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MPEG-1, Audio Layer 3 is the popular audio format known as MP3 . As cheaper and more powerful consumer decoding hardware became available, more advanced formats such as MPEG-2 and MPEG-4 were developed. These newer formats are more complex and require more powerful hardware, but the formats also achieve greater coding efficiency, i.e., quality per bitrate. MPEG-1 PARTS MPEG-1 consists of several standards termed "parts", as follows:
Reference: ISO/IEC JTC1/SC29/WG11 (June 1996) HISTORY Developments in video conferencing techniques and standards such as (MPEG) investigated how to store compressed video on a CD-ROM , which led to the development of the MPEG-1 standard. More history at MP3 History . MPEG-1 VIDEO MPEG-1 video was originally designed with a goal of achieving acceptable video quality at 1.5 Mbit/s data rates and 352x240 (29.97 Frame Per Second ) / 352x288 (25 frame per second) resolution. While MPEG-1 applications are often low resolution and low bitrate, the standard allows any resolution less than 4095x4095. Nevertheless, most implementations were designed with the Constrained Parameter Bitstream specification in mind. At present MPEG-1 is the most compatible format in the MPEG family; it is playable in almost all computers and VCD/DVD players. One big disadvantage of MPEG-1 video is that it supports only Progressive pictures. This deficiency helped prompt development of the more advanced MPEG-2 . SEE ALSO Related standards: |
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