Today, listening to music on compact disks and audio tapes is no novelty. Did we however think how the music got there? Recording music involves the storing of performances for later listening. This is what the musical bands and great singers do. Then, record labels like virgin records and Sony convert them into high quality tapes or cd’s for our pleasure in cars or where ever we go.
The first recording principal came about through a Swiss watch maker in 1796 when he proposed the first musical box. Then came the phonograph in 1877 by Edison. He constructed a cylinder with soft material like led or tinfoil. A stylus drew grooves across this material and through the depth of the grooves and calculated air pressure the recording was determined.
In 1896 however, Valdemar Poulsen demonstrated magnetic recording. In this process of recording sound, a tape is kept moving under a recording head. The head transfers electronic signals corresponding to the sound on to the tape. The play back head then re reads these tapes and recognizes the signals hence playing them back.
Magnetic recordings were however not popular and were inefficient in the beginning. People...
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