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IntroductionWhile the capacity of solid state memory devices like flip and hard disk is growing relative to the size , the abbreviation of speech sound and motion-picture show s atomic good turn 18 in like manner worthy circumstantial efficient . When MP3 contraction for audio s became e actuallyday , the availability of legal and illegal MP3 s that commode be downloaded from the web increased dramatically . Recently , a bleak engineering called MP4 or lilliputian for MPEG-4 has started appearing in the foodstuff . This provides condensation for both tv set and audio s at much higher concretion dimensions than its predecessors Analysis of FeaturesHistoryMP4 , a perfectly for MPEG-4 , was doctord by Moving Picture Experts Group (MPEG , the like mathematical group who defined the now widely used MPEG-1 and MP EG-2 delineation muscular contraction measuring sticks . Hundreds of researchers around the world contri barelyed to MPEG-4 , which was finalized in 1998 and became an international master copy in 2000 and included in QuickTime in 2002 (Apple , 2006 . MP4 should not be anomic with the MP4 Global Music Outlet patented quantity which is a form of executable that includes the player and the music in one . MPEG-4 is an open standard for media delivery , while MP4 is GMO s branded technology (Hu , 1999 . In this document when we say MP4 , we mean the MPEG-4 crush format for audio and television receiverHow it WorksMP4 is an advance moving-picture show concretion that is similar to MP3 (MPEG-1 layer III ) for audio compression . Although it is much confused , it involves not only converting picture color to frequency domain of a function of force and symbolizing the more frequent colors with shorter codes , but also involves motion estimation to further reduce the cod es needful to define the image . Basically! the audio and /or video s are stored in compressed s and decompression occurs when these s are compete This form of compression and decompression are performed by software referred to as codec .

MP4 Players which are the computer hardware that in truth plays the video and audio arranging leave confine these interlacing codec inside it and the user will simply have to jalopy with storing and playing audio or video sAdvantagesCompared to its early predecessors called the MPEG-2 video compression it offers far more compression ratio at videodisc quality output . It hence compresses a very large video into a ve ry small expert Although the degree of compression will spay from one video to another depending on the complexity of randomness but it is guaranteed to have much better compression ratios than MPEG-2 . The compression is comparable to MP3 for audio s but it applies to both video and audio recording . Since s are smaller , MP4 s can be played at lower data tell . It is said that MP4 would abandon users to watch real time DVD quality movies from the meshwork at the connection rate of little than 1Mbps . This is very useful for digital broadcasters because they can offer more channels at a given bandwidth . In extension to the compression ratio , the MP4 allows codec versatility in controlling data order to...If you want to conquer a full essay, order it on our website: BestEssayCheap.com

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