1 / 9

Video Tech Timeline

Explore the fascinating timeline of audio technology, from the earliest voice recording in 1860 by Edouard-Leon Scott de Martinville to the development of moving-coil transducers and electric phonographs. Witness the innovation of "78" rpm technology, Marconi's radio transmission triumph, the birth of the "talking movie," and the mass production of commercial radios by RCA and portable radios by Zenith in the early 20th century.

renee
Download Presentation

Video Tech Timeline

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. By: Alan Missildine Video Tech Timeline

  2. The First Recording • In 1860 the earliest known recording was made by Edouard-Leon Scott de Martinville, creator of the Phonautograph. Audio playback had not yet be conceived, Scott sought to create a paper record of human speech that could be deciphered.

  3. The first moving-coil transducer, 1874 • Ernst W. Siemens was the first to describe the moving-coil transducer or “microphone” with a circular coil of wire in a magnetic field and supported so it could move axially

  4. 1888 • Thomas Edison introduces the electric motor driven phonograph

  5. 1901 • New “78” rpm technology is developed. • Guglielmo Marconi used a 122 meter kite- supported antenna for reception. Successfully transmitting a radio message from his company’s new high power station at poldhu, Cornwall to Signal Hill in St. John’s, Newfoundland. The distance between the two stations was about 3,500 Kilometers (2,100 Miles).

  6. 1913 • Thomas Edison created the first “Talking movie” by using his kinetophone process. A cylinder player synchronized to a film projector.

  7. 1920 • RCA Starts mass producing commercial radios and the quality of radios improve also.

  8. 1924 • Zenith develops the first portable radio.

More Related