April 2001
MP3 Software
How MP3 software works.
By Technology Review
A funny thing happens when we listen to music. We don't hear it all. Of the complex acoustical mix that seduces our ears when a song plays, we're capable of discerning only the most dominant qualities. If two similar frequencies are playing at the same time, for example, we detect the louder one; if a soft sound follows a louder one, it can take up to a tenth of a second for us to hear the subtler tone.
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Massachusetts Institute of Technology