Processing amplifier

Processing amplifier, commonly called ProcAmp, is used to alter, change or clean video or audio signal components or parameters in real time [ [http://www.kramerelectronics.com/glossary.asp?frm_term=Processing%20Amplifier%20(procamp) Kramer Electronics - Audio/Video Glossary - Processing Amplifier (procamp)] ] .

Form factor

Broadcast professionals prefer to use hardware rack mountable ProcAmps that helps them make video broadcast safe by correcting video inconsistencies. They may also be chip based, part of other larger multi-purpose devices in professional environments.

Software ProcAmps are also available, as code thats embedded in media players like VLC, encoders or decoders like ffdshow that process video, either on the CPU or GPU [ [http://msdn.microsoft.com/en-us/library/ms799523.aspx Microsoft MSDN - Windows Driver Kit: Display Devices - ProcAmp Control Processing] ] .

Video ProcAmp

Video ProcAmps can be used for processing standard definition 525/30 (NTSC) 625/25 (Pal) or high definition video signals [ [http://www.videouniversity.com/engineer.htm VideoUniversity.com - Engineering Primer] ] . ProcAmps can process video signals ranging from analog composite to SDI video signals.

Common ProcAmp Controls:

* Brightness (Luminance)
* Contrast (Gain)
* Saturation (Amplitude)
* Hue (Phase)

Common ProcAmp features:

* Adjust sync amplitude
* Boost low light level video
* Reduce video wash out
* Chroma clipping

Audio ProcAmp

See also

* Video processing
* Broadcast-safe

External links

* [http://www.ee.surrey.ac.uk/Contrib/WorldTV/broadcast.html More information about TV standards]

References