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The Basement
Puzzled WHY compressing music damages the sound.,
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<blockquote data-quote="Kevin McDonough" data-source="post: 209390" data-attributes="member: 10402"><p>hey</p><p></p><p>Simply, its because MP3's are designed specifically to BE lossy, to give up information. </p><p></p><p>Yes, it's possible to compress a file without losing any data. The examples you give of FLAC and RAR are such, and they compress the information as much as they can while still keeping the data intact, and then the audio is decompressed back exactly the same as it was when played.</p><p></p><p>However there is only so far that you can go, so much you can compress, while still keeping things lossless. Back in the very early days of transferring music over the internet, people's bandwidth was so small that transferring big lossless files was very impractical at best. The needed a format that was able to discard some information to make the file even smaller, with as little impact as possible to the audio. the original MP3 format used the best known strategies at the time based on psycho-acoustics and how your brain perceives audio to discard some of the audio while still keeping it as close to listenable and unnoticeable as possible (depending on exactly what bitrate etc you chose etc of course).</p></blockquote><p></p>
[QUOTE="Kevin McDonough, post: 209390, member: 10402"] hey Simply, its because MP3's are designed specifically to BE lossy, to give up information. Yes, it's possible to compress a file without losing any data. The examples you give of FLAC and RAR are such, and they compress the information as much as they can while still keeping the data intact, and then the audio is decompressed back exactly the same as it was when played. However there is only so far that you can go, so much you can compress, while still keeping things lossless. Back in the very early days of transferring music over the internet, people's bandwidth was so small that transferring big lossless files was very impractical at best. The needed a format that was able to discard some information to make the file even smaller, with as little impact as possible to the audio. the original MP3 format used the best known strategies at the time based on psycho-acoustics and how your brain perceives audio to discard some of the audio while still keeping it as close to listenable and unnoticeable as possible (depending on exactly what bitrate etc you chose etc of course). [/QUOTE]
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