Video Broadcast Standards _ Fundamental Part 4

 Video Broadcast Standards

Television broadcast systems, video, audio, and channel systems are dissimilar in different countries. Due to this reason different countries follow different video standards. There are types of video standards that are accepted worldwide.

They are as follows

National Television Standards Committee (NTSC)

NTSC is the first set of standard protocol for television introduced in 1954. It has the capacity to display 525 lines displayed at 30 (29.97) frames per second (FPS). NTSC has a faster frame rate that reduces the flickering between the frames. NTSC is used in North America, a portion of South America, Japan, South Korea, and also in some countries in Asia.

 

Phase Alternating Line (PAL)

PAL is extensively used in Western Europe, Asia, throughout the Pacific, South America, and Southern Africa.It has high resolution of 625 lines at 25 frames per second. There is more than one PAL standard followed by countries around the globe.

 

Systeme Electronique Couleur Avec Memoire (SECAM)

SECAM has the same resolution as that of PAL but they are incompatible with each other.

 

Digital Video (DV)

This format is used in DV and Digital-8 camcorders. It is Capturing of DV format video and audio. The saving and editing of the captured audio or video can then be done in a video editor. The traditional method of analog-to-digital conversion by a video capture card is not followed while video capture. DV can be captured in both interlaced and scan formats.

                       

High Definition Television (HDTV)

HDTV is a new digital television technology, which is a part of Advanced Television. HD transmissions can be done for both interlaced and progressive scan-based television sets. The online broadcast groups are going by the HDTV standard while HDTV is replacing most of the cable transmissions standards all over the world.