Ch 7: Radio, Recording, and Popular Music Flashcards
1896:
able to send/receive telegraph code over 2 miles
1899:
sound successfully transmitted sound across the English Channel
1901:
sound successfully transmitted across the Atlantic.
1903: What is liquid barretter and who created it?
the first audio device permitting reception of wireless voice transmissions, Reginald Fessenden
1906: what is audion tube and who invented it?
a vacuum tube that improved and amplified wireless signals; Lee DeForest
Lee DeForest
- made reliable transmission of clear voices and broadcast a reality
- 1st to see radio as a means of broadcast
radio in the 1900’s
Countless “broadcasters” went on the air, from hobbyists to corporations. Havoc reigned
- WWI: US government ordered closing of all radio stations
1877:
Thomas Edison patents the “talking machine”, a device replicating sound through a hand-cranked grooved cylinder and a needle. Movement over grooves generated into electrical energy that activated a diaphragm in a loudspeaker and produced sound. DRAWBACK: Sound couldn’t be duplicated.
1860:
Edouard-Leon Scott de Martinville records a song on his phonoautograph
1887:
Thomas Edison’s problem solved: German immigrant Emile Berliner’s gramophone used a flat rotating wax-coated disc that could be easily copied or pressed.
Emile Berliner’s contrubutions
The gramophone (duplicative sound), a sophisticated microphone (through his company RCA Victor Records), importing of recordings from famous European opera stars.
1905:
Columbia Phonograph Company introduces 2-sided disc.
1920:
hundreds of phonograph and gramophone companies exist, devices were standard features in US homes.
Experimental station 8XK in Pittsburgh received a license from Dept. of Commerce to operate as KDKA and produced first commercial radio broadcast.
1919:
More than 2 million machines and 107 million recordings sold in this year alone.
Who was considered the “Father of Radio”?
Guglielmo Marconi
1924:
Development of electromagnetic recording by Joseph P Maxwell at Bell Laboratory
broadcast predates the coming of radio
Alexander Graham Bell’s telephone company had a subscription music service in major cities in the late 1800’s through telephone wires
“Radio Music Box Memo”
In 1916, young Russian immigrant and employee of American Marconi David Sarnoff sent his superiors “a plan of development that would make radio a ‘household utility’ in the same sense as the piano or the phonograph”
bickering in broadcast
Patent fights and lawsuits delayed introduction of broadcasting to a mass audience.
Through the war effort, US gov improves radio patents for war use
End of the war in 1919, patents returned to owners, bickering renewed
formation of RCA
concerned that medium would be wasted and fearful that a foreign company (British Marconi) would control, US gov orders a government-sanctioned monopoly consisting of American Marconi, General Electric, American Telephone and Telegraph, and Westinghouse–forming Radio Corporation of America. (1921)
Frank Conrad
Sept 30 1920: a Westinghouse impressed with listener numbers picking up broadcasts from garage radio station of company engineer Frank Conrad asks him to move into the main factory