2. The Beginning of Audio Technology Edouard-Leon Scott de Martinville On the date of March 25 1857, he received French patent #17,897/31,470 for the phonautograph. The patent on the phonograph was issued on February 19, 1878 The phonograph expanded on the principles of the phonoautograph. Perfected by Thomas Edison in 1878. Thomas Alva Edison He was not, however, able to profit from his invention and spent the remainder of his life as a librarian and bookseller

3. Magnetic tape and Motion Pictures This was first demonstated in 1935, during World War 2. Engineers at AEG, working with the chemical giant IG Farben, created the world's first practical magnetic tape recorder, the 'K1', AEG, Founded in 1883, as an Electrical industry. the "wheel of life" or "zoopraxiscope". Patented in 1867 by William Lincoln, The first motion picture film.

4. Enhancment of magnetic tape and cassette tapes Magnetic tape was further improved in the casset tape. Prior to 1963, when Philips introduced the Compact Audio Cassette, almost all tape recordings had used the reel-to-reel format. Reel-to-reel Compact Audio Cassette

5. Cd’s and Digital storage Cd is short for (Optical Disc) In 1974 a project was started with a 7 man team from the Phillips company to recreate an optical disc that was vastly better then the large vinyl record. Cd (Optical Disc)This was used for Digital storage. Later used for dvd’s and games

6. Introduction to Speakers and improvements Speakers They were first developed as an add on to the telephone. They were put into radio’s, tv’s, computers, etc. Were further developed. To make better products.

7. Enhanced speakers and Audio profiles A multichannel sound technology that features 7 channels of sound in the left, right, center, left surround, right surround, left rear, right rear positions. 7.1 systems also have 1 channel for LFE (low frequency effects) which is usually sent to a subwoofer. How surround sound works 7.1 Surround sound speakers So…. This would be distributed around the room. Now have virtual surround sound with gaming headphones. Or just regular headphones But…

8. Certain speakers can cost thousands of dollars. Almost as much for a used car. Interesting Facts According to WikiPedia, the first documented use of Surround Sound occurred in 1940.

9. Pros and Cons to Audio Media Technology - Has been very beneficial to our world. ProsCons - We can listen to music - Radio, audio recordings - Saves lives (911) - Notifies us. (text messages, school bell, fire alarm. etc) - Can break - Cyber bullying - Prank calls - Hearing loss - If you are on the road, and you are listening to music, you cannot hear your surroundings, which could put you in danger. - Cost

10. Future of.. Water proof speakers (for phones) Water resistant, big sound, Bluetooth speaker that's mountable to nearly anything

11. Bibliography http://en.wikipedia.org/wiki/History_of_sound_recording http://en.wikipedia.org/wiki/%C3%89douard- L%C3%A9on_Scott_de_Martinville http://en.wikipedia.org/wiki/%C3%89douard- L%C3%A9on_Scott_de_Martinville http://en.wikipedia.org/wiki/Phonograph http://www.firstsounds.org/features/scott.php http://www.google.ca/ http://www.google.ca/imghp?hl=en&tab=wi