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Adobe Premiere allows users to create high-quality digital movies and videotapes. This editing program lets users combine video, animation, still images, and graphics with one powerful tool. Files on the CD-ROM are created ...
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Adobe Premiere allows users to create high-quality digital movies and videotapes. This editing program lets users combine video, animation, still images, and graphics with one powerful tool. Files on the CD-ROM are created specifically to accompany lessons to guide readers through each technique for results right on screen.
How Premiere fits into video production
Making video involves working through three general phases:
The rest of this chapter describes fundamental concepts that affect video editing and other post-production tasks in Premiere. All of the concepts in this section and the specific Premiere features that support them are described in more detail in the Adobe Premiere 5.0 User Guide.
If any stage of your project involves outside vendors, such as video post-production facilities, consult with them before starting the project. They can help you determine what settings to use at various stages of a project and avoid time-consuming, costly mistakes. For example, if you're creating video for broadcast, you should know whether you are creating video for the NTSC (National Television Standards Committee) standard used primarily in North America and Japan, the PAL (Phase Alternate Line) standard used primarily in Europe, Asia, and southern Africa, or the SECAM (Sequential Couleur Avec Memoire) standard used primarily in France, the Middle East, and North Africa.
Measuring video time
In the natural world, we experience time as a continuous flow of events. However, working with video requires precise synchronization, so it's necessary to measure time using numbers. Familiar time divisions-hours, minutes, and seconds-are not precise enough for video editing, because a single second might contain several events. This section describes how Premiere and video professionals measure time, using standard methods which count fractions of a second in frames.
How the timebase and frame rates affect each other
You determine how time is divided in your project by specifying the project timebase. For example, a timebase of 30 means that each second is divided into 30 units. The exact time at which an edit occurs depends on the timebase you specify, because an edit can only occur at a time division, and using a different timebase causes the time divisions to fall in different places.
The time divisions in a source clip are determined by the sourceframe rate. For example, when you shoot source clips using a video camera with a frame rate of 30 frames per second, the camera records the scene every 1/30th of a second. Note that whatever was happening between those 1/30th of a second intervals is not recorded, so a higher frame rate provides higher time resolution.
You determine how often Premiere generates frames from your project by specifying the projectframe rate. For example, a frame rate of 30 frames per second means that Premiere will create 30 frames from each second of your project.
For smooth and consistent playback, the timebase, the source frame rate, and the project frame rate should be identical. In general, use 24 fps (frames per second) for editing motion-picture film, 25 fps for editing PAL and SECAM video, 29.97 fps for editing NTSC video, and 30 fps for other video types. (NTSC was originally designed for a blackand-white picture at 30 fps, but signal modifications made in the mid-20th century to accommodate color pictures altered the standard NTSC frame rate to 29.97 fps.)
Sometimes the time systems don't match. For example, you might be asked to create a video intended for CD-ROM distribution that must combine motion-picture source clips captured at 24 fps with video source clips captured at 30 fps, using a timebase of 30 for a final CD-ROM frame rate of 15 fps. When any of these values don't match, it is mathematically necessary for some frames to be repeated or omitted; the effect may be distracting or imperceptible depending on the differences between the timebase and frame rates you used in your project....
|A Tour of Adobe Premiere||10|
|Lesson 1||Getting to Know the Work Area||48|
|Lesson 2||About Digital Video Editing||70|
|Lesson 3||Basic Editing||96|
|Lesson 4||Adding Transitions||122|
|Lesson 5||Adding Audio||146|
|Lesson 6||Additional Editing Techniques||174|
|Lesson 7||Advanced Editing Techniques||194|
|Lesson 8||Creating a Title||224|
|Lesson 10||Adding Motion||290|
|Lesson 11||Applying Video and Audio Filters||316|
|Lesson 12||Subclips and Virtual Clips||346|
Posted November 24, 2001
I used this book to get ACE certified in Premiere. This book is everything you need to learn about Premiere. If you want something to help you learn the basics, or if you want to perfect your skills for certification, this book is the one.Was this review helpful? Yes NoThank you for your feedback. Report this reviewThank you, this review has been flagged.