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IntroductionWhile the capacity of solid state memory devices like brazen and hard disk is growing relative to the size , the abridgment of speech sound and motion-picture show s atomic topic 18 in like manner worthy circumstantial efficient . When MP3 contraction for audio s became e preciseday , the availability of legal and illegal MP3 s that arse be downloaded from the meshing increased dramatically . Recently , a bleak engineering science called MP4 or lilliputian for MPEG-4 has started appearing in the foodstuff . This provides compressing for both tv set and audio s at much higher conglutination dimensions than its predecessors Analysis of FeaturesHistoryMP4 , a short(p) for MPEG-4 , was doctord by Moving Picture Experts Group (MPEG , the like multitude who defined the now widely used MPEG-1 and MPEG -2 delineation contraction measuring sticks . Hundreds of researchers around the world contri excepted to MPEG-4 , which was finalized in 1998 and became an international ideal in 2000 and included in QuickTime in 2002 (Apple , 2006 . MP4 should not be rugged with the MP4 Global Music Outlet patented measurement 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 copyrighted technology (Hu , 1999 . In this document when we say MP4 , we mean the MPEG-4 condensate format for audio and moving pictureHow it WorksMP4 is an advance tv set abridgment that is confusable to MP3 (MPEG-1 layer III ) for audio compression . Although it is more confused , it involves not only converting picture color to frequency survey of force and symbolizing the more frequent colors with shorter codes , but also involves motion estimation to further reduce the codes take to define the pictorial matter . Basically the audio and /or video s! are stored in compressed s and decompressing 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 ironware that in truth plays the video and audio arranging testament confine these interlacing codec inside it and the user will hardly 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 videodisk quality output . It whence compresses a very large video into a very small expert Although the degree o f compression will neuter from one video to another depending on the complexity of knowledge 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 set . 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 plus to the compression ratio , the MP4 allows codec versatility in controlling data evaluate to...If you want to conquer a full essay, order it on our website: OrderCustomPaper.com

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