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If your MP3s sound like shit, you're doing something wrong (idea) by -brazil- (1.2 mon) (print) ? 1 C! Tue May 15 2001 at 3:50:09 Many people will claim that MP3s sound like shit. They are wrong. Either they only listen to MP3s made with shitty encoders and at too-low bitrates (which is the majority), or they are fanatical audiophiles for whom music recording technology is something religious and who will never let facts get in the way of their dogma. The German c't magazine once did a really thorough test on this. They asked for applications from people who thought that they had perfect hearing, chose those who got good results in preliminary tests and rented a really, really expensive sound studio. Test subjects were given MP3 and CD sound on different channels and could switch between them freely. Their results: At 128kbps, most of the test subjects were able to tell MP3 and CD apart with considerable consistency, but far from 100%. This varied strongly with the type of music. Jazz seemed to be most vulnerable to compression artifacts. At 256kbps, most of the test subjects could not anymore tell MP3 and CD sound apart with significant certainty. A few still could. Amusingly, one of them consistently percieved the MP3 sound as having better quality! The test subject with the highest rate of correct classification was a blind person who worked with music professionally, and he said he didn't expect MP3 to do so well. The bottomline: MP3 is not perfect, but far better than its reputation. Use the Fraunhofer codec or a recent version of LAME or Xing. Use VBR and joint stereo. Encode at more than 128kbps. |
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That was very interesting actually. Although I could swear the difference that I hear (even at some highter bit rates) is more than placebo. |
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