1. By: Aaron Daniel

2. 1877  Thomas Alva Edison was working in his lab and succeeded in recovering Mary's Little Lamb from a strip of tinfoil wrapped around a spinning cylinder.

3. 1878  The first music is put on record, Jules Levy plays "Yankee Doodle."

4. 1887  Emile Berliner is granted a patent on a flat disc gramophone, from making the production of multiple copies practical.

5. 1888 Introduces a electric motor driven phonograph.

6. 1895  Marconi successfully experiments with his wireless telegraphy system in Italy, leading to the first transatlantic signals from Poldhu, Cornwall, UK to St. John's, Newfoundland in 1901.

7. 1900  Paulsen unveils his invention to the public at the Paris Exposition.

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

9. 1912  Major Edwin F. Armstrong is issued a patent for a regenerative circuit, making radio reception practical.

10. 1916 A patent for the super heterodyne circuit is issued to Armstrong. The Society of Motion Picture Engineers (SMPE) is formed. Edison does live-versus-recorded demonstrations in Carnegie Hall, NYC.

11. 1920  The first commercial AM radio broadcast is made by KDKA.

12. 1926  O'Neill patent iron oxide-coated paper tape.

13. 1927  " The Jazz Singer" is released as the first commercial talking picture, using Vita phone sound on disks synchronized with film.

14. 1928  Dr. Harold Black at Bell Labs applies for a patent on the principle of negative feedback. It is granted nine years later.

15. 1931  The first cardioids ribbon microphone is patented by Dr. Harry F. Olson using a field coil instead of a permanent magnet.

16. 1934  E. W. Kellogg granted patent that described an electrostatic speaker composed of many small sections able to radiate sound with out magnets or cones or baffles.

17. 1940  Walt Disney's "Fantasia" is released, with eight-track stereophonic sound.

18. 1950  They release the 12 inch Columbia format disk.

19. 1958  The first commercial stereo disk recordings appear.

20. 1965 Robert Moog shows elements of his early music "synthesizers."

21. 1977  RCA announced it would sell VHS with 4- hour tapes.

22. 1983  The first DSP produced by Texas Instruments

23. 1984  The first DSP produced by Texas Instruments.

24. 1994  Yamaha unveils the ProMix 01, the first "affordable" digital multitrack console.

25. 1997  The DVDs disk and players are inrtroduced.

26. 1999  Audio DVD Standard 1.0 agreed upon by manufacturers.