By:Frucisierre Hoffman

1. History of Audio By:Frucisierre Hoffman

2. What is audio? Definitions of audio …. • Of or relating to humanly audible sound. • Of or relating to the broadcasting, reproduction, or reception of sound. • Of or relating to sound or hearing audio frequency. • (Electronics) relating to or employed in the transmission, reception, or reproduction of sound.

3. What is sound? • Definitions of sound…. • Transmitted vibrations of any frequency. • The sensation stimulated in the organs of hearing by such vibrations in the air or other medium.

4. Audio and Sound • Sound is basically vibrations in the air, • Audio is reproduction, or reception of sound. • So you have to hear sound to be able to recognize audio.(So you cant be deaf, but I'm pretty sure deaf people find away to enjoy audio, like Beethoven did which was by feeling different vibrations made by different notes and putting them together to make all of his BRILLIANT music.)

5. When was audio discovered? • "Au Clair de la Lune, Pierrot repondit...". Worlds first audio recording ever made on April 9, 1860 (17 years before Thomas Edison's ). The audio recording was a verse of "Au Clair de la Lune", was made by Frenchman Édouard-Léon Scott de Martinville who invented the phonautograph.

6. When was sound discovered? • The first device that could record actual sounds (but could not play them back—the purpose was only visual study) was the phonautograph, made in 1857 by Parisian inventor Édouard-Léon Scott de Martinville.. The first device that could record actual sounds (but could not play them back—the purpose was only visual study) was the phonautograph, made in 1857 by Parisian inventor Édouard-Léon Scott de Martinville..

7. 1857 • In 1857, Édouard-Léon Scott de Martinville invented the phonautograph, the first device that could record sound waves as they passed through the air.

8. 1877 • In 1877 another inventor, Charles Cros, said that the process could be reversed by using photoengraving to convert the traced line into a groove that would guide the stylus, and sent back into the air as sound.

9. 1878 • The music is first put on record: cornetist Jules Levy plays "Yankee Doodle."

10. 1881 • Clement Ader, using carbon microphones and armature headphones, accidentally makes a stereo effect when listeners outside the hall monitor connect telephone lines connected to stage mikes at the Paris Opera.

11. 1887 • An inventor from America soon saw that idea, and in 1887 that yet another inventor, Emile Berliner, actually photoengraved a phonautograph recording into metal and played it back.

12. 1888 • Edison invents a electric motor-driven phonograph.

13. 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.

14. 1898 • Valdemar Poulsen markets his "Telegraphone," which records audio magnetically on steel wire.

15. 1900 • Poulsen shows his invention to the public at the Paris Exposition. Austria's Emperor Franz Josef records his congratulations.

16. 1901 • The Victor Talking Machine Company is founded by Emile Berliner and Eldridge Johnson. • Experimental recordings are made on motion picture film.

17. 1906 • Lee DeForest invents the triode vacuum tube, the first electronic signal amplifier.

18. 1913 • The first "talking movie" is showed by Thomas Edison using his Kinetophone process, a cylinder player mechanically synchronized to a film projector.

19. 1878- 1916 • The Dictaphone was basically wax cylinders for voice recording made the Volta Laboratory and established by Alexander Graham Bell in Washington, D.C.

20. 1934-1935 • The world's first tape recorder built and used for broadcasting. He later made the first consumer tape recorder called the Sound Mirror.

21. 1931 • William Schergens created the first answering machine.

22. 1939 • Engineers in Germany, Japan and the U.S. discover and develop AC biasing for magnetic recording.

23. 1948 • Magnecord introduces its PT-6, the first tape recorder in portable cases.

24. 1962 • The first compact audio-cassette was invented and released by the Philips Company .It recorded and played back audio at a speed of 1.7/8 inches per second.(not really called-for…)

25. 1963 • Philips introduces the Compact Cassette tape, and offers licenses worldwide.

26. 1964 • Stereo 8 (also calledeight-track cartridge, eight-track tape, or eight-track) was created by Bill Lear along with Ampex, Ford Motor Company, General Motors, Motorola, and RC Victor Records.

27. 1975 • Michael Gerzon builds the Sound Field microphone.

28. 1979 • Philips demonstrated a prototype of a readable CD-ROM for computers.

29. 1994 • At the age of 13, Garrett recorded two CDs.

30. CREDITS • http://www.thefreedictionary.com/audio • http://en.wikipedia.org/wiki/Sound_recording_and_reproduction • http://www.youtube.com/watch?v=s0fhEpxrFvo • http://en.wikipedia.org/wiki/History_of_sound_recording • http://www.google.com/search?num=10&hl=en&site=imghp&tbm=isch&source=hp&biw=1024&bih=571&oq=phonautograph+&gs_l=img.12..0j0i24l9.2625.2625.0.3453.1.1.0.0.0.0.47.47.1.1.0...0.0...1ac.NJ5teGj00_U&surl=1&safe=active&q=phonautograph&tbo=d • http://www.aes.org/aeshc/docs/audio.history.timeline.html • http://www.videointerchange.com/audio_history.htm • http://en.wikipedia.org/wiki/Dictaphone • http://library.thinkquest.org/19537/Timeline.html • http://inventors.about.com/od/audiowaxrecordstomp3/History_of_Sound_Recoding.htm • http://www.timetoast.com/timelines/history-of-sound-recording • http://en.wikipedia.org/wiki/8-track_tape • http://timerime.com/en/event/376314/First+Music+Put+on+Record+Yankee+Doodle/ • http://en.wikipedia.org/wiki/David_Garrett_(musician) • http://en.wikipedia.org/wiki/Compact_Disc • http://lifestyle.iloveindia.com/lounge/history-of-cd-7416.html • http://www.recording-history.org/HTML/answertech1.php