1. History of Audio By. Tye Shelton

2. 1877 Thomas Edison recovers Mary Had a Little Lamb from a sheet of tinfoil, wrapped around a spinning cylinder.

3. 1878 First music is put on record: cornetist Jules Levy plays “Yankee Doodle.”

4. 1881 Artist Clement Alder accidently produced a stereo effect using basic microphones and mediocre headphones.

5. 1888 Edison introduces an electric motor-driven phonograph.

6. 1898 Valdamer Paulsen patents his “Telephonograph” with recording his steel magnet wire.

7. 1901 Victor talking company is established founded by Emily Berliner, who starts work on first motion picture film.

8. 1906 Lee Deforest invents the first triode vacuum tube, creating the first electronic signal amplifier.

9. 1910 Enrique Caruso is heard on first live broadcast from Metropolitan area, NYC

10. 1912 Major Edwin F. Armstrong is issued patent on Regenerative circuit, which makes Radio reception possible.

11. 1913 The first “Talking Movie” is demonstrated by Thomas Edison using Kinethophone process.

12. 1917 The scully disk recording lathe is introduced.

13. 1919 The radio corporation of America is founded, (RCA).

14. 1921 The first commercial AM radio broadcast is made KDKA, Pittsburgh, PA.

15. 1925 The first electrically recorded 78 rpm disk appears.

16. 1927 Colombia broadcasting system is formed. (CBS)

17. 1921 The “Blatternphone” is released for use as a magnetic recorded steel device.

18. 1933 The first candoid ribbon micrphone is patented by Dr. Harry F. Olsen of RCA

19. 1944 Walt disney’s Fantasia is released, with eight track stereophonic sound system.

20. 1941 Commercial broadcasting begins in the U.S.

21. 1949 Ampex introduces its model 300 professional sound amplifier.

22. 1956 Les Paul makes first 8 track recording, using the self-sync system.

23. 1961 EMI fails to renew the Blumerlin stereo patent Hello-anybody there?

24. 1961 The Dolby Type A noise system is introduced.

25. 1968 CBS releases Switch-on Bach release Walter (Wendy cross).

26. 1974 D.B Keele introduces the design of “constant- directivity”

27. 1981 Phillips introduces the compact disk (CD).

28. 1986 First digital monitors appear.

29. 1999 Audio DVD standard 1.0 agreed upon by manufactures.

30. Sources http://www.aes.org/aeshc/docs/audio.history. timeline.html http://www.aes.org/aeshc/docs/audio.history. timeline.html http://www.biography.com/people/thomas- edison-9284349 http://www.biography.com/people/thomas- edison-9284349 http://www.aes.org/aeshc/docs/audio.history. timeline.html http://www.aes.org/aeshc/docs/audio.history. timeline.html http://www.biography.com/people/thomas- edison-9284349 http://www.biography.com/people/thomas- edison-9284349