Xoro HMB 1000 - Handbuch (Seite 70)

34 HMB 1000
English
Glossary
Interlaced
The picture is created by writing two half pictures with a 1 line set-off on the
screen. This is standard on conventional 50 Hz TV sets.
MP3
MPEG 1 Layer 3 Codec, or short MP3, was developed in 1987 by Fraunhofer
Institut für Integrierte Schaltungen and was a revolution in audio compression.
In 1992 it became part of MPEG-1 video format. As MP3 offered high quality
audio at incredible small file size, it became an won standard. With this codec
one can compress audio files to about 1 MB / minute.
MPEG-4
MPEG-4 is a standard used primarily to compress audio and video (AV) digital
data. Introduced in late 1998, it is the designation for a group of audio and
video coding standards and related technology agreed upon by the ISO/IEC
Moving Picture Experts Group (MPEG). The uses for the MPEG-4 standard are
web (streaming media) and CD distribution, conversation (videophone), and
broadcast television, all of which benefit from compressing the AV stream.
MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other
related standards.
By MPEG-4 could be used a lot of different audio compression method. Most
popular are MP3 and AC3.
NTSC
Widespread TV standard, especially in US and Asia. 525 (480 viewable) Lines
and 60 Hz refresh rate. Describes the way the video information (brightness,
colour, refresh rate etc.) is transmitted. Within Europe, this video standard only
appears on imported media (like US DVDs).
OSD
The OSD (On Screen Display) is all the menus and options shown on the
screen.
PAL
European TV standard. PAL stands for Phase Alternation Line; refresh rate: 50
Hz, Resolution: 625 Lines, 576 visible lines. Describes the way the video infor-
mation (brightness, colour, refresh rate etc.) is transmitted.
Progressive Scan
Progressive Scan writes a whole picture in one step, while the normal inter-
laced TV-picture is composed of two half pictures. It delivers a significally en-
hanced picture, especially when used on vide beamers, PC monitors or LCD
TV.