MP3

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INTRODUCTION

Two years ago, MP3 was just another audio compression format. Today, it's a Net phenomenon that's at the center of an enormous controversy. That's because MP3 makes it possible for people with an Internet connection to bypass record stores (and cashiers) and download CD-quality music by their favorite artists--for free. MP3 is great for music lovers and cheapskates, who can download funky tunes to their hearts' content without spending a dime; however, it's a nightmare for musicians and record companies, who can only watch helplessly as their profits drop into a digital black hole.
DEFINITION
MP3 is short for MPEG-1 Layer 3 (Moving Pictures Expert Group), a format for storing digital audio. It uses an advanced type of audio compression which reduces the filesize with little reduction in quality. MP3 is used particularly for music distribution over the Internet, but is also use for other purposes such as real-time digital audio transmissions over ISDN (used by reporters). MPEG-1 has been around since 1992, but during he last few years (1998/99) it has started to get widespread attention from regular media and ordinary users.
An MP3 file (or simply "an MP3") is a file that contains MP3-compressed sound data. It is played using an MP3 player. You can recognize MP3 files by their file-extension (the end of the filename), which is ".mp3".
AUTHORS
MP3 was invented by Fraunhofer IIS – leading organization of applied research in Germany In a joint cooperation with the University of Erlangen (Prof. Dieter Seitzer) under the sponsorship of the Motion Picture Experts Group (MPEG) and formalized by the International Organization for Standardization (ISO).
SOUND QUALITY
The original 50 MB wave file (about 5 minutes of CD quality audio)
MP3-compressed will end up as an MP3 file using only about 5 megabytes of space with little or no audible loss in quality. The size depends on the length of the song and the bitrate (quality). The data is automatically decompressed while the MP3 is being played.
How is it possible to do this you ask? Well, I won't get into the technical details, but basically the MP3 encoder removes the parts of the sound not audible to the human ear. This means that MP3 is a 'lossy' type of compression (comparable to JPEG in the graphics area). This means that what comes out from your CD or Wave file is NOT the same t...

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...tware used for writing.
CD Extracting Software
CD extracting software (normally called a "grabber" or "ripper") is a programme that can extract tracks from an audio CD, making a copy of them on hard disk in wave format. These wave files are the starting point for creating Mp3 files, which are much smaller in size; in fact many rippers feature an MP3 converter and can obtain an MP3 file from an audio CD, going through the wave format which is then automatically deleted in order to free up space.
Utility Programmes
This is software that carries out accessory operations, with no direct effect, but with the result of simplifying other operations.
Typical examples are: WinZIP (to manage compressed archives), Cool Edit Pro (to manage wave files whilst changing their characteristics or applying sound effects) and Mp3Wolf (useful in the search for MP3 files on the net).
CONCLUSION
As you can see it is Mp3 format can be very useful for end users. It is allow you to store many files of your favorite music on your hard disk and listen them any time you like using many good features of MP3 player .
BIBLIOGRAPHY:
1) www.whatis.com (search for)
2) www.vitaminic.co.uk

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