Sound RecordingWashington State University录音华盛顿州立大学.ppt

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1、Sound Recording,We need to backtrack a bit to understand sound recording,Leon Scott de Martinville-phonautograph-1857,Attached a bristle to a membrane at the end of a cone,set the bristle to touch a piece of smoked glassSpoke into the conemembrane vibrated to the sound and the bristle etched a wavy

2、line onto the smoked glass,Spring of 2009 scientists were able to get sound from one of de Martinvilles paper phonautographs a woman singing for 10 seconds,Thomas Edison,Tinfoil phonograph 1877,Close-up on bumps,Chichester Bell/Charles Tainter,Bell and Tainters phonograph 1885,Close-up,Emile Berline

3、r,Berliner Gramophone 1887,Eldridge Johnson/Gramophone,“Little Nipper”,Columbias Eagle,Mechanical recording session,Electrical Recording,Valdemar Poulsen,Telegraphone 1897,Close up of telegraphone,Telegraphone 1915,Fritz Pfleumer,Magnetic tape,BASF/AEG Magnetophone 1935,Carbon granule mic,Condenser

4、Microphone,Ribbon mike,Electrical recording session,Cone speaker,Siemans dynamic speaker,Radiation speaker,Orthophonic speaker,Speaker construction,Back to tape,Reel to reel tape recorder 1948,Cassette tape 1963,Norelco CarryCorder 1965,8 track tape 1966,Sony Walkman 1979,Digital Revolution,Close up of record grooves,CD pits,