- Data rate
The speed at which data can be transferred, often described in megabytes per second (MB/sec). The higher a video file's data rate, the higher quality it will be, but it will require more system resources (processor speed, hard disk space, and performance). Some codecs allow you to specify a maximum data rate for a movie during capture.
- Decibel (dB)
A unit of measure for the loudness of audio.
- Decompression
The process of creating a viewable image for playback from a compressed video, graphics, or audio file. Compare with compression.
- De-interlace filter
Used to convert video frames composed of two interlaced fields into a single unified frame; for example, to create a still image of an object moving at high speed.
- Desaturate
To remove color from a clip. 100 percent desaturation results in a grayscale image.
- Device control
A cable that allows Final Cut Pro to control a video deck or camera. Three protocols are used most frequently to control video devices: serial device control via the RS-422 and RS-232 protocols, and FireWire for DV camcorders and decks.
- Digital
Data that is stored or transmitted as a sequence of ones and zeros.
- Digital video
Video that has been captured, manipulated, and stored using a digital format, which can be easily imported into your computer. Digital video can come in many different formats such as Digital-8, DVC Pro, DVCAM, or DV.
- Digitize
To convert an analog video signal into a digital video format. A method of capturing video. - See also [Capture]
- Dissolve
A transition between two video clips where the first one fades down at the same time the second one fades up.
- Distort
An option in the Tool palette that allows you to change the shape of an image by moving any of its four corners independently of the others.
- Dock
A strip on the Desktop where you can store the program alias icons that you use most frequently.
- Drop frame timecode
A type of timecode that skips ahead in time by two frame numbers each minute, except for minutes ending in "0" (10, 20, 30, and so on). Although timecode numbers are skipped, actual video frames are not skipped. Drop frame timecode is a reference to real time.
- Drop shadow
An effect that creates an artificial shadow behind an image or text.
- Dub
Making a copy of an analog tape to the same type of format.
- Duration
The length of a clip or a sequence from its In to its Out point, or the length of time that it takes that piece of video to play.
- DV
A standard for a specific digital video format created by a consortium of camcorder vendors, which uses Motion JPEG video at a 720 x 480 resolution at 29.97 frames per second (NTSC) or 720 x 546 resolution at 25 fps (PAL), stored at a bit rate of 25 MB per second at a compression of 4:1:1.
- DVD
A disc that is the size of a CD, but uses higher-density storage methods to significantly increase its capacity. Usually used for video distribution, DVD-ROM discs can also be used to store computer data.
- DVD marker
A location indicator that can be seen in DVD Studio Pro used to mark a chapter.
- Dynamic range
The difference, in decibels, between the loudest and softest parts of a recording.
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