Just Give Me the Beans!
hey everybody! i'm about to carry out a little experiment for my studies...
do you know any sites about the audible quality loss of mp3 compressed files? or -even better- scientific publications about this topic?
any hints are welcome. i'll let you know the results, if you want!
Tea Glorious Tea!
I am not sure of any sites---but I do know that you loose audio quality anytime you change the formating of the song. This should be interesting to see....good luck.
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With a simple google search you will find a few comparisons. They are not scientific but detailed enough to see and hear the differences. As a general rule, you will lose high frequency (17 kHz and higher) when you compress to mp3. As most people have high-frequency hearing loss, you may not know the difference. You earbuds/headphones, speakers may not know the difference either.
Music type also is a factor. Classical music with wide dynamic range and instrumental breaks will pick up the "breathing" that is characteristic of compression. With heavy metal, you may not notice it.
5 Cups of Ubuntu
For all things audio related from a scientifically minded perspective refer to
http://www.hydrogenaudio.org
Very, very helpful forums and the wiki is a useful introduction. People there regularly conduct double blind tests on various audio formats. you'll find more help there anyway
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