Audio Timeline By: Alyssa Martin

In 1877 Thomas Edison was working in his lab, succeeds in recovering Mary's Little Lamb from a strip of tinfoil wrapped around a spinning cylinder. He demonstrates his invention in the offices of Scientific American, and the phonograph was created.

1895 Marconi achieves wireless radio transmission from Italy to America. history-of-audio-engineering-infographic/

Enrico Caruso is heard in the first live broadcast from the Metropolitan Opera, NYC. engineering-infographic/

1912 Major Edwin F. Armstrong is issued a patent for a regenerative circuit, making radio reception practical. ml

1913 The first "talking movie" is demonstrated by Edison using his Kinetophone process, a cylinder player mechanically synchronized to a film projector. meline.html

1916 A patent for the superheterodyne circuit is issued to Armstrong. The Society of Motion Picture Engineers is formed. Edison does live-versus-recorded demonstrations in Carnegie Hall, NYC.

1917 The Scully disk recording lathe is introduced. E. C. Wente of Bell Telephone Laboratories publishes a paper in Physical Review describing a "uniformly sensitive instrument for the absolute measurement of sound intensity" -- the condenser microphone.

1921 The first commercial AM radio broadcast is made by KDKA, Pittsburgh PA.

1932 The first cardioid ribbon microphone is patented by Dr. Harry F. Olson of RCA, using a field coil instead of a permanent magnet.

1940 Walt Disney's "Fantasia" is released, with eight-track stereophonic sound.

1941 commercial FM broadcasting begins in the U.S.

1947 colonel Richard Ranger begins to manufacture his version of Magnetophon.

1948 AES is formed in NYC.

1956 Les Paul makes the first 8 track recording using the “Sel- Sync” method.

1967 Elektra releases the first electronic music recording.

1980 Sony and Shuder each introduce a mulititrack digital recorder.

1981 Philips demonstrates the CD.

1991 the first affordable digital mulititrack recorder.

1997 Video disk and players are introduced.

1999 Audio DVD standard 1.0 is agreed upon by manufactures.