The Densité Series XVP-1801 is a high-quality, HD/SD up/down/crossconverter and video/audio signal processor, with AFD support and background keying. The superior conversion quality of the XVP at both 50 and 59.94 Hz stems from multiple technologies, including advanced motion adaptive de-interlacing and anti-ringing. To ensure that up/downconverted television is presented in the correct aspect ratio when aired, the XVP module supports AFD (Active Format Description) SMPTE-2016. This provides automatic aspect ratio control using embedded control commands, and prevents on-air aspect ratio errors such as the postage stamp effect. In addition to AFD, the XVP also supports VLI (Video Line Index) RP-186 and WSS, which allows the card to adjust its ARC automatically without any external intervention.