Alcorn Mcbride Digital Video Machine HD, Руководство пользователя

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Making Videos 27
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Making Videos
Making an WMVHD File
Only the ISHD can play WMVHD files. WMVHD is a compressed video
format. There are a variety of tools and formats for encoding WMVHD. You
can learn more about it at
http://www.wmvhd.com/
What Is An MPG File?
MPG is short for
MPEG, which
stands for Motion
Picture Experts
Group, the
organization that
codified the
audio/video
compression scheme
used in the
Information Station.
The Information Station plays MPG files that contain digital video
encoded in high-resolution by an algorithm known as “ MPEG-2” .
Many encoding systems produce MPG files, but not all MPG files may
be played on the Information Station. Many MPG files are designed
for playback in a small window on a PC, or for transfer over the
internet. These MPG files are generally of very low resolution at slow
frame rates.
The Information Station is designed to accept MPG files encoded at a
resolution of 704 or 720 x 480 (NTSC) and 704 or720 x 576 (PAL).
The Information Station can play MPG files encoded at bit rates up to
15.0 Megabits per second. Since higher bit rates equate to better picture
quality, we encourage you to encode your video at the highest bit rate
supported.
How Do I Make an MPG File?
The most important step in creating video for your application is to perform the
highest quality MPEG encoding of your source material.
Encoding professional-quality MPEG material is more of an art than a science.
The person encoding the material must be experienced and the hardware well-
chosen, so users deciding whether or not to encode their material themselves
should put a lot of thought into what would best suit their needs.