Broadcast reference monitor
A video reference monitor, also called a broadcast reference monitor or just reference monitor, is a specialized
newscasts
, showing internal or external feeds.
Common display types for video monitors
- Cathode ray tube
- Liquid crystal display
- Plasma display
- OLED
Common monitoring formats for security
Broadcast reference monitor
Broadcast reference monitors must be used for video
dynamic contrast. However, display technologies with fixed pixel structures (e.g. LCD, plasma) must perform image scaling when displaying SD signals as the signal contains non-square pixels while the display has square pixels.[4] LCDs and plasmas are also inherently progressive displays and may need to perform deinterlacing on interlaced video
signals.
Some professional video broadcast monitors display information on screen such as the current video signal format they might be receiving i.e.:
action safe
.
Common monitoring formats for broadcasters
- Component video
- Composite video
- Serial Digital Interface(SDI, as SD-SDI or HD-SDI)
Features
Professional video monitors have various features that consumer monitors lack such as:
- Conforms to colorimetry standards such as the SMPTE C, Rec. 709, or EBU primaries.
- SDIinputs / outputs.
- AES/EBUAudio decoding.
- Genlock input.
- GPIinterface – for receiving external triggers.
- Modular expansion card slots that support HD-SDI single link or dual-link HD-SDIcards.
- Safe area cage.
- Rack mountable.
See also
References
- ^ EBU - User requirements for Video Monitors in Television Production
- ^ Broadcast Engineering - Broadcast monitors Archived 2008-05-19 at the Wayback Machine
- ^ IEEE Xplore 2.0 - Psycho-physical method of television picture quality evaluation (EBU-II)
- ^ Chan, Glenn (2008). "Scaling artifacts and resolution". Broadcast Reference Monitors. Retrieved 2008-10-01. [dead link]