Tuesday 19 May 2015

Unit 21 add ons

Terrestrial TV.
Terrestrial television is a type of television broadcasting in which the television signal is transmitted by radio waves to the TV receiver from a terrestrial (Earth based) transmitter, a television station, and received with an antenna. The term is more common inEurope, while in North America it is referred to as broadcast television or sometimes over-the-air television (OTA). The term "terrestrial" is used to distinguish this type from the newer technologies of satellite television (direct broadcast satellite or DBS television), in which the television signal is transmitted to the receiver from an overhead satellite, and cable television, in which the signal is carried to the receiver through a cable.
Terrestrial television was the first technology used for television broadcasting, with the first long-distance public television broadcast from Washington, D.C., on 7 April 1927. The BBC began broadcasting in 1929, and had a regular schedule of television programmes in 1930. However these early experimental systems had insufficient picture quality to attract the public, due to their mechanical scan technology, and television didn't become widespread until after World War 2 with the advent of electronic scantechnology. The television broadcasting business followed the model of radio networks, with local television stations in cities and towns affiliated with television networks, either commercial (in USA) or government-controlled (in Europe), which provided content. Television broadcasts were in black and white until the 1960s, when color television broadcasting began.
Why was it turned off?
Most of the set-top boxes supplied to you with your digital TV connection – whether it’s satellite, terrestrial or cable - include recording facilities, usually called PVR (for personal video recorder) or DVR (for digital video recorder).

TV service providers and retailers typically provide enough detail about the specifications for each set-top box for you to make an informed decision. The easy one to understand is the number of hours of recordings the hard drive inside the box can store. You should also check whether you can watch something else while a programme is being recorded.
But you can only sample the most important element – the interface by which you operate the box/recorder – by actually seeing the box.  
PVR 


A PVR is a versatile TV recording device that stores the programmes you have recorded onto a large internal hard disk drive. Typically they can store hundreds of hours of recordings. 


Freeview is a digital TV service which works through your normal TV aerial
What are the benefits?
Freeview is received via a standard aerial so there are no additional costs.
You can access up to 50 TV channels
You are not tied to a subscription package
Free High Definition services are available*
* A HD box and HD Ready TV is required to watch in high definition. HD service subject to coverage.

Freesat
Freesat is a digital TV service which works through a satellite dish.
What are the benefits?
You can access over 140 TV channels.
You are not tied to a subscription package
Free High Definition services are available**
** A HD box and HD Ready TV is required to watch in high definition. 

Three different editing softwares  


Final Cut Pro is the name given to a series of non-linear video editing software programs - first developed by Macromedia Inc. and later Apple Inc. The most recent version, Final Cut Pro X 10.2, runs on Intel-based Mac OS computers powered by OS X version 10.9 or later. The software allows users to log and transfer video onto a hard drive (internal or external), where it can be edited, processed, and output to a wide variety of formats. A fully rewritten and re-imagined non-linear editor, Final Cut Pro X, was introduced by Apple in 2011, with the last version of the legacy Final Cut Pro being version 7.0.3.   
  

Adobe After Effects is a digital visual effects, motion graphics, and compositing application developed by Adobe Systems and used in the post-production process of filmmaking and television production. Among other things, After Effects can be used for keying, tracking, rotoscoping, compositing and animation. It also functions as a very basic non-linear editor, audio editor and media transcoder. 
  
sony Vegas Pro is a video editing software package for non-linear editing systems (NLE) originally published by Sonic Foundry, now owned and run by Sony Creative Software.Originally developed as an audio editor, it eventually developed into an NLE for video and audio from version 2.0. Vegas features real-time multitrack video and audio editing on unlimited tracks, resolution-independent video sequencing, complex effects and compositing tools, 24-bit/192 kHz audio support, VST and DirectX plug-in effect support, and Dolby Digital surround sound mixing. Up to version 10, Vegas Pro runs on Microsoft Windows XP (32-bit only), Vista and 7 (both 32-bit and 64-bit editions). Version 11 dropped support for Windows XP, and version 12 is 64-bit only. 


What is better HD or Standard Definition?  
HD of High Definition is a term that is most often used to describe TV sets and videos that have higher resolutions compared to the standard. Standard definition TV sets and video are commonly called as 480p, referring to the 480 rows of pixels from top to bottom. HD usually contains 720 or 1080 rows from top to bottom, thus the 720p/1080p designations.

The general objective for HD capable screens and videos is to provide a much finer display than SD. This is very comparable to digital cameras and the need for a greater megapixel count to produce better images. The difference between HD and SD might not be very noticeable when dealing with smaller displays. But once you use a much bigger display, it then becomes apparent that the SD picture tends to be blockier or more pixilated compared to HD. This is because of the need to maintain the same number of pixels no matter how big the screen. Smaller screens have smaller pixels and bigger screens would have bigger pixels that might start getting noticed. A 720p display can be up to 1.5 times bigger than a 480p display while maintaining the same pixel size. 

https://www.youtube.com/watch?v=5TzQBKohiYM



Read more: Difference Between SD and HD | Difference Between | SD vs HD http://www.differencebetween.net/technology/difference-between-sd-and-hd/#ixzz3aZzT5pUC  


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