5 Terms
Contributors in Video
Video
Active picture area
Entertainment; Video
The part of a TV picture that contains actual picture as opposed to sync or other data. Vertically, the active picture area is 487 lines for NTSC and 576 lines for PAL. The inactive area is called ...
Active video
Entertainment; Video
The part of the video waveform that is not specified to be blanking, burst, or sync information. Most of the active video, if not all of it, is visible on the display screen.
Active window
Entertainment; Video
On a PC, the only window that recognises input (activity) from the keyboard and mouse; only one window is active at a time.
Activemovie
Entertainment; Video
Microsoft’s architecture for the control and processing of streams of multimedia data and software that uses this architecture to play digital video and sound. It is intended to supersede Video for ...
Adaptation
Entertainment; Video
Visual process whereby approximate compensation is made for changes in the luminances and colours of stimuli, especially in the case of changes in illuminants.
Adaptation field
Entertainment; Video
Ancillary programme data (especially PCR) which are uncoded and are transmitted at least every 100 ms after the TS header of a data stream (PID) belonging to a program.
Audio
Entertainment; Video
A) Signals consisting of frequencies corresponding to a normally audible sound wave ranging between the frequencies of 20 Hz to 20 kHz. b) A DC signal with varying amounts of ripple. It is sometimes ...
