Retrospective: Historical Briefs From Past Issues

The September 1999 Journal published in: “Factors to Consider When Choosing an MPEG-2 Encoder” by Neil Brydon: “Before an encoder reaches the test bench, ensure that the basic encoder and system architecture can meet the application. The following checklist of hard features may help decide which systems to consider for further evaluation. Serial digital video with embedded audio. High-quality PAL/NTSC composite decoder. Digital and analog inputs to audio encoder. Optional modules for more additional audio channels. Prefiltering and noise reduction. Network management. Local control panel. VBI handling capabilities. 4:2:2/4:2:0 switchable. 576 and 480 vertical resolution plus support for expanded window format (512 and 608). Fully flexible GOP control. Automatic I-frame insertion for scene cut detection. Field/frame adaptation modes. Standard interfaces (open standards). Film modes (repeat field detection).”