Originally posted by beatle888
well, ok then, i'll enlighten you. the mp3 format is a unique compression algorithm that scans every note of the song and puts them into a "pile". so lets say one song has 100 C Major notes, the "C Major pile" will contain 100 items in that pile. unless of course song two has 50 C Major notes, then as you can probably guess, the C Major pile would contain 150 items. this happens to the sound frequency as well...thats how the ipod reproduces the sound of the instrument. now the lyrics are a different story...think of the ipod as a huge dictionary...it really has every word used by most rock, rap and country artist...this isnt really that extensive but still impressive. so lets say a song has the word "shotgun" in it, well the ipod will search its "common" dictionary (since this word is use in most genres) and applies the correct frequency to the lyric...then it searches its vocal database made up of ten vocalists...(come to find out that in the popular music industry theres only ten distinct voices...five of which weird al recorded for apple)....and presto, you have your song.
now since all this info is stacked in "piles", all the mp3 format has to do is record how many times a certain number of notes, or what vocal sound to use at a specified frequency....this makes the file size much smaller and you can fit more songs onto a hard drive.
