Initially computers recorded the songs known as wav. This format does not have any compression, later we will explain what we mean by the well-known word compression.
we said that when using the wav format, computers a large part of their hard drives to be able to store even if it were a few songs especially if we remember times were very small which equation that each song a very large space time the computers had very little capacity hard of storage we found computer could store only a few songs.
but very soon this began to bother users because although the computer was perfectly capable of playing Sony record good quality on the impractical facts to listen to music because of the low storage capacity the large size each song.
and now we will get into the subject of compression, it is based on algorithms to reduce each song without losing much quality. It is obvious when compressing one gets rid of certain information, for example redundant information, that is, information is repeated and that therefore one can do without it without losing quality because important information is not being lost.
Thus, MP3 format arises, which bases its compression to eliminate information that is not audible for the human ear, therefore getting rid of that information is not perceptible to the human ear, so the song will sound the same compressed as uncompressed. It is the reason why MP3 format was immediately successful because it records songs the tenth part of space on the computer disk and yet they will sound practically the same, which even allowed one of these files to be sent to another user on another computer MP3 which would have been impossible to do practically with the wav format given the enormous space that each song occupied.
Obviously this generated that fashion will soon begin exchanging song files the world which came to change completely in which the music industry works and worked.
