Digital Video Editing Department of Computer Education KMUTNB

3 Video Editing

5 Capturing and Importing Source Clips Source material exists in two main forms: Digital media is stored in a file format that a computer can read and process directly. All digital-video (DV) camcorders and decks record video and audio in digital format. Analog media must be digitized, or converted to digital form, before a computer can store and process it.

Understanding offline and online editing Online editing is the practice of doing all editing (including the rough cut) on the same clips that will be used to product the final cut. In offline editing, you edit video using low-quality clips and produce the final version using high-quality clips on a high-end system.

Connecting the analog video source

Connecting the analog video source

Connecting the DV video source IEEE1394 (FireWire/i.Link).

Connecting the DV video source IEEE1394 (FireWire/i.Link).

Video Resolution

NTSC & PAL

Aspect Ratio Pixel aspect ratio specifies the ratio of width to height of one pixel in an image.

Aspect Ratio

Setting pixel aspect ratio Square Pixels Uses a 1.0 pixel (640 x 480 or 648 x 486) D1/DV NTSC Uses a 0.9 pixel (720 x 480 or 720 x 486) D1/DV NTSC Widescreen Uses a 1.2 pixel (720 x 480 or 720 x 486) result is a 16:9 frame D1/DV PAL Uses a pixel(720 x 576) result is a 4:3 frame D1/DV PAL Widescreen Uses a pixel (720 x 576) result is a 16:9 frame D4/D16 Standard Uses a pixel (1440 x 1024 or 2880 x 2048) result is a 4:3 frame

Transitions The visual change from one clip to another is called a transition.

Image Mask

Gradient Wipe transition

Creating Titles The safe zones indicated by Premiere represent only NTSC video and are only guidelines for other video standards such as PAL or SECAM.

Alpha Channel key An alpha channel is a fourth channel in an RGB image that defines what parts of the image are transparent or semitransparent.

Garbage mattes Sometimes the subject of a scene is properly keyed except for undesired objects. Use a garbage matte to mask out those objects. You can then place the keyed subject in another scene for simple effects.

Animating a Clip Animate a clip by creating a motion path in the Motion Settings dialog box. rotation, zooming, delays, and distortion

Exporting video from Premiere File types available for export Video formats Microsoft AVI, Animated GIF, QuickTime, MPEG, RealMedia, Windows Media, DV Audio-only formats AIFF, MP3, and Windows Audio Waveform Still-image and sequence formats Filmstrip, FLC/FLI (Windows only), GIF sequence, PICT and PICT sequence (Mac OS only), Targa and Targa sequence, TIFF and TIFF sequence, Windows Bitmap and Windows Bitmap sequence