech</dc:creator>
				<category><![CDATA[Product Reviews]]></category>
		<category><![CDATA[Software News]]></category>
		<category><![CDATA[Adobe]]></category>
		<category><![CDATA[AVCHD]]></category>
		<category><![CDATA[Avid]]></category>
		<category><![CDATA[Canon]]></category>
		<category><![CDATA[Compression]]></category>
		<category><![CDATA[DSLR]]></category>
		<category><![CDATA[HDV]]></category>
		<category><![CDATA[Red One]]></category>
		<category><![CDATA[Windows]]></category>
		<category><![CDATA[XDCam]]></category>

		<guid isPermaLink="false">http://www.hd4pc.com/techblog/?p=96</guid>
		<description><![CDATA[Adobe announced CS5 at NAB 2010 and has recently begun shipping the retail version.  Now in its fifth iteration, Creative Suite has grown from a compilation of four stand alone applications into a fully integrated product line with extensive content creation functionality.  It is hard to count the number of individual applications that make up the [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.adobe.com" target="_blank">Adobe</a> announced <a href="http://www.adobe.com/products/creativesuite/?promoid=GWYLN" target="_blank">CS5</a> at <a href="http://www.nabshow.com/2010/index.asp" target="_blank">NAB 2010 </a>and has recently begun shipping the <a href="http://www.tkqlhce.com/click-4107801-10674112?url=http%3A%2F%2Fstore.digitalriver.com%2Fstore%3FAction%3DDisplayProductDetailsPage%26Locale%3Den_US%26SiteID%3Dadbevlus%26productID%3D182915500&amp;cjsku=CS5+Production+Premium+-+License" target="_blank">retail version</a>.  Now in its fifth iteration, Creative Suite has grown from a <a href="http://en.wikipedia.org/wiki/Creative_suite#History" target="_blank">compilation</a> of four stand alone applications into a fully integrated product line with extensive content creation functionality.  It is hard to count the number of individual <a href="http://www.adobe.com/products/creativesuite/compare/" target="_blank">applications</a> that make up the suite, since sub programs have been folded into other applications, and <a href="http://www.adobe.com/flashplatform/" target="_blank">Flash</a> now has multiple variations, with Builder, Catalyst, and Pro.  From a digital post production perspective, the primary applications of concern are clearly <a href="http://www.adobe.com/products/premiere/whatsnew/?promoid=FDTFD" target="_blank">Premiere Pro</a> and <a href="http://www.adobe.com/products/aftereffects/whatsnew/?promoid=FDTDW" target="_blank">After Effects</a>, with their subsidiary apps: <a href="http://www.adobe.com/products/premiere/onlocation/" target="_blank">OnLocation</a>, Media Encoder, and <a href="http://www.adobe.com/products/premiere/encore/" target="_blank">Encore</a>.  Premiere Pro CS5 is clearly the centerpiece of this release, with its new <a href="http://www.adobe.com/products/dreamweaver/web/" target="_blank">Mercury Playback Engine </a>and optional <a href="http://www.nvidia.com/object/adobe_PremiereproCS5.html" target="_blank">CUDA based GPU </a>acceleration, but non-video applications like <a href="http://www.adobe.com/products/photoshop/photoshopextended/whatsnew/" target="_blank">Photoshop</a>, <a href="http://www.adobe.com/products/dreamweaver/web/" target="_blank">Dreamweaver</a>, and <a href="http://www.adobe.com/products/flash/whatsnew/" target="_blank">Flash</a> still play an important role in many large scale post production workflows, because they are useful in creating supporting artwork and other imagery, and for interfacing your project with the internet in a variety of ways.<br />
<span id="more-96"></span><br />
There are a lot of new features to talk about, so I will limit this article to the applications directly used in post-production workflows, with separate posts coming soon to cover the new Mercury Playback Engine in Premiere Pro, and the rest of the less video oriented updates in CS5.  The first improvement worth noting in this release, is that all of the main video applications have been rewritten with native <a href="http://www.adobe.com/products/plugins/aftereffects/" target="_blank">64bit</a> code.  This allows each application to address more than 4GB of memory, which has a number of advantages.  In Premiere Pro, this is helpful for playback of sequences with larger frame sizes like <a href="http://www.adobe.com/products/premiere/redsupport/" target="_blank">Red 4k </a>material, but more importantly, the added space allows for larger projects with more source clips and media, without a drop in performance.  In After Effects the direct result of <a href="http://help.adobe.com/en_US/aftereffects/cs/using/WS9F936D13-E76A-41e4-BF8F-577132AB4723a.html" target="_blank">64bit memory addressing </a>is that preview renders can be much longer, especially with larger frame sizes and higher bit depths becoming more standard.  The increase that this gives to your render cache can be quite significant.  With six channels of RAM in the highest end CPUs of Intel&#8217;s current generation or products, 24GB is the optimum amount for most professional workstations, although I know Adobe has tested configurations as high as 96GB.  With 24GB of memory, AE CS5 will offer 6 times the amount of preview caching as CS4, which means that not only are your individual previews longer, but when moving between different comps and even undoing changes, you will frequently find that your previous rendered frames are still available.  Maybe its just me, but disk caching seems to work much better as well.</p>
<p>The other major new feature for this release of After Effects is the <a href="http://help.adobe.com/en_US/aftereffects/cs/using/WS3bf812c123007fb8513559df126b537c840-8000.html" target="_blank">Rotobrush</a>.  Based on Photoshop image processing functionality, extended to account for the information made available from multiple frames, this is the closest thing you are going to find to magic in a current generation compositing application.  It allows you to automatically separate foreground and background objects in a video image, otherwise known as rotoscoping.  Of course it is not perfect, but it is a huge advance, compared to previous tools.  Automated tools like this are usually much more impressive if you aren&#8217;t expecting a miracle going into the process, but as long as you have reasonable expectations, Rotobrush can give you usable results in a rush, or a good starting point when more precise work is required.  Much of the &#8220;magic&#8221; of the new tool is in the processing of the automatically defined edges, and this capability is available without using the Rotobrush, in the form of the &#8220;Refine Matte&#8221; effect.  This effect can be used to polish the edges of standard keys, or manually rotoscoped footage.  Most of the other major feature enhancements for this release come in the form of integrated third party plug-ins, including Color Finesse for grading, Mocha for tracking, and DigiEffects Freeform for 3D simulation.  Each of these are feature rich plug-ins that include functionality that is beyond the scope of this overview, but are well worth experimenting with if you spend a lot of time working in After Effects.</p>
<p>There are quite a few new features in Premiere Pro CS5 that don&#8217;t hinge on the new Mercury Playback Engine.  These relate primarily to metadata and content organization, as opposed to the media itself.  Speech detection tools were introduced in CS4, and now those can be used in conjunction with the features of <a href="http://www.adobe.com/products/creativesuite/cslive/story/features/?promoid=GWEMO" target="_blank">Adobe Story</a>, to link your actual footage to your original plans, including scripts, storyboards, and shot lists.  Much of this footage processing links to OnLocation CS5&#8242;s features, which besides monitoring the technical details of a captured media signal, allow ingest of metadata during the acquisition process.  Building up as much information as possible during production, on a per-shot and per-take basis, will further streamline the organization process during editorial.  All of this information is searchable, with the intent being that an editor will have a much easier time finding what they are looking for, as this metadata is passed down throughout the post production workflow, based on source timecode.  This content logging metadata is not the only way that CS5&#8242;s handling of non-media information has improved.</p>
<p>Adobe has also been working hard to streamline the process of exchanging existing projects with Premiere from <a href="http://en.wikipedia.org/wiki/Final_Cut_Pro" target="_blank">Final Cut Pro</a> and <a href="http://en.wikipedia.org/wiki/Media_Composer" target="_blank">Avid Media Composer</a>.  They have further refined the <a href="http://help.adobe.com/en_US/PremierePro/4.0/WSb4dbfa10359e7d701172e0811d0d1b59f7-8000.html" target="_blank">FCP XML</a> import and export functionality that was first introduced in version 4.0.1, which offers some interesting options for Mac based workflows.  Working at a PC based facility, I have had more opportunity to take advantage of Premiere&#8217;s support for exchanging timelines with <a href="http://www.bhphotovideo.com/c/product/706140-REG/Avid_7500_30124_01_Media_Composer_5_Production.html/BI/6727/KBID/7302" target="_blank">Avid</a>.  My current workflow is to use EDLs to move my sequences from Avid to Premiere, but with CS5&#8242;s improved support for <a href="http://help.adobe.com/en_US/premierepro/cs/using/WS37420b7f754071591172e0811d303d48ed-8000.html" target="_blank">AAF</a> import and export, hopefully I will soon be able to leverage the additional functionality offered by AAF exchange.  (One caveat with using EDLs to move sequences, is that occasionally Avid adds spaces to the end of every line, and CS5 will not relink to the source footage automatically, unless you manually remove those spaces)  I have yet to find the optimal settings to switch to AAF files, but I have talked with people who have it up and running.  Combining this sequences exchanging feature with CS5&#8242;s support for <a href="http://en.wikipedia.org/wiki/DNxHD" target="_blank">DNxHD</a> in both MXF and <a href="http://avid.custkb.com/avid/app/selfservice/search.jsp?DocId=290385&amp;Hilite=" target="_blank">MOV wrappers</a>, offers some interesting possibilities, but the truly revolutionary workflow will finally arrive when Media Composer 5 is released next month, allowing Avid to link to external <a href="http://www.avid.com/us/solutions/workflow/Avid-Media-Access" target="_blank">QuickTime files thru AMA</a>.  Hopefully this will allow Premiere Pro CS5 and Media Composer 5 to exchange sequences that all reference the same source files, without any conversions or transcoding.  Since <a href="http://www.bhphotovideo.com/c/search?ci=6222&amp;Ns=p_PRICE_2%7C1&amp;N=4288586280+4291570227+4291070769&amp;BI=6727&amp;KBID=7302" target="_blank">Canon DSLR</a> files will be supported natively both applications, this should totally streamline my current workflow.</p>
<p>Now why would someone want to move their project between different NLE applications?  An editor&#8217;s familiarity with a specific toolset is usually important to them, so certain offline creative editors are not going to switch their primary editorial app no matter what.  To its credit, Avid has a solid reputation for handling extremely large projects with no decrease in performance.  While Premiere Pro has taken a huge step forward in that regard, it is going to take a long time for it to build a stable reputation, since trust usually develops very slowly.  On the other hand, Premiere makes a perfect interactive online conform tool, especially compared to Avid.  It can ingest most digital formats in their native form, supports SDI capture and playback over a number of different hardware solutions, and scales to 2K and 4K resolutions, in <a href="http://en.wikipedia.org/wiki/RGB_color_space" target="_blank">RGB</a> <a href="http://en.wikipedia.org/wiki/Color_space" target="_blank">color space</a> if desired.  It is compatible with DPXs for color grading, and can playback surround sound for reviewing final mixes.  The fact that Premiere can use <a href="http://help.adobe.com/en_US/premierepro/cs/using/WSbaf9cd7d26a2eabf53ab041041081290f-7fe8.html" target="_blank">Dynamic Link </a>to ingest your visual effects changes from After Effects, and to output to Encore for adding interaction becomes an added bonus for this conform solution.</p>
<p><a href="http://www.adobe.com/products/creativesuite/dynamiclink/?promoid=FEDAD" target="_blank">Dynamic Link </a>is now on its fourth iteration, and has matured into a functional tool, even at HD resolutions.  It is designed exchange media between apps, without having to waste time or disk space by rendering.  While it started as a method for importing AE comps into PPro, it became the backbone of PPro&#8217;s export capabilities thru Adobe Media Encoder as well.  While <a href="http://help.adobe.com/en_US/mediaencoder/cs/using/index.html" target="_blank">Media Encoder CS5 </a>is a dramatic improvement from the previous version, Adobe also added back in the option to export files directly from within Premiere.  This is much quicker for rendering out small parts of large projects, avoiding the overhead of syncing the entire project with Media Encoder before rendering a couple of frames.  They also brought back the ability to easily export single frames from the timeline, a function that had been removed in CS4, an inexcusable oversight that has now been rectified.  Exporting a Premiere Pro sequence thru Media Encoder, while not transparent, is now a much faster and more stabile process than it was in CS4.  Media Encoder also now supports DPX sequences and AVC-Intra MXF files, for both input and output.  Still sequence support in both Premiere Pro and Media Encoder is still missing crucial options, for relinking footage in PPro and manually overriding the frame rate in AME.  Hopefully we will have more user control of these settings in future versions.</p>
<p>One thing that I would like to see handled differently in Media Encoder, as well as the Premiere exporter, is the default settings for each export plug-in.  Adobe is never going to be able to predict what settings every user is going to want, but it would be nice if it defaulted to whatever I selected last time I used that particular output option.  As it stands, Media Encoder defaults to the same output as the last file queued, but if I choose any other output (AVI, MOV, DPX) it returns all of the individual settings to the original default, which is usually DV based.  Now it is possible to save presets, but I hesitate to do so unless I anticipate using that exact configuration frequently, because sorting through too many presets can become harder than manually defining the individual settings.  On a relate note, be careful where you save your .prproj files, since selecting &#8220;Save As&#8221; does not default to the current project location as it should.  Instead it defaults to the folder containing the last piece of media that you imported.  I usually follow a strict project organizational pattern, but I have saved projects in the wrong folders daily since switching to CS5 thanks to this &#8220;feature.&#8221;  Hopefully this can be fixed in a minor update.</p>
<p>Now a subsidiary application to Premiere Pro, <a href="http://en.wikipedia.org/wiki/Adobe_Encore_DVD" target="_blank">Encore CS5 </a>is the next logical step in that application&#8217;s evolution as an interactive authoring tool.  The most significant new feature for larger productions would have to be support for DDP output, so that your Encore projects can now be replicated at a professional facility without any special hardware required on the authoring side.  Adobe has also continued to develop the Flash export options, allowing Encore users to output their interactive experiences directly to the web, now with most of the <a href="http://en.wikipedia.org/wiki/Bluray" target="_blank">BluRay</a> interactivity features, including the new multipage menus, supported as well.  Encore projects are now completely cross platform compatible, between the Mac and PC versions.  There is also better support for 23.976p and 24p source files, and an easier subtitling process.  AVCHD files can now be authored directly to BluRay discs without any transcoding, decreasing processing time, and increasing output quality.</p>
<p>Previous versions of Encore have used Dynamic Link to import Premiere Pro sequences as source clips, and more significantly in my opinion, to import After Effects compositions as motion menu backgrounds.  I was never really that impressed by Dynamic Link for Encore source clips, because your Premiere Pro sequence is usually finished by the time you make a <a href="http://en.wikipedia.org/wiki/DVD" target="_blank">DVD</a>, and since you are going to have to transcode to <a href="http://en.wikipedia.org/wiki/MPEG2" target="_blank">MPEG2</a> at some point anyway, little time is saved.  <a href="http://help.adobe.com/en_US/encore/cs/using/WSA5513911-0AD1-440c-BDAD-2E0E806B425E.html" target="_blank">Motion menu design </a>on the other hand seems like a much better fit for the workflow benefits offered by Dynamic Link, since the menu needs to be edited in both Encore and AE during the authoring process.  Encore now also uses Dynamic Link to offload transcoding of those sequences, or any other incompatible source footage, to Adobe Media Encoder.  This will free up Encore to continue interactive authoring work, while asset transcoding proceeds in the background, and also allows third party accelerated encoding plug-ins that are compatible with Adobe Media Encoder, to be utilized for these internal transcodes.  While I am unaware of any CS5 compatible encoders, this was an issue with the <a href="http://www.elementaltechnologies.com/products/accelerator/specs" target="_blank">Elemental Accelerator </a>in CS4.  The files it generated at 24p were re-transcoded in Encore anyway, and Encore couldn&#8217;t utilize the accelerated plug-in directly.  Anyhow, while no CS5 version of Elemental Accelerator has been announced, Matrox&#8217;s <a href="http://www.matrox.com/video/en/products/pc/compresshd/" target="_blank">CompressHD</a> should be able to accelerate Encore&#8217;s BluRay H.264 encodes, once Matrox releases CS5 compatible drivers.</p>
<p>The one thing still missing from the Adobe package is a good intermediate format for exchanging files between other applications, systems, or facilities.  This capability is available from 3rd parties like Cineform or Matrox, but until Adobe integrates support for one directly into the suite, there will not be a single universal standard format, that can be counted on to be compatible everywhere.  It needs to be compatible with both Mac and PC, and store at least 10 bit HD footage with sufficient compression to playback smoothly on a laptop.  Apple and Avid have both recognized this need, and developed ProRes and DNxHD respectively.  AVC-Intra is Adobe&#8217;s current recommendation to meet those workflow needs, but that format has a complicated file structure, and is not a codec optimized for smooth playback.  This universal format would tie in well with OnLocation, if Adobe ever added support for HD-SDI capture capabilities.  That would allow ingest, either live or from tape playback, into a compressed format for editorial, with log notes entered in real-time similar to their current tapeless solution options.  And if a professional selection of scopes could be viewed of the SDI input signal, you would have an all-in-one onset workstation solution.  OnLocation CS5 currently offers most of these capabilities, but is limited to HDV, XDCam, and P2 acquisition for most of its features.  Oh, and if it supported my Canon DSLR, that would be pretty cool too; maybe next time.</p>
<p>As a whole the CS5 release is a major turning point for Adobe, especially with the problems their users experienced with CS4.  While I don&#8217;t yet fully utilize many of the new features, CS5 has already revolutionized the way I work.  Premiere Pro CS5 has replaced After Effects CS4 as central application from which I manage my projects.  I was lucky enough to be on the beta team, so most of the major issues I encountered with the software in my specific workflow, have already been resolved during the development process.  While CS5 is by no means perfect, it is a huge step forward that will begin to rebuild user confidence in Adobe products.  Once third party hardware and plug-ins have had time to be updated to be compatible with the new 64bit native applications, I see no other disadvantages or caveats to upgrading to CS5, which I highly recommend.</p>
<p>FTC Disclosure: I have been on Adobe&#8217;s beta team for many years, and Adobe has provided me a copy of CS5 for this review.  My only admitted personal bias is my preference of Windows over OSX, because I like full control over every aspect of my computing experience.  If for some reason that bothers anyone, there are plenty of other sources of information on the internet, but I try to provide unique insight on how each of these tools fits into the larger post-production picture.  Any relevant critique or response is welcomed.</p>
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		<title>Shooting a Feature Film on the Canon 5D</title>
		<link>http://www.hd4pc.com/techblog/2009/11/04/shooting-with-the-canon-5d/</link>
		<comments>http://www.hd4pc.com/techblog/2009/11/04/shooting-with-the-canon-5d/#comments</comments>
		<pubDate>Wed, 04 Nov 2009 08:44:06 +0000</pubDate>
		<dc:creator>McCarthyTech</dc:creator>
				<category><![CDATA[Product Reviews]]></category>
		<category><![CDATA[Workflow Ideas]]></category>
		<category><![CDATA[AVCHD]]></category>
		<category><![CDATA[Canon]]></category>
		<category><![CDATA[Compression]]></category>
		<category><![CDATA[DSLR]]></category>

		<guid isPermaLink="false">http://www.hd4pc.com/techblog/?p=58</guid>
		<description><![CDATA[The Canon 5D MarkII was the first DSLR that offered HD video capture capability worth considering as a replacement for film.  Its full sized sensor, full resolution 1080p recording, and high quality 40Mb AVCHD compression differentiated it from all competitors  I have experimented with many of the other DSLR options on the market, but most [...]]]></description>
			<content:encoded><![CDATA[<p>The <a href="http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&amp;fcategoryid=139&amp;modelid=17662" target="_blank">Canon 5D MarkII</a> was the first <a href="http://en.wikipedia.org/wiki/Digital_single-lens_reflex_camera" target="_blank">DSLR</a> that offered HD video capture capability worth considering as a replacement for film.  Its <a href="http://en.wikipedia.org/wiki/Full-frame_digital_SLR" target="_blank">full sized sensor</a>, full resolution <a href="http://en.wikipedia.org/wiki/1080p" target="_blank">1080p</a> recording, and high quality 40Mb <a href="http://en.wikipedia.org/wiki/AVCHD" target="_blank">AVCHD </a>compression differentiated it from all competitors  I have experimented with many of the other DSLR options on the market, but most of the projects I have worked on for the last year have been shot with the <a href="http://www.bhphotovideo.com/c/product/583987-REG/Canon_2764B004_EOS_5D_Mark_II.html/BI/6727/KBID/7302" target="_blank">Canon 5D</a>, so the majority of my experience and workflow expertise has been with that particular camera, most of which I will try to share here.  The workflow has improved greatly as the tools have become further developed over the course of the last year.  While the most glaringly obvious issue was that the 5D only shot 30fps, that was acceptable for certain workflows, especially if the 5D was the only camera on a project.<br />
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A much larger issue was the fact that the camera did not give the user manual control over certain important settings while in video mode, including <a href="http://en.wikipedia.org/wiki/Aperture" target="_blank">aperture</a>, <a href="http://en.wikipedia.org/wiki/Shutter_speed" target="_blank">shutter speed</a>, and <a href="http://en.wikipedia.org/wiki/Film_speed" target="_blank">ISO level</a>.  The settings could not be specifically dialed in, but any setting brought about through the automatic feature could be paused or locked for the duration of the next shot.  Having three variables all changing made it nearly impossible to trick the camera&#8217;s auto-exposure system into giving you the settings you wanted with any level of consistency.  The easiest setting to over-ride was aperture, since this was on the lense.  By preventing the camera from commuicating with the lense, the automatic feature could be disabled.  But with no electronic communication to the lense, the aperture must be set physically.  Older <a href="http://www.bhphotovideo.com/c/search?ci=274&amp;N=4288584247+4291315846&amp;BI=6727&amp;KBID=7302" target="_blank">Nikon</a> <a href="http://en.wikipedia.org/wiki/Nikkor" target="_blank">Nikkor</a> manual lenses were the only ones that easily <a href="http://www.kawamall.com/pd_one_piece_nikon_nikkor.cfm" target="_blank">adapted</a> to the 5D, that had physical rings for controlling the aperture manually.  Once the aperture was set, the standard practice was to point the camera at lighter or darker areas until the automatic exposure feature gave the user the desired settings, and then to lock it.  This process had to be repeated for each take or shot, as stopping record put the camera back into full auto.  Regardless, many people used this method of manipulating the camera to achieve the desired results for the first few months after its release, and I worked on a number of commercial projects that did.  Canon was not real excited about promoting the use of Nikon glass over its own lenses, so this was one of the first issues they fixed.  The 1.1.0 firmware update solved this problem by allowing the user to maunally set the aperture, shutter speed, and ISO, and keep it consistent from shot to shot.</p>
<p>So once the lenses issue was dealt with, were left with a selection of AVCHD encoded MOV files.  AVCHD is a processing intensive format that does not playback or edit very well.  While <a href="http://www.apple.com/quicktime" target="_blank">Quicktime </a>would play the files, it clipped the blacks and the whites at incorrect levels.  16 and 235 were being stretched to 0 and 255 on decode, lowering the dynamic range.  This was caused by Quicktime incorrectly interpreting one of the header fields on the file.  The solution to this was to use <a href="http://coreavc.com/" target="_blank">CoreAVC</a> to decode the files when converting into a different, and ideally more edit friendly, compression format.  Shortly after this workaround was developed, Apple released a Quicktime update (7.6) that fixed this particular issue entirely.</p>
<p>Beyond the clipping issue, there are other tricks to maximize the dynamic range of the 5D.  The picture style is used to control the way that the camera converts the 14bit RAW still into an 8-bit JPEG.  The same picture profile settings are applied to the 8-bit recorded video.  This allows you to do things to get the maximum detail out of the available 8-bits of color depth.  The first few projects I worked on that used the 5D, we used a custom picture profile that I got from Stu Maschwitz&#8217;s ProLost blog, <a href="http://prolost.com/blog/2009/1/19/5d-movies-arent-a-player-they-just-crush-a-lot.html" target="_blank">High Gamma 5</a>.  We did a number of comparison tests, and while High Gamma 5 gave us a wider total dynamic range, for our feature film, we eventually decided to use Neutral, one of the default Canon presets.  Neutral gave us a file that was closer to the final look we were going for, and with only 8bits of color depth, burning in your look, at least to a degree, should result in better picture quality at the end of the day.</p>
<p>Every file the camera records is named MVI_####.mov, with an auto-incrementing number, and no real override options.  That makes things simple on tiny projects, with one camera since each file has a unique name.  On larger projects, and ones that use more that one camera, (We usually have 15) file management can be a bit more work, to keep things straight throughout the post production process.  Our solution was to rename each MOV file with a unique 8 digit identifier as the new filename, and store the key to the original card and filename in a database.  This allows each clip to have a consistent name throughout the process, to show up on <a href="http://en.wikipedia.org/wiki/Edit_decision_list" target="_blank">EDLs</a> as a tape name or clip name as desired, without truncating unique values after the 8th digit for certain formats.  By the time we are done ,we usually have a source MOV, an Avid MXF, and an online Cineform AVI, all with the same content and file name.</p>
<p>Next up was the framerate problem, at 30p.  The first few projects I did with 5D we posted at 29.97, so the issue was solved with a simple reinterpretation of the framerate, when converting from the source AVCHD into an editing codec, and tweaking the audio .1% to match.  Unfortunately 29.97 footage doesn&#8217;t intercut with film very well, and won&#8217;t print back for theatrical masters either, so sometimes a 24p workflow is required.  For 24p projects, the conversion solution is much more complicated, involving motion compensated frame blending.  After extensive testing we concluded that this was best done with the Revision Effects <a href="http://www.revisionfx.com/products/twixtor/" target="_blank">Twixtor </a>plugin for AE, or using <a href="http://www.apple.com/finalcutstudio/compressor/pristine-format-conversions.html" target="_blank">Optical Flow </a>in FCS Compressor on OSX.  Having a PC centered workflow, I favor the AE based solution.  With render times at around an hour per minute of source footage, it is impractical to convert all of the source footage on large projects, which necessitates an offline edit.  Since we don&#8217;t have timecode and keycode, relinking for the online requires a bit more creativity.  We have found some interesting options that are unique to Premiere Pro CS4, related to the way it links EDLs to existing source footage that make this much simpler than our first tedious tests, which involved manually rebuilding projects at 24p back in Premiere Pro CS3.  The new CS4 version can convert the TC-In on an EDL to a framecounted In-point of an existing media file, with makes the onlining of 5D footage a relatively simple automatic process after a few find-replace edits (.mov to .avi in our case) to the EDL.  In the future, it looks like Canon is going to support 24p recording on all of their DSLR offerings, so all of these crazy 30p workarounds will soon be an obselete thing of the past.</p>
<p>Although it is much better in rough environments than most other electronics, Canon DSLRs do have their weaknesses.  I have operated a 5D in temperatures of <a href="http://www.youtube.com/watch?v=aKD56a3quMI" target="_blank">20 below zero</a>, and in the desert at over 120 degrees fahrenheit.  While we had no issues in the cold, where solid state recording has a huge advantage over tape, there are some issues at higher temperatures.  The camera sensor itself is a large piece of silicon, that generates a lot of heat on its own, and when combined with a high external temperature, in the worst cases is shuts off the camera.  You probably have to be over 150 degrees to get to that point, leaving the camera in a black metal box in direct sunlight for an extended period of time, but we have seen it happen.  A much more frequent problem, that is harder to detect, is that as the sensor begins to overheat, there will be much more video noise in the recorded picture, especially in the darks.  This is probably due to a higher latent voltage on the chip as its <a href="http://en.wikipedia.org/wiki/Electrical_resistance#Temperature_dependence" target="_blank">electrical resistance </a>changes with the temperature increase.  This has only been a problem for us when shooting with the same camera for many hours in a hot environment, and our solution is usually just to swap the camera bodies for one that has not been used in a while.  This obviously requires having multiple cameras on set, which isn&#8217;t always an option on lower budget projects.</p>
<p>The last issue, that we are still finding new ways to deal with, is <a href="http://en.wikipedia.org/wiki/Rolling_shutter" target="_blank">rolling shutter</a>.  Having a large format CMOS sensor, DSLRs are subject to rolling shutter, or inconsistencies between the top and bottom of the frame.  I have spent the last few months working on a project that put the 5D into some of the most intense situations.  As a fairly lightweight device, it is subject to more jitter and shake than a larger camera with more inertia, and with the camera moving, the rolling shutter results in the recorded picture being slightly geometrically skewed, depending on the direction of the motion.  We also shoot high speed objects, like helicopter rotor blades, which are known to cause <a href="http://vimeo.com/5934808" target="_blank">strange artifacts</a> in certain instances.  So far we have been lucky with that, and haven&#8217;t found any of those types of issues in our footage.</p>
<p>The type of rolling shutter artifact we are struggling with the most, is gunfire <a href="http://en.wikipedia.org/wiki/Muzzle_flash" target="_blank">muzzle flashes</a>, especially at night.  In the dark, the flash blows out the imager, but the flash does not last as long as even a single frame.  So with the rolling shutter, the top half of a frame will be totally blown out, with the bottom part looking normal, because the flash had subsided by the time that part of the chip was sampled, or vice versa.  Setting the shutter speed lower than the frame rate causes it to screw up more of the frame or frames, and setting it higher causes it to narrow the flash into a distinct horizontal band in the footage, neither of which is desirable.  One thing we have found that helps is setting the shutter on the 5D to 1/30th.  (We usually set it to 1/50 to get similar motion plur to film shot with a 180 degree shutter)  With the 30p framerate, the flash either affects an entire frame, or matching parts on two subsequent frames.  (Bottom part of one frame, and the reverse area on the top of the next one)  This gives us an entire over exposed frame if we stitch the two parts together.  This can be hand cut back into footage that has been brought from 30p to 24p by manually selecting frames.  It remains to be seen if this solution can be scaled practically to our entire movie.  The best way to avoid this issue is to avoid recording gunfire at close range in very dark environments.  The farther you are from the muzzle flash, and the more ambient light there is, the less it is going to flare out your camera, minimizing the degree of the resulting rolling shutter artifact.</p>
<p>So that should convey some of the challenges are in faced in using DSLRs for filmmaking, especially on large scale projects, but it is by no means an exhaustive list.  As the tools evolve to suit the cameras, and the cameras evolve to suit the tools, many of these issues will become much easier to solve and require fewer workarounds.  The AVCHD decoding issue was solved by a new release of Quicktime, the manual lense control was solved with a new firmware release from Canon.  The 30p conversion process is the next issue I see becoming a thing of the past, if Canon can get a 24p recording option onto the 5D.  I am looking forward to that day, but in the mean time I have 2TB of 30p footage, divided into 5,000 shots, to cut into a 24p film, so I have a lot of work ahead of me.</p>
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		<title>Elemental Accelerator on NVIDIA Quadro GPUs</title>
		<link>http://www.hd4pc.com/techblog/2009/09/01/elemental-accelerator-on-nvidia-quadro-gpus/</link>
		<comments>http://www.hd4pc.com/techblog/2009/09/01/elemental-accelerator-on-nvidia-quadro-gpus/#comments</comments>
		<pubDate>Wed, 02 Sep 2009 04:39:04 +0000</pubDate>
		<dc:creator>McCarthyTech</dc:creator>
				<category><![CDATA[Product Reviews]]></category>
		<category><![CDATA[Adobe]]></category>
		<category><![CDATA[AVCHD]]></category>
		<category><![CDATA[Compression]]></category>
		<category><![CDATA[Nvidia]]></category>

		<guid isPermaLink="false">http://www.hd4pc.com/techblog/?p=41</guid>
		<description><![CDATA[The Elemental Accelerator is a plugin for Adobe Media Encoder CS4 that harnesses the computing power of high end NVIDIA Quadro GPUs to encode video files faster.  It currently supports output to DVD, Blu-Ray, and a variety of other MPEG2 and H.264 formats.  Besides decreasing the time required to export and encode a file, it [...]]]></description>
			<content:encoded><![CDATA[<p>The <a href="http://www.elementaltechnologies.com/products/accelerator" target="_blank">Elemental Accelerator</a> is a plugin for <a href="http://www.adobe.com/products/premiere/" target="_blank">Adobe Media Encoder CS4</a> that harnesses the computing power of high end NVIDIA <a href="http://www.nvidia.com/object/builtforadobepros.html" target="_blank">Quadro GPUs</a> to encode video files faster.  It currently supports output to DVD, Blu-Ray, and a variety of other <a href="http://en.wikipedia.org/wiki/MPEG-2" target="_blank">MPEG2</a> and <a href="http://en.wikipedia.org/wiki/H264" target="_blank">H.264</a> formats.  Besides decreasing the time required to export and encode a file, it frees up the CPU for other tasks, so ideally you can continue working while your file is exported, with minimal impact on available performance.  As a side benefit, the encoder includes an option to create 5.1 channel surround <a href="http://en.wikipedia.org/wiki/Ac3" target="_blank">AC3</a> files for DVD and BluRay, which is not otherwise an option in Adobe Media Encoder.<br />
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The first version of the accelerator was released last spring, but was very limited in its scope.  It only created H.264 files, the surround sound options were not fully functional, and it only worked with the Quadro CX.  They are now on version 2.1 and have added acceleration for MPEG2 encoding, support for accelerated effects processing when exporting timelines from Premiere Pro CS4, fixed the audio issues, and open up support to include six other NVIDIA GPUs.  This includes two mobile chips, so the accelerator can run on laptops as well.  The first Macintosh version was also recently released, utilizing the new <a href="http://www.nvidia.com/object/product_quadro_fx_4800_for_mac_us.html" target="_blank">QuadroFX 4800 for Mac</a>.</p>
<p>NVidia and Elemental Technologies report that the accelerator can provide up to a 10x increase in encoding speeds, but mileage may vary in real world use.  With my system, I usually found encoding rates to be 50% to 100% faster with real world work, depending on the output settings, which is still a significant improvement if you do a lot of exporting.  The relative increase in encoding performance that you will experience depends on the speed of your system.  Older systems will see a major improvement, while newer high end workstations are already quite fast, so the change will be less dramatic.  My 3Ghz 8-Core workstation can already encode my HD timelines to MPEG2 for DVD faster than realtime, but with the Elemental Accelerator, I was able to cut the time for a two minute export from 1:27 to 30 seconds.  On a two hour clip, that would be a thirty minutes instead of an hour and a half.  My <a href="http://en.wikipedia.org/wiki/1080p" target="_blank">1080p</a> H.264 encodes for BluRay output only saw a 50% increase in encoding speed.</p>
<p>Exports of more complicated timelines see less of an improvement because render speed is not accelerated by the GPU as much as encoding speed is.  If you coming from a single flat clip, the increase in export speed will be much more apparent.  I don&#8217;t use <a href="http://en.wikipedia.org/wiki/AVCHD" target="_blank">AVCHD</a> footage, but when encoding from those types of source files, the GPU can accelerate the processing intensive AVCHD decode, as well as the MPEG2 or H.264 encode.  This should lead to more dramatic performance improvements, especially on laptops, where available CPUs are not as powerful as their desktop counterparts.  When I first reviewed the accelerator software earlier in the year, I anticipated that laptops would be even better served by a GPU based accelerator than desktops.  If you frequently make these types of exports from a laptop with a Quadro GPU, this plugin will be worth it.  In the desktop world it isn&#8217;t as simple, since the CPUs are not so weak by comparison to the GPU. If you make DVDs or BluRays for a living it will be a no brainer, but otherwise it all depends on how much of your day you spend waiting for exports to complete.</p>
<p>There are still a few other issues to be worked out.  The Adobe Media Encoder CS4 is designed to minimize the decrease in system performance during background rendering by pausing exports during timeline playback.  This may be necessary on lower end systems, but eight-core workstations should have power to spare, before we even factor in the GPU.  This prevents Adobe Premiere CS4 from really utilizing the CPU power being freed up by the GPU acceleration, because any time it is called upon, the render gets paused anyway.  Adding the option to disable that functionality would be beneficial to both Elemental Accelerator users, and anyone else with a high-end workstation, so that they could truly multi-task their system.  Until then, its probably best to work outside of Premiere Pro during your accelerated exports, to truly take advantage of your available system power.</p>
<p>With NVIDIA&#8217;s <a href="http://www.nvidia.com/object/quadro_dvp.html" target="_blank">Digital Video Pipeline </a>in the works, its easy to see where this could be going.  Once they have <a href="http://en.wikipedia.org/wiki/Serial_Digital_Interface" target="_blank">SDI</a> video inputs available, we could see realtime capture directly to H.264 and MPEG2 files, among many other things.  With professional I/O, the available GPU power could be used to turn the video card into a full editing accelerator card.  With <a href="http://www.nvidia.com/object/quadro_sli_mosaic_mode.html" target="_blank">SLI Mosaic </a>and other new developments with the <a href="http://www.nvidia.com/page/quadroplex.html" target="_blank">QuadroPlex</a>, I can see it being scaled up to 4K frame sizes with realtime performance, and I am definitely looking forward to that.</p>
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		<title>NAB Day 4</title>
		<link>http://www.hd4pc.com/techblog/2008/04/18/nab-day-4/</link>
		<comments>http://www.hd4pc.com/techblog/2008/04/18/nab-day-4/#comments</comments>
		<pubDate>Fri, 18 Apr 2008 07:03:18 +0000</pubDate>
		<dc:creator>McCarthyTech</dc:creator>
				<category><![CDATA[Hardware News]]></category>
		<category><![CDATA[AVCHD]]></category>
		<category><![CDATA[Fibre Channel]]></category>
		<category><![CDATA[Panasonic]]></category>
		<category><![CDATA[Stereoscopic 3D]]></category>

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		<description><![CDATA[I finally got a chance to explore the rest of the show today, and found a few more interesting newly released products. Panasonic has released a number of new camcorders.  They have three lines of solid-state recording: AVC-Intra to P2 Cards, DVCPro-HD to P2 Cards, and AVCHD to SDHC cards.  At the upper end, the [...]]]></description>
			<content:encoded><![CDATA[<p>I finally got a chance to explore the rest of the show today, and found a few more interesting newly released products.</p>
<p>Panasonic has released a number of new camcorders.  They have three lines of solid-state recording: AVC-Intra to P2 Cards, DVCPro-HD to P2 Cards, and AVCHD to SDHC cards.  At the upper end, the new <a target="_blank" href="http://www2.panasonic.com/webapp/wcs/stores/servlet/prModelDetail?storeId=11301&amp;catalogId=13251&amp;itemId=239667&amp;modelNo=Content04102008010225547&amp;surfModel=Content04102008010225547">HPX3700</a> and HPX2700 both record 10bit 4:2:2 to P2 in AVC Intra.  Both support &#8220;Varicam&#8221; variable framerate options at 1080p, and the top of the line HPX3700 model also has Dual-Link 4:4:4 RGB output capability.  In the prosumer market, three cameras that I would describe as variations to the <a target="_blank" href="http://catalog2.panasonic.com/webapp/wcs/stores/servlet/ModelDetail?displayTab=O&amp;storeId=11201&amp;catalogId=13051&amp;itemId=93120&amp;catGroupId=14571&amp;surfModel=AG-HVX200">HVX200</a> have been released.  All have 3 1/3&#8243; CCDs, and have the same basis shape look of the original.  The updated <a target="_blank" href="http://www2.panasonic.com/webapp/wcs/stores/servlet/prModelDetail?storeId=11301&amp;catalogId=13251&amp;itemId=239664&amp;modelNo=Content04102008124337622&amp;surfModel=Content04102008124337622">HVX200A</a> has improve optics and sensor, as well as the addition of an HD-SDI output.  The lower cost <a target="_blank" href="http://www2.panasonic.com/webapp/wcs/stores/servlet/prModelDetail?storeId=11301&amp;catalogId=13251&amp;itemId=240664&amp;modelNo=Content04102008125519917&amp;surfModel=Content04102008125519917">HPX-170 </a>removes the outdated SD-MiniDV tape option option, allowing only P2 recording.  Lastly, the <a target="_blank" href="http://www2.panasonic.com/webapp/wcs/stores/servlet/prModelDetail?storeId=11301&amp;catalogId=13251&amp;itemId=239668&amp;modelNo=Content04102008010809224&amp;surfModel=Content04102008010809224">HMC-150</a> is similar in physical formfactor, but record to SDHC cards in the AVCHD codec, at much lower bitrates.  The other two options in the new professional <a target="_blank" href="http://www.panasonic.com/business/provideo/avchd-home.asp?cm_sp=Provideo%20Site%20Promotions-_-Right%20Hand%20Promo-_-AVCHD%20Professional">AVCHD</a> line are the shoulder mount <a target="_blank" href="http://catalog2.panasonic.com/webapp/wcs/stores/servlet/ModelDetail?displayTab=O&amp;storeId=11201&amp;catalogId=13051&amp;itemId=227663&amp;catGroupId=14571&amp;surfModel=AG-HMC70">HMC-70 </a>and the 1 lb, 3CCD, HV30 competitor, the <a target="_blank" href="http://catalog2.panasonic.com/webapp/wcs/stores/servlet/ModelDetail?displayTab=O&amp;storeId=11201&amp;catalogId=13051&amp;itemId=109546&amp;catGroupId=14571&amp;surfModel=AG-HSC1U">HSC1U</a>.<br />
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Panasonic has also announced that a <a target="_blank" href="http://www2.panasonic.com/webapp/wcs/stores/servlet/prModelDetail?storeId=11301&amp;catalogId=13251&amp;itemId=239666&amp;modelNo=Content04102008125245884&amp;surfModel=Content04102008125245884">64GB P2 </a>card will be available later this year, which will double the maximum record time of all their cameras utilizing that technology.</p>
<p>Fibre Channel technology marches onwards, with the release of <a target="_blank" href="http://www.attotech.com/press/ATTO_8-Gb_FC_Tech.html">8Gb </a>products by ATTO.  Not to be confused with the existing 10Gb Fibre Channel specification used for Fibre switch interconnects.  The new 8Gb client connection technology provides 800MB/s bandwidth per channel.  Since I don&#8217;t currently have any application for transfers at that speed, I am most excited about the implications this will have on the prices of current &#8220;obselete&#8221; 4Gb Fibre HBAs, that I actually do use.</p>
<p>Last on the list, is the item I was most impressed with, but have the least realistic practical application for.  I was stunned to see a true 3D image on a large flat panel TV as I walked by a booth.  I guess <a target="_blank" href="http://www.business-sites.philips.com/3dsolutions/about/Index.html">Philips</a> released this a couple of months ago, but a totally separate company was displaying what they could do with it.  The display uses lense technology at the individual pixel level to control the projected light pattern, which allows it to display different images when viewed from different angles.  With the ability to send each eye a different image, a depth effect is easily created.  Instead of alternating only two left and right images, the Philips solution displays 9 different angles before repeating the sequence, greatly improving the probability that the viewer will percieve the image depth correctly.  This leads to the question of: where do the nine angles come from?  Instead of the traditional way of producing 3D depth effects by creating two separate streams, the Philips TV accepts a single flat video input, as well as a <a target="_blank" href="http://www.business-sites.philips.com/3dsolutions/3dtechnology/3DContentEnablingTechnology/Index.html">Z-depth map</a>, and renders the different angles live based on that information.  A Z-depth map can be easily created for animated content, but is nearly impossible to produce efficiently for regular video footage, limiting the potential sources of content.  A technology called <a target="_blank" href="http://www.business-sites.philips.com/3dsolutions/Section-14417/Index.html">Declipse</a> allows multple layer to be input, allowing a full lookaround effect for objects in the forground, which I can confirm, adds significantly to the effect.  Although it can not be easily applied to my stereoscopic style of shooting 3D, it was definitely a very impressive technology to see in action.  I intend to keep an eye on its further development, and look forward to seeing it deployed on a large scale.</p>
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