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     <a href="WS5b3ccc516d4fbf351e63e3d117cbc98bab-7ff0.html"><b>Recording clips</b></a> 
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        <h1>
          Recording DVCPro HD
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        <div><p>To record
DVCPro HD, the computer must rapidly process large amounts of data. A
hard drive spinning at 7200 rpm should be able to process the 100
Mbit/s flowing from DVCPro HD sources, unless the drive must often
pause to seek empty space. If the drive pauses for too many of these
seeks, the result might be dropped frames when recording and choppy
performance during playback.</p>
<p>To minimize the number of seeks, Adobe strongly recommends that
you regularly defragment the hard drive used for video capture.
For the best results, dedicate a hard drive to video projects and
start each project with nothing on the drive. (Reformat the drive
after you offload all the old content.)</p>
<div class="section"><h4 class="sectiontitle">Identifying performance issues with DVCPro HD</h4><p>When
monitoring and reviewing DVCPro HD, you might see the following
issues if CPU usage reaches 100%:</p>
<ul><li><p>When monitoring
the live stream from the camera, Adobe OnLocation skips frames that
it doesn’t have time to process. For 1080i video in particular,
the application can also fall behind the live action. A latency
of six to seven frames is unavoidable because of the required processing,
but with an over-worked CPU, that can increase to over 20 frames.</p>
</li>
<li><p>When playing a DVCPro HD clip, Adobe OnLocation displays
every frame as fast as it can (up to real time). If CPU usage is
at the maximum, playback might occur in slow motion.</p>
</li>
</ul>
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<div class="section"><h4 class="sectiontitle">Improving performance with DVCPro HD</h4><ul><li><p>Quit other applications, including anti-virus software.</p>
</li>
<li><p>Hide any panels that you’re not using. The Waveform Monitor
and Vectorscope use the most CPU resources.</p>
</li>
<li><p>In the Field Monitor menu, change the Visible Lines option
to Odd or Even. (See <a href="WS89e4fde9608114f42b7a9e88125489863ce-8000.html">Display video lines</a>.)</p>
</li>
<li><p>Use a faster computer. Adobe OnLocation runs most efficiently
on dual-core processors.</p>
</li>
</ul>
<div class="note"><span class="notetitle">Note:  </span>Adobe OnLocation does
not support the 24pN and 30pN formats from Panasonic® cameras.</div>
</div>
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