Operation Manual

Annex: Digital Video and Data Storage 257
www.magix.com
Video Editing on the PC
Digital video processing with the PC is comparable to audio
intervals, and the values resulting from it can then be processed by
he accuracy of each individual measurement results
in the resolution, and the frequency of the measurements results in
o Interleaved).
V
ly uses compression
for saving storage space.
MPEG Compression
.7 GB storage capacity is enough for 4 Minutes. For this
reason, the available pictorial material must be effectively
is based on the simple fact that up to 96% of digital
video data consists of repetition and can be compressed without
Annex: Digital Video and Data Storage
processing. The analog medium that is video must first be digitized
before it can be processed by the computer.
Digital video processing functions quite similar to recording via a
sound card. The signal flow is measured in very short, regular
the computer. T
the frame rate. The more precise and frequent the signal is
measured, the higher the quality of the digitized video, but also the
higher demands on the capture performance and the required
storage space. The Windows standard format for video files is AVI
(audio and vide
Digitizing video adopts either the camera or the graphics card, a T
card (e.g. Miro PCTV), or a video card (e.g. Fast AV Master).
However, video handling makes much higher demands upon the
hardware if good image quality is required. In order to be able to
reasonably process video files on today’s PCs, they must be
compressed. Digital audio, on the other hand on
MPEG means "Moving Picture Experts Group" and defines a
workgroup which cooperates with the International Standards
Organization (ISO) as well as the international Electro Technical
Commission (ETC) to develop standards for video and audio coding.
Generally, the graphic data rate of the digital video standard is 167
megabits per second, which, when not compressed, requires a far
higher storage capacity than a DVD can offer. A one-sided DVD 5
with 4
compressed – a function which is achieved with the MPEG
procedure.
This procedure
visible degradation of the pictorial quality.