Recording Technology History
1877 - Edison made the first recording of a human voice ("Mary had a little lamb") on the first tinfoil cylinder phonograph Dec. 6 (the word "Halloo" may have been recorded in July on an early paper model derived from his 1876 telegraph repeater) and filed for an American patent Dec. 24. John Kruesi built this first practical machine Dec. 1-6 from a sketch given to him by Edison that was made Nov. 29 (not on "Aug. 12" that Edison mistakenly wrote on another sketch in 1917). When Kruesi heard Edison's first words Dec. 6, he exclaimed "Gott in Himmel!" (but these words for "God in Heaven" were not recorded and thus have been forgotten). Others before Edison had tried to record sound, but Edison and his tinfoil phonograph were the first to succeed.
''This is an in depth study of the history of recording. They start at the beginning and show diagrams and photos to illustrate the early recording techniques from tinfoil to digital.
I love this site as they have clearly produced a detailed study which is well worth while reading even if your not interested in becoming an engineer yourself.
It only takes a short while to read so please enlighten yourself and follow their link history.sandiego.edu'' liamssoft