Exporting For The Web - Adobe 65021048 User Manual

ADOBE PREMIERE PRO CS3 407
User Guide
For the production phase, you'll need to consider the acquisition format that best suits your needs. During post-
production, you may need to transfer the source footage to the appropriate format for editing, effects, and sound
design (using programs such as Adobe Premiere Pro, After Effects, and Soundbooth). When exporting from post-
production software, you must determine the file settings appropriate to the film stock you'll use, or you'll need to
decide how to best translate your editing decisions to film. If you choose to transfer video to film, it's likely you'll
employ a facility that can accomplish the transfer using a film recorder, a device that prints video frames to motion
picture film frames. To determine the best course, consult the production and post-production facilities before you
begin.

Exporting for the web

About exporting for the web
In contrast to broadcast media or storage-based delivery media such as DVD or videotape, the web accommodates
a wider variety of video and audio standards and devices. While a growing number of viewers have a broadband
Internet connection that can support relatively high-quality content, others may use equipment that supports only
low data rates and, therefore, lower-quality content. For this reason, it's often necessary to export your project in a
variety of formats, each tailored to different audience viewing capabilities. The process is analogous to exporting to
various physical media types, such as VHS and DVD, except that the choices are more varied.
The Adobe Premiere Pro and Adobe After Effects export settings contain presets for many bandwidth scenarios so
that you can more easily match your output files with the viewing capabilities of your audience.
Types of web delivery
Compared with other delivery media, web standards for delivering video and audio content are varied and incon-
sistent. Audiences view content over the web using a variety of software and hardware configurations that support
a wide range of data bandwidths. For this reason, there are numerous codecs designed to make video web-friendly.
With its export settings, Adobe Premiere Pro includes a number of presets that aid in formatting a movie suited for
particular audiences, according to their system's capabilities. Many formats employ the following technologies:
A progressive download movie can begin playing before it is completely
Progressive downloadable video
downloaded. The movie player software (such as QuickTime Player, Windows Media Player, or Real Player) calcu-
lates how long it will take to download the entire movie, and then begins playback once enough of the movie has
been downloaded so that it can play back uninterrupted.
Streaming media delivers video over the web or other network without downloading a file to a
Streaming video
hard disk, comparable to the way a traditional broadcast works. The bitrate—and therefore the quality—of
streaming video is constrained by the bandwidth of the network or modem. When streaming video over the web,
you can specify a higher bitrate if you know your audience has broadband Internet access, such as DSL or cable
modem service. To provide versions tailored to the bitrate limits of different viewing scenarios, you can use the
encoder's Audiences or Alternates feature. Streaming video is most effectively deployed over an office's intranet,
where high-speed bandwidths are more common and consistent. Adobe Flash Video, QuickTime, Windows Media,
and RealMedia file types include streaming media formats.
April 1, 2008