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Audio Timeline

This timeline chronicles significant milestones in audio technology, beginning with Jules Levy's 1878 recording of "Yankee Doodle". It highlights key innovations such as Emile Berliner's patent for the gramophone in 1887, the invention of the triode vacuum tube by Lee DeForest in 1906, the emergence of AM radio broadcasts in 1921, and the introduction of the long-play vinyl record in 1948. The progress continues through advancements like quadraphonic decoders in 1972 and enhanced CDs in 1996, showcasing the evolution of audio from basic recordings to modern digital formats.

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Audio Timeline

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  1. Audio Timeline BY; Faith Moye 2nd period

  2. www.aes.org • 1878- The first music is put on record: Jules Levy plays "Yankee Doodle” • 1887 -Emile Berliner is granted a patent on a flat-disc gramophone, making the production of multiple copies • 1895 -Marconi successfully experiments with his wireless telegraphy system in Italy, leading to the first transatlantic signals from Poldhu • 1906 -Lee DeForest invents the triode vacuum tube, the first electronic signal amplifier. • 1913 -The first "talking movie"

  3. www.aes.org • 1919 -The Radio Corporation of America is founded • 1921 -The first commercial AM radio broadcast’s • 1925 -The first electrically recorded 78 rpm disks appear. • 1927-as the first commercial talking picture, using Vita phone sound on disks • 1929-sampling theorem basic to all digital audio processing • 1932 -The first cardioids ribbon microphone • 1936 -BASF makes the first tape recording

  4. www.aes.org • 1938 -first column loudspeaker array • 1939-Western Electric designs the first motional feedback, vertical-cut disk recording head • 1940- Walt Disney's "Fantasia" is released, with eight-track stereophonic sound. • 1944- Alexander M. Poniatoff forms Ampex Corporation to make electric motors for the military. • 1947 -Ampex produces its first tape recorder, the Model 200 • 1948 -The microgroove 33-1/3 rpm long-play vinyl record is introduced by Columbia Records

  5. www,aes.org • 1954-Model 600 portable tape recorder • 1961 -3M introduces the first 2-track closed-loop capstan-drive recorder, the M-23. • 1972 -Electro-Voice and CBS are made by Peter Schreiber to produce quadraphonic decoders using his patented matrixes. • 1996 -Record labels begin to add multimedia files to new releases, calling them "enhanced CDs

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