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ULEAD VIDEOSTUDIO USER GUIDE
170
Compression
Making a file smaller by removing redundant data. Nearly all digital video is
compressed in some way or another. Compression is achieved through a codec.
Data Rate
The amount of data per second that is transferred from one part of your computer
to another. In digital video, the data rate of your source is very important: CD-
ROMs have lower data rates than hard disks. The data rate of the Internet is very
low.
Device Control
A software driver that allows programs to control video sources like the camcorder
or VCR.
Digital
Computer data consisting of ones and zeros. Contrast digital information with
analog.
Digitizing
The process of converting analog input to a digital form so that it can be used by
the computer.
DNLE
Digital Non-Linear Editing is a method of combining and editing multiple video clips
to produce a finished product. DNLE offers random access to all source materials
and all portions on the master tape at all times during the editing process.
Driver
A software program that controls the connection between a specific device and a
computer.
DV
Digital Video with a capital "D" and a capital "V" stands for a very specific format of
video, just like VHS or High-8. This format can be understood (played back,
recorded) by your camcorder and also by your computer, if you have the proper
hardware (capture card) and software (DV codec). The most exciting thing about
DV is that it can be copied from your camcorder to your computer, and then back to
your camcorder (after editing, of course) without any loss of quality.