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Adobe Premiere Elements 15 Manual

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Saving and sharing your movies
Last updated 10/4/2016
If you intend to create a DVD or record to tape, codec compatibility is irrelevant. Your audience only needs to have the
hardware necessary to play back the file.
About data rate
With some video codecs, you can specify the data rate, which controls the amount of video information that is
processed each second during playback. Specifying a data rate in Premiere Elements sets the maximum data rate
because the actual data rate varies according to the visual content of each frame.
The data rate you specify depends on the purpose of the video. The following list describes data rate guidelines for some
us
es:
DVD production The data rate should maximize quality while fitting the entire program within the space available on
the DVD. By default, Premiere Elements automatically adjusts the DVD data rate.
Non-DV videotape production The data rate should be well within the data transfer rate of your hard disk because the
video will be played back from the hard disk to the recording device. Check your documentation for information on
the data transfer rate of your hard disk.
Hard disk playback Determine the typical data transfer rate of your audience’s hard disks and set the data rate
accordingly. Generally, 7200 rpm hard disks have sustained data rates of 20 to 35 MB per second, which is high. In
comparison, the average data rate of digital video is 3.6 MB per second. So, to achieve high-quality playback, you may
not need to set the data rate as high as 20 to 35 MB per second. However, if you are exporting video for use in another
editing system or in a compositing application, such as Adobe After Effects, export at the maximum quality. Use a
lossless codec, which is one that compresses without discarding information, and specify the data rate that the editing
system supports for video capture and editing.
CD-ROM playback The data rate depends on the speed of the CD drive. For example, if you are preparing a final video
file for a double-speed CD-ROM drive (300 kilobytes per second) you might specify between 150 kilobytes and 20
0
kilo
bytes per second to account for both the data rate of the drive and the system overhead required to move the data.
Intranet playback The data rate can be 100 kilobytes per second or faster, depending on the speed of your intranet. An
intranet is an in-house or private network that uses Internet network protocols. Because they are limited in scope,
intranets generally use higher-quality communications lines than standard telephone lines, so they are usually much
faster than the Internet.
Streaming video over the web Though there are fewer users with dial-up connections than in previous years, you
should still consider tailoring your data rate to users still employing this method of accessing the Internet if you want
your file to be viewable to the largest number of users. Streaming video on the web is constrained by the limited
bandwidth (56 KB or less) of most consumer modems. Use a higher bitrate if you know your audience has broadband
Internet access, such as DSL or cable modem service.
Playing back from a handheld device The data rate is very important due to the relatively small size, capacity, and lesser
speed of handheld devices. The data rate can range from 8 to 90 kilobits per second, depending upon the device. You
can choose preset QuickTime export options in Premiere Elements to export a file optimized for playback on a
handheld device.
Downloading a video file over the web The data rate is less important than the size of the video file because the main
concern is how long it takes to download the file. However, it still may be desirable to reduce the data rate for
downloaded video because doing so reduces the size of the video file, making it download faster.
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