History of audio

Phonograph

Dec 16, 1877

In december of 1877 Thomas Alva Edison create the phonograph.

Electric Phonograph

1888

In 1888 Edison introduces an electric motor-driven phonograph.

Telegraphone

1898

Valdemar Poulsen patents his telegraphone recording magnetically on steel wire.

Triode vacuum tube

1906

Lee DeForest invents the triode vacuum tube, the first electronic signal amplifier.

First live broadcast

1910

Enrico Caruso, an Italian operatic tenor, is hear in the first live broadcast from the Metropolitan Opera, NYC.

RCA

1919

The Radio Corporation of America is founded.

FM broadcast

1939

Major Armstrong, the inventor of FM radio, makes the first experimental FM broadcast.

Fantasia

1940

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

Pocket transistor radios

1954

Sony produces the first pocket transistor radios.

Compact Cassette Tape

1963

Philips introduces the Compact Cassette tape format, and offers licenses worldwide.

Digital tape recording

1975

Digital tape recording begins to take hold in professional audio studios.

CD

1981

Philips demonstrates the Compact Disc (CD)

CD Player

1982

Sony released the first CD player.

QuickTime

1991

Apple debuts the "QuickTime" multimedia format.

DVD

1997

DVD videoclips and players are introduced to the market.

Now

2017

The audio has evolved and has adapted to all the electronic devices of our time like cell phones, computers, stereos, cars, etc., and achieves incredible effects in the movies and in the theater.