Operation Manual

109
APPENDIX
What Is MPEG?
MPEG, simply, is an acronym short for the Moving Picture Experts Group which
belongs to the family of ISO/IEC standards (International Organization for
Standardization and International Electrotechnical Commission). It is a compression
technology for digital video and audio signals intended for consumer distribution.
Included in the MPEG family are:
MPEG-1 (Audio/Video)
MP3 or MPEG-1 Audio Layer 3 (Audio)
MPEG-2 (Audio/Video)
MPEG-4 (Interactive Multimedia System)
MPEG-7 (Multimedia Database & Retrieval)
MPEG technology is defined as a bit-stream representation for synchronized digital
audio and digital non-interlaced or interlaced (MPEG-2 includes both) video
compressed to fit into a certain bandwidth:
MPEG-1 -- 1.5-4-0 Mbps (megabits per second)
MPEG-2 -- 4.0-10.0 Mbps
MPEG is responsible for multiplexing and synchronizing one video stream with a
single or multiple audio streams. MPEG-1 was designed to reproduce VHS/VCR
quality in a digital format, while the MPEG-2 concept, similar to MPEG-1, is
intended to cover a wider range of applications including DVD quality and its
primary goal of an all-digital transmission of broadcast TV at coded bitrates between
4 and 9 Mbps.