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Record Player And Record Structure

Jul 17, 2017

Domestic well-known Record Player manufacturers were mainly export-oriented, in 2008 began to gradually into the combination of export production enterprises, the Chinese people began to consume such luxury goods. DVD, VCD, SVCD, CD, MP3, MP4, JPEG, PICTVRE-CD and so on. The main features of the modern Record Player: DVD player + DVD + 5.1 power amplifier + digital radio + external audio, video compatible disc DVD, VCD, SVCD, CD, MP3, MP4, JPEG, PICTVRE-CD and so on. A variety of audio decoding Dolby AC-3, MPEG, PCM, HDCD and so on. A variety of video output composite video, S terminal, color and so on.

Precious logs, simple and elegant furnishings, gold-plated columns and carefully designed floral embellishment of the rich and beautiful temperament, set DVD, VCD, radio, Record Player, 5.1 amplifier, external audio input in one, is the modern technology and classical modeling Perfect fusion. Unique and noble design, is a manifestation of personality, taste of success and life of the release, is a can only be unspeakable unique feeling. Gramophone and Records 1, 1857 French Lyon, Scott (Scott Scott), according to the human ear drum film with the phenomenon of vibration, making a machine called Phonoautograph. A film attached to the smaller end of the horn microphone can mimic the tympanic membrane in general with sonic vibrations. Sticky on a bristle, you can vibrate the wave, engraved with a candle smoked a black paper. This device only records the sound wave shape, and there is no regeneration device. 2, 1877 French Charles, Cowo (Charles Cros) to the Paris Academy of Sciences to plan, to improve the design of Scott, the sound waves vibrated engraved on the black glass plate, and will record the glass plate ripple regeneration Voice, but unfortunately this plan has not been passed and abortion. Thomas Alva Edison in 1877, Thomas Alva Edison, accidentally made a machine called Record Player in the process of studying a simple automatic telegraph relay for Western Electronics, and published and applied for a patent in December of that year, It is also the first Record Player in human history. Department of tin foil to the drum, steel needle play, but because of wear and tear, each drum can only play two or three times. 4, 1887 Alexander, Graham, Alexander Graham Bell, will Edison's tin foil drum to wax coated paper tube, and to gem needle play, so a lot of noise reduction, the number of repeated use, life Also extended, this improved machine is called Graphophone. 5,188 years Edison admit defeat, immediately improve its machine, the use of all the wax roller, and the battery-driven motor instead of hand-rolled drum rotation. To increase the stability of the playback. Named Record Player, and listed in the year. In 1888 the German Emilie, Emile Berliner, introduced a machine called Gramophone, using a flat round waxed zinc plate as a medium for playback and recording, and also made master copies, greatly increased Record commercialization of the possibility of mass production, which is today's circular record ancestor.

Description: ﹝ ﹞ early flat circular record direction of movement from the inside out, with the modern record from the outside to the inside of the opposite. (2) drum recording lines are up and down, ups and downs, depth scoring; and flat circular record is about parallel to shake to mark the lines. This improvement, to maintain a certain needle pressure, increase the signal noise ratio and stability. 7,1893 flat round record began mass production. 8,1919 has been the application of electronic amplifiers in the Record Player ─ ─ Bell Labs Ma Maxfield (J. P. Maxfield) and Harrison (H. C. Harisonhop) to successfully create an all-electronic Record Player. 9,1925 microphone came out ─ ─ new recording method. 10,1933 invented stereo recording. In 1948, Peter Goldmark of CBS Labs extended the duration of the recording by shortening the distance between the flutes and the slowing down the recording speed. The release of LP (Long Playing) record, so the record speed from seventy-eight to sixteen turn, forty-five turn, to today's thirty-third and one third of the turn and stereotypes.

Description: After the Second World War, the production of the album material to abandon the long-term paint and switch to plastic, which is to promote the compact disc, LP can produce an important factor. 12, 1955 stereo record began to spread. 13, 1971 four-channel stereo system produced. 14, 1981 future CDs and even today's CDs, CDs, DVDs and unlimited future. Another version: 1857 French inventor Scott (Scott) invented the sonic vibrator, which is the earliest original tape recorder, is the originator of the Record Player. In 1877 Edison invented a recording device. You can transform the sound waves into metal pins, and then burn the waveforms on the tin foil of the cylindrical wax tube. When the needle travels again along the burned track, it can reissue the remaining sound. The device reads Edison's "Marie has a lamb" lyrics: "Mary holds the lamb and the lamb's hair is as white as snow." A total of 8 seconds of the sound of the world record in the history of the first sound. In 1878 Edison set up a company that manufactures Record Player, producing commercial tin foil carts. This is the world's first generation of sound carrier and the first product Record Player.