Recording the vibration of sound on a record is to carve a hole in the record, which is the track on the turntable. In this way, the sound signal is transformed into a mechanical signal-vibration.
Playing is to restore mechanical signals to sound. The key equipment is the pickup. When the record rotates, the stylus of the pickup slides relatively on the track, and the pits or twists and turns on the track make the stylus vibrate. At this time, even if there is no electricity, you will hear the sound if you listen carefully, but the volume is too small.
These vibrations obtained by the needle are converted into electrical signals through the pickup, and after a series of demodulation and amplification, sound is generated through the terminal, that is, the speaker, which is the recorded sound.
Extended data:
Development history—
1857, the French inventor Scott invented the acoustic vibrator, which is the earliest original tape recorder and the originator of the phonograph.
1877, Edison made the first phonograph in human history and began to store media. In the past 100 years, it has been constantly innovating. From the very beginning, drums were made of tin foil and played with steel needles, resulting in each drum disappearing only a few times, to the DVD of modern laser audio-visual storage software, which has shown unparalleled audio-visual realm in 2 1 century.
Shellac record When Edison invented the phonograph, it was recorded on a tin foil drum. In the early days, only one drum could be recorded at a time, and each drum was worn out after listening to it five or six times. 1887, Emily Berliner, a german technician, made a copy of the original in the future with a gold-plated copper mold as the master mold and hard wax as the raw material (shellac, also known as foreign dry paint). The next year, records began to be mass-produced like other commodities.
The phonograph was first introduced to Japan in 1879, and 1899 established the first record company, Sanguangtang. At that time, the technology of recording and making records was controlled by Europe and America, and Japanese records had to be produced in Europe and America. Therefore, the early Japanese records were all made by foreign technicians crossing the sea to Japan, taking their masters back to Europe and America to make records, and then exported to Japan for sale.
The first company in Japan that prided itself on producing phonographs and records was Japan-America Phonograph Manufacturing Co., Ltd., which was established in 1907 through technical cooperation between the United States and Japan. In the same year, Japanese Tomomi Keigo developed the manufacturing technology of flat disc records, which broke through the technical monopoly in Europe and America. At this time, Japan was defeated in the Russo-Japanese War, the national economy flourished, and people's consumption power increased. Therefore, Rimi music recorder manufacturing company began to produce domestic records from its factory in Kawasaki in April 1909.
19 10 Rimi Gramophone Manufacturing Co., Ltd. increased its capital and was reorganized into Japan Gramophone Chamber of Commerce (hereinafter referred to as "Rixu"). After the establishment of Japan Storage, in addition to producing records, phonographs began to be produced in large quantities, competing with imported goods from Europe and America. Subsequently, emerging record companies sprang up like mushrooms after rain.
Japan Phonograph Chamber of Commerce was established in 19 10. At the same time, a joint-stock company, the Japanese Phonograph Chamber of Commerce, was established in Taipei City, Taiwan Province Province (now Hengyang Road, Taipei), and began to sell phonographs and records in Taiwan Province Province, and began to record Taiwanese music.
According to the book Records-A History of Cultural Development written by Japanese Kamenosuke Yamaguchi, Japanese phonographs and records were introduced to Taiwan Province Province in 19 14, and it has been 95 years since then.
Recording materials range from foreign dry paint to DVD with PC components, recording techniques range from single track recording to multi-track recording, and playing media range from bulky phonograph to thin DVD player.
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