Adobe 25520388 - Premiere Pro - PC Using Manual page 453

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USING ADOBE PREMIERE PRO
Exporting
You can export a movie from Adobe Premiere Pro directly into the FLV and F4V formats. You can choose from
severalExport Settings presets. These presets balance file size against audio and video quality to achieve the bit rate
needed for any target audience or device. If you export the movie with an alpha channel, you can use the movie easily
used as a layer in a rich media project.
You can import the FLV or F4V file into Adobe Flash. Flash reads sequence markers as navigational or event cue
points. In Flash, you can also customize the interface that surrounds your video.
Alternatively, you can use Flash to create animations for use in movies. You can create an animation in Flash. You can
export the animation as an FLV or F4V file. Then, you can import the FLV or F4V file into Adobe Premiere Pro for
editing. In Adobe Premiere Pro, for example, you could add titles or mix the animation with other video sources.
Tips for creating FLV and F4V files
Follow these guidelines to deliver the best possible FLV or F4V files:
Work with video in the native format of your project until your final output
If you convert a precompressed digital video format into another compressed format such as the FLV or F4V format,
the previous encoder can introduce video noise. The first compressor already applied its encoding algorithm to the
video, reducing its quality, frame size, and frame rate. That compression could have introduced digital artifacts: noise.
This noise affects the final encoding process, and a higher data rate is often required to encode a good-quality file.
Strive for simplicity
Avoid elaborate transitions—they don't compress well and can make your final compressed video look "chunky"
during the change. Hard cuts compress better than dissolves.
Know your audience data rate
When you deliver video over the Internet, produce files at lower data rates. Users with fast Internet connections can
view the files with little or no delay for loading, but dial-up users must wait for files to download. Make the clips short
to keep the download times within acceptable limits for dial-up users.
Select the proper frame rate
Frame rate indicates frames per second (fps). If you have a higher data rate clip, a lower frame rate can improve
playback through limited bandwidth. For example, if you compress a clip with little motion, cutting the frame rate in
half can save you only 20% of the data rate. However, if you compress high-motion video, reducing the frame rate has
a much greater effect on the data rate.
Because video looks much better at native frame rates, leave the frame rate high if your delivery channels and playback
platforms allow. For web delivery, get this detail from your hosting service. For mobile devices, use the device-specific
encoding presets and the device emulator available through Adobe Media Encoder in Adobe Premiere Pro. If reducing
the frame rate, the best results come from dividing the frame rate by whole numbers.
Note: To embed video clips into a SWF file, match the frame rate of the video clip to the frame rate of the SWF file. To
encode video using the frame rate of an FLA file, use the Advanced Video Encoding settings in the FLV Import wizard.
Select a frame size that fits your data rate and frame aspect ratio
At a given data rate (connection speed), increasing the frame size decreases video quality. When you select the frame
size for your encoding settings, consider frame rate, source material, and personal preferences. To prevent
pillarboxing, choose a frame size of the same aspect ratio as the frame aspect ratio of your source footage. For example,
pillarboxing results when you encode NTSC footage to a PAL frame size.
Last updated 1/16/2012