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Digital video technology


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Digital video technology

  1. 1. Film TrailersThe purpose of a film trailer is to give a taster for what the film will be like, usually theyshow the most gripping parts of the film for example, if it is an action film, the trailer wouldgenerally be showing the parts with the most excitement to make you, as the viewer wantto see it even more. Film trailers have been around for almost a century now as the firstone was released in 1913 and they have adapted a lot since they originally came out, at thevery beginning, the objective of a film trailer was to tantalize the viewers and make themwant to watch the film, which is still the principle today, but the main thing that had to bedone in the early 19th century was just to get certain parts of the film and put some textwith them and that was the mind set back then on ‘gripping the viewer’. Whereas nowa-days with the new editing and technology, films and their trailers have been dramaticallyupdated.Music is an extremely key factor in film trailers, it sums up the entire trailer, watching onewith the sound muted would be boring and wouldn’t interest you in the slightest but whenit is turned on and synched with the editing of the clips, it really enhances the overalltrailer and pulls you closer to wanting to watch it. Depending on the type of film, it is eitherdramatic and tense music, or upbeat dance music for when it is to do with something elselike street-dancing or car films. As time progressed, directors of the films realised thatthere was much more that could be done to entice the viewer, for example, in the 1960’steaser trailers were introduced which was usually a stand still imagine with a slogan andthe title of the film, not giving to much information away but just enough to make youwant to watch the full trailer.A good example of a fantastic film trailer is the 2012 film ‘The Avengers’. It shows greatfootage from some of the clips with some dramatic music in the background to make iteven more intense. It has small bits of text to illustrate when the film will be released andhow anticipated the film has been. Release Clip from date film
  2. 2. WWW: The World Wide WebThe World Wide Web is one of the greatest releases in history, we take for granted howamazing it really is. It has near enough anything you would ever want to know about anytopic. The WWW is near enough the dictionary of life, having anything and everything youwant to find or know about using internet search providers like ‘Google’ which has becomethe most popular source for information and pretty much anything you want. You can listento endless streams of music and watch videos / movies through it. You don’t have to use abog standard computer to access the internet, you can gain access to it from severaldifferent places and devices nowadays. Most mobile phones produced in the last decadehave the option on the internet as you wish, as long as you have an internet connection (inrange of a router/modem). Even then, phones like blackberries and iPhones have their owntype of connections which allows them to connect to the internet whenever they choose,as it is a type of Wi-Fi. A huge benefit of using the internet is the endless shoppingavailable to you. You can the WWW to browse through your favourite shops or browse theweb to find the cheapest deals on a specific item you are looking for without having tomove out of your house. Sites like ‘Amazon’ are great examples of this. Amazon hasproducts of all varieties and has them for fantastic prices as well as shipping globally. Savesso much travelling to go out and see the shops in a shopping centre you can vieweverything with the touch of a mouse. Another great advantage about the internet is socialnetworking. You can connect and talk with near enough anyone in the world nowadaysfrom wherever you are using sites like ‘Facebook’ and ‘Twitter’. The WWW allows you tobypass using phones or going out to see people, as you can communicate and talk to eachother from anywhere. The internet saves a lot of travelling, especially for things likebooking tickets for holidays or trains. You can just go to the website of the company youare buying from and do It manually from there, instead of you having to go out andpurchase them in person. The World Wide Web has unlimited entertainment for you asyou browse through sites with knowledge on your favourite celebrities or download yourbest films for free to watch in brilliant HD quality. Lots of people could not imagine lifewithout the internet as they grew up with it, but as a summary, it makes almost everyaspect of your social life and work much more interesting and easier for informationgrinding and talking to friends.
  3. 3. Mobile PhonesMobile phones are a huge part of everybody’s life in this day and age, most people ownone and if they do not, they most certainly know someone who does. Modern mobileshave just about anything you would need in your everyday life such as calendars, quickSMS texting, access to the internet and the new phones even have the ability to downloadapps from a store for even more enhanced mobile capabilities, like the ‘Whatsapp’ whichgives you the ability to send pictures freely to your contacts over an application bypassingthe payment option of doing it through a normal text and overall gives you a much moreenjoyable way of talking to your friends and family. The first recognised mobile phoneswere implemented in the 1940’s and they were huge, bulky phones which had a very lowbattery life and only allowed a certain amount of calls for a period of time. As technologyhas evolved since this time, so have mobile phones and they have been modernized a lot.Mobile phones as of the year 2000 and onwards, have been fitted with technology we alltake for granted when we use them. You can call people from wherever you are weather itbe home / mobile or work. There is near enough unlimited accessibility to the internetwhere you can go on any website and act as if you were on a computer with the open websurfing available to you as you please watching films and streaming videos as you please,and there is texting, texting is a massive contributory factor to why people have mobilephones, it is another method of communication except you type instead of speak. Mostpeople text and do it more than 10-15 times a day without even realising. Phones releasedin the past 5 years are the phones of today such as Blackberries, Smartphones andiPhones. They all have something unique that phones released prior to this didn’t haveanything like it. Blackberries have the well known Blackberry Messenger which is the sameas texting but much quicker and has little things added to it to make it faster and moreenjoyable. Such as you can see when people have seen your message, and when they arereplying. You can have profile pictures and write about yourself so in sense it isn’t justtexting, it is a little social networking application and the majority of people who buyBlackberries buy them specifically for BBM as of how useful and fun it is. iPhones andSmartphones are similar, they can have endless pages of apps and have just abouteverything you need for what a mobile phone can do for you. Mobile phones will adapt tothe new technology and evolve with what is introduced in the coming years but it certainlyhas come a long way since the 1940’s.
  4. 4. User Generated ContentUser generated content is usually referred to websites and information put onto them.Most websites nowadays are commonly designed and formatted by businesses usingprofessionals to design them. Whereas the idea of ‘user generated’ implies that somethingis designed and produced by the ‘user’. Which is exactly what it is, when something isdone using ‘user generated content’ it means that a website or a form of media has beenproduced by a normal person who isn’t particularly the most experienced nor professionaland even amateur. Another definition of this term, is if somebody who doesn’t necessarilyhave the highest standard of qualifications came out of education but still wanted to dosomething through technology, they can, the main idea behind user generated content isthat anybody with the intellectual knowledge capable to make websites and forms ofmedia, can do it regardless of their educational background.Some of the most popular websites around the web are in fact, user generated. One of themain ones is ‘Wikipedia’. On here, anybody with sufficient expertise can edit the site to putInformation from their own knowledge to change the definition or explanation of a certainterm or word. This is a site where everybody can work together in order to create an onlineencyclopaedia completely designed and daily modified by the general public. The thingthat makes Wikipedia special from most other UGC websites is that there is no author thatgets paid for people editing the site, in contrast with sites which stream music and othertypes of media which commonly have advertisements through out your time on the web-site, and for every one that you view, it sends money to the author of the site / the stream-er.Social networking sites like ‘Facebook’, ‘Twitter’ and even the super popular ‘YouTube’ areall also great examples of user generated content, as with the social networking sites, youcan upload your own photos, videos and even put your own status on to tell others howyou’re feeling. As you are doing it all yourself, it is all user generated. As for ‘YouTube’ youcan view, upload and share videos. There is even an option to share them on the sitesmentioned previously as they are all so popular on the web. More and more sites arebecoming user generated as time goes on, there are people every day designing andediting websites. User generation is for nominally popular and will continue to evolve foryears to come.
  5. 5. Digital File FormatsDigital image formats is the computerized way of organizing and storing digital images ontodepending on which program / device you were using. Image files, like the ones you saveand use every day, are made up of digital data in one of the many formats available thancan then be rasterized for use on your computer screen.If you pay attention to the type of format on the end of a digital image you may have savedon your computer for example, jpg or png, they all have their separate and individualmeanings for how big the file might be or what program the image was taken / designedon and they all have a purpose.JPEG standing for “Joint Photographic Experts Group” or more commonly known as JPG, isone of, if not the most common file type for digital photos and other digital graphics. JPG isalso the most common file type for images taken with digital cameras and is regularly usedfor graphics on websites like blogs and even social networking sites such as Twitter andFacebook. The reason why JPG images are so good at what they do is because, unlike GIFfiles, which show significant loss in photo image quality, JPG images can have file sizereduction without losing enough quality to make it look distorted or unclear.A PNG file meaning “Portable Networks Graphics” is a type of bitmapped image formatwhich was originally created to improve and replace the previous GIF file type as an imagefile format which does not require a patent in order to be used. There are hundreds ofdigital file formats varying throughout the alphabet as there are thousands of programsthat use different ones.MOV is a type of video file and a common multimedia format often used for saving moviesand other video files. QuickTime use MOV files as it is a media company popular for itsQuickTime Media Player. An MOV video file functions as a multimedia container file thatcontains one or more tracks, each of which stores a particular type of date which could beaudio, video, effects or text like subtitles.
  6. 6. Digital Rights Management System:The digital rights management system (DRM) was originally intended to be a type oftechnological control that is commonly used by hardware manufacturers, online publishersand any individual with the aim of limiting the used of digital content after a product issold. DRM can be any type of technology that possesses uses of digital content that are notwanted or required by the content provider.Major companies like Amazon and Apple Inc., use the digital rights management system asthey are such big and popular companies that they need the protection. DRM was firstimplemented in 1998 in the United States when the Digital Millennium Copyright Act(DMCA) was passed. The main intention from this was to impose penalties on people whomake technologies whose main function is to bypass content protection technologies. Thegeneral and primary objective of the DRM when it was first introduced was to act as a formof protection for companies to combat copyright issues over the internet. Some argue thatthe DRM is only there to inconvenience legitimate customers. A lot of people think thatindustry supporters of DRM introduced this so that we could not have total control overout media and devices that we normally would, as a result of this, the other common termfor DRM is digital restrictions management as it is believed to be a way of companiespreventing you from fully owning your media. The true definition of digital restrictionsmanagement is basically, where technology controlling what you can do with the digitalmedia that you own. For example, if a program doesn’t let you share a song or play aninternet game as you don’t have an internet connection, this is you being restricted byDRM, in other words, it is a damaging good preventing you from doing what is rightlyyours, and consequently this is creating a dangerous future for freedom, privacy andcensorship.
  7. 7. Aspect Ratios 4:3 and 16:9The aspect ratio of an image describes the proportional relationship between its width andits height. Commonly, the ratio is expressed as two numbers. The two most popular being4:3 and 16:9.The aspect ratio 4:3 is used by most digital cameras. 4:3 digital format popularity wasdeveloped originally to match the prevailing digital 4:3 computer monitors but nowadaysthey are used for other aspects of technology. The 4:3 aspect ratio has been around sincethe early days of television in the 1940s and 1950s. A television that has an aspect ratio of4:3 is often referred to as being NTSC, or pan and scan. The majority of analog cablechannels still broadcast in 4:3.The 16:9 ratio, is another format that has its roots in the APS film camera. The 16:9 ratio isalso the standard image aspect ratio for HDTV. It is gaining popularity as a format in allclasses of consumer still cameras which also shoot high definition. When still cameras havea HD video capability, some can also record stills in the 16:9 format, ideal for HD televisionsand the majority of widescreen computer displays. The 16:9 aspect ratio is a product ofmovie producers. They wanted to find a way to make their movies bigger and better inorder to attract more customers. The widescreen format of the 16:9 aspect ratio allowsusers to view a bigger picture when compared to the 4:3 aspect ratio. The 16:9 aspect ratioalso enhances the quality of the image by allowing for bolder backdrops and scenery. The16:9 aspect ratio is not as wide as what you would see in a cinema, but it is close.
  8. 8. Media PlayersA media player is a term used to describe computer software for playing back multimediafiles. While many media players can play both audio and video, others focus only on onemedia type of the other. These are defined into either audio players or video players andoften have a user interface tailored for the specific media type used.The most common media players on computers nowadays are windows media player andQuickTime, and RealMediaPlayer. Apple Inc., uses QuickTime as their media player whenthe user wants to playback music or a video purchased through iTunes. Windows mediaplayer is the otherwise known as the default media player. The reason for this is becauseevery single computer powered by windows regardless of weather it is vista, 7 or even 96,windows media player comes as standard with the computer and therefore it is the pro-gram people are the most used to and comfortable with.Another extremely popular media player is the Adobe flash player originally created byMacromedia and now developed and distributed by Adobe Systems. This is another type ofsoftware used for viewing multimedia and streaming videos / audio. You can use this on aweb browser or on supported mobile devices. Again, like windows media player, it is verycommon to have this program installed on your computer as standard when purchased, ordownloaded not long after.DivX, is a brand name of products created by DivX Inc., including Macrovision whichbecame very popular due to its ability to compress lengthy video segments into small sizeswhile maintaining relatively high visual quality. Similar to the other media players I havementioned, DivX is another form of software used to playback audio or watch video clips.Except with this program, you can use it as an editing tool for saved media clips for use inother things as it has programs available to you which allow you to cut or add effects toclips as well as having multiple audio tracks on the go at once.