Sunday, June 2, 2019
Audio Recording Essay -- audio sound
Thomas Edison was responsible for the starting line audio recording back in 1877, using a phonograph to record the impressions into a tin-wrapped cylinder. He promptly applied for a patent, and was granted one the next February. This set-back model held the field for a few years, until 1881, when Charles Tainter in Volta Labs developed the first lateral-cut records (similar to the vinyl records were familiar with). Unfortunately, he had not developed a method of playback, just recording. This held until 1885, when Tainter cooperated with Chichester Bell to create vertically-cut cylinders coated in wax as the medium for the crude recording practice. These had the unfortunate downside of beingness exceedingly fragile. Finally, in 1887 Emile Berliner developed another gramophone using a lateral-cut medium. This method had the added bonus of being easily duplicated through electroplating. These three models competed in the market until later that year, when Edison developed a battery-powered version of his gramophone. That same year, Berliner developed his means of mass-production, copying onto heavy(p) rubber. All gramophones at this point had a capacity of a few minutes per disc. In 1889, the capital of South Carolina Phonograph Company was organized (grandpappy to the modern Columbia Music), who was also the first publisher of a music catalog. The next year saw the fielding of the first jukebox, which pulled in over $1000 (in 1890) in its first six months. 1893 saw the boom of Berliners model, to which ends he incorporated the Berliner Gramophone Co. A few years later he discovered a new shellac that proved a better medium than rubber. Around the same time, 1894 to be exact, the world saw Marconis first radio, which he promptly took to the States and... ...han PCM tend to be susceptible to data loss because they reference the previous measurement and merely indicate the change between them. This is typically solved by enclosing multiple copi es of the data in a single file. Although it defies common sense, it is actually more efficient to record a particular sound byte in ADPCM and enclose, say, four copies, than it is to encode a single PCM copy. SourcesDigital Recording Techniques http//www.digital-recordings.com/publ/pubrec.htmlGiancoli, Physics Principles with Applications, 5-E Chapter 12 -- Applications http//cwx.prenhall.com/giancoli/chapter12/essay2/deluxe-content.htmlHyperPhysics Concepts - http//hyper natural philosophy.phy-astr.gsu.edu/hbase/sound/soucon.htmlRecording Technology History - http//history.acusd.edu/gen/recording/notes.htmlSound - http//www.smgaels.org/physics/sound_1.htm
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