Monday, 11 November 2013

composed video (analogue)


analogue transmissions can carry standard definition (480i or 576i signal) use of standerd formats such as ntsc, pal, and secam however the cable can only carry  one signal unlike s-video that can carry multiple videos. this cable can only carry the image.

s-video (anolog)

analogue cable caring standerd definition (480i and 576i) it separates black and white couler signals to achieve better images than composite however it has a lower resolution than component video. each pin has a different ground pin the fith bottom pin is used for holding the cable in place

component video (analogue)

the rgb distributes the couler in three ways (red, green, blue) it allows a full HD resolution however due to the nature of digital TV's extra conversion needs to take aplace this created artefacts (edge clarity)  this may be limited to 1080p.







vga (analogue)
vga is typically used for computer monitors and connects to video cards,  HDTV'S , laptops, notebooks and an array of other equipment it uses the same RGB method as a component cable.
it allows higher resolution, ranging from 640x400 all the way up to 2048x1536 
the higher resolution cables usually require coaxial wiring and insulation for higher quality. one of the down sides to vga is does not carry audio.

DVI cable (digital)

Dvi is a digital cable , meaning no loss in quality. it is often found on HDTV,S and video cards. there are three main types of DVI cables (DVA-D, DVI-A and DVI-I) 
the cable comes in single and dual link but dose not contain audeo. its resolution is up to 3840x2400



HDMI(digital)
HDMI is used on many devices ranging from computers, cameras, monitors, and blu-ray players
it is a single cable that contains audeo and video. it dose not loose any signal. vershion 1.0 allwed for 1920x1080p
vershin 1.4 supports 3d and 3840x2160p 
vershion 2.0 supports 3840x2160p at 30fps vershion 2.0 is the same as 1.4 only with 60fps 


RCA connector (analogue)
RAC cables are used to carry video and audio signals primarily used for stereo equiptment, often consumer grade. it is mainly audeo but it also has video the red and white cable are both audeo and the yellow cable is for video. it is used with different peices of technology like playstation, xbox and dvd players.





1/4 jack and 1/8 jack (30 mm) (phone connecter-analogue)

3.5mm is found on phones, dslr's (these cables are intended for short runs)
1/4 jack is used for audeo recording equiptment, stereo equiptment, guitar and bass leads


xlr connector (digital)
this is the most common cables for microphones. it has three pins in one and is connected to the other end . it is ballenced on a 3.5mm or 1/4mm jack 
the femail is usuly the sorce, male is the imput due to the desine the microphone wont disconect on its own accord.








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