The process of modifying the amplitude/frequency response in a recording and reproducing system to produce flat overall characteristics, minimize noise or give an artistic effect. Phonograph records are cut with low frequencies attenuated and high frequencies boosted. Playback equalization compensates for this, producing a flat frequency characteristic. Equalization may be used to improve the quality of speech and may even involve removal of certain frequencies.
"The CD's of the older music took me back to a fun and carefree time of life. I enjoyed sharing the songs and stories with my children. Music can be a sort of history lesson. Because many events are marked by a song that stays in your mind. When the music is played a variety of memories return that otherwise might not have been triggered. ..."