Apple Final Cut Pro 5 - Manual (Page 1770)

Glossary 419
dual system recording A recording process in which video is captured on one
recording device and audio is recorded on another. Dual system audio must be
synchronized onto the source videotapes prior to capture, or synced up in
Final Cut Pro.
duplicate frames indicator Colored bar that appears at the bottom of a clip’s video
item in the Timeline, indicating that frames are duplicated elsewhere in the sequence.
Useful for editing film where duplicate frames can cause complications during the final
negative cut.
duration The length of time between a clip’s In and Out points.
DV A standard definition digital videotape recorder format that records an 8-bit,
5:1 compressed component video signal with 4:1:1 color sampling (PAL uses 4:2:0).
Recorded using 1/4 inch tape. Supports two tracks of audio with 16-bit, 48 kHz audio
sampling, or four tracks of audio with 12-bit, 32 kHz audio sampling.
DVCAM A standard definition digital videotape recorder format that records an 8-bit,
5:1 compressed component video signal with 4:1:1 color sampling (PAL uses 4:2:0).
Recorded using 1/4 inch tape. Supports two tracks of audio with 16-bit, 48 kHz audio
sampling, or four tracks of audio with 12-bit, 32 kHz audio sampling.
DVCPRO A standard definition digital videotape recorder format that records an 8-bit,
5:1 compressed component video signal using 4:1:1 color sampling (PAL uses 4:2:0).
Recorded using 1/4 inch tape. Supports two tracks of audio with 16-bit, 48 kHz audio
sampling.
DVCPRO 50 A standard definition digital videotape recorder format that records an
8-bit, 3.3:1 compressed component video signal with 4:2:2 color sampling. Recorded
using 1/4 inch tape. Supports four tracks of audio with 16-bit, 48 kHz audio sampling.
DVCPRO HD A high definition video format that records an 8-bit compressed
component video signal with 4:2:2 color sampling. Both 720p and 1080i are supported.
Includes up to eight tracks of audio with 16-bit, 48 kHz audio sampling. Recorded using
1/4 inch tape. The total data rate is 100 Mbps.
DVD A disc that is the size of a CD, but that uses higher density storage methods to
significantly increase its capacity. Although usually used for video distribution,
DVD-ROM discs can also be used to store computer data.
dynamic range The difference, in decibels, between the loudest and softest parts of a
recording.
EDL (Edit Decision List) A text file that uses the source timecode of clips to
sequentially list all of the edits that make up a sequence. EDLs are used to move a
project from one editing application to another, or to coordinate the assembly of a
program in a tape-based online editing facility.