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Gramophones and tape recorders are devices that store sound, so what's the difference between them? Say it today.
The difference: the recorder is a record of the sound, which is a copy of the sound, and the sound can be played repeatedly; and the gramophone is a device that plays hard, that is, for the sound of the sound, the most primitive sound, the sound recorder and the gramophone. The difference is obvious. One is to copy sounds and the other is original sounds. Even in inventions, the tape recorders started from gramophones.
Gramophone Introduction: The phonograph, also known as a record player, is a type of playback device whose sound is stored in an arc-shaped notch acoustically carved in the plane of the record as a disk. The record was placed on a turntable and rotated under the stylus. The gramophone is one of Edison's many great inventions, because the record can be copied in a large amount and the playing time is longer than most of the cylindrical recording media.
Recorder introduction: The recorder is a machine that records sounds for playback. He uses hard magnetic materials as a carrier to record the sound signals on the carrier using the magnetic remanence characteristics of magnetic materials. Generally, he has a playback function. Most household recorders are cassette tape recorders. Edison invented the gramophone so that recording could be achieved. The invention of the recorder was also made on the gramophone. The metal cylinder of the machine is fixed laterally on the support, its surface is engraved with lines; it is connected to a small crank; next to the metal cylinder is a thick metal tube, which has a needle in the center of the bottom membrane, facing the corrugation of the metal cylinder. . There is a groove in the metal tube underneath the tin foil, so as the song fluctuates, the stylus scribbles different shades of flutes on the tin foil. When the stylus vibrates repeatedly along the ripples, the original sound is emitted.
However, the recorder at that time mainly used mechanical principles to achieve sound reproduction. The volume of the recorded sound is so low that the speaker shouts loudly when recording. In order to improve this recording method, Danish scientist Paulson used the principle of telephone transmission to start trying to store sound magnetically. Paulson conducted experiment with steel wire. Under the action of magnetic force, the steel wire becomes a magnet. After the magnetic force disappears, the steel wire in the magnetic field will still retain magnetism. This retained magnetic property is called remanence. Bulsen wrapped a long steel wire around a reel. The wire was connected to the other by an electromagnet. The recording microphone was connected to the coil of the electromagnet. In this way, the energized electromagnet turns the electromagnetic signal in the telephone tube into a magnetic field, and the steel wire in the magnetic field is magnetized to generate remanence magnetism that varies with the size of the sound, and the sound is recorded on the steel wire. Because of the high quality of steel wire and steel tape used in this type of magnetic recording, it was cumbersome and inconvenient, affecting the popularity of this type of recording.
Summary: The function of the phonograph should be the same as that of the radio, recording and playing, but it is not the same thing. The tape recorder's carrier for sound is tape, and the current phonograph's sound carrier is a large, thin circular dish. Many inventions of music originate from gramophones, so gramophones make a great contribution to music. Of course, Edison is the ancestor of these devices. Because of Edison, these voice recording devices were available.
The difference: the recorder is a record of the sound, which is a copy of the sound, and the sound can be played repeatedly; and the gramophone is a device that plays hard, that is, for the sound of the sound, the most primitive sound, the sound recorder and the gramophone. The difference is obvious. One is to copy sounds and the other is original sounds. Even in inventions, the tape recorders started from gramophones.
Gramophone Introduction: The phonograph, also known as a record player, is a type of playback device whose sound is stored in an arc-shaped notch acoustically carved in the plane of the record as a disk. The record was placed on a turntable and rotated under the stylus. The gramophone is one of Edison's many great inventions, because the record can be copied in a large amount and the playing time is longer than most of the cylindrical recording media.
Recorder introduction: The recorder is a machine that records sounds for playback. He uses hard magnetic materials as a carrier to record the sound signals on the carrier using the magnetic remanence characteristics of magnetic materials. Generally, he has a playback function. Most household recorders are cassette tape recorders. Edison invented the gramophone so that recording could be achieved. The invention of the recorder was also made on the gramophone. The metal cylinder of the machine is fixed laterally on the support, its surface is engraved with lines; it is connected to a small crank; next to the metal cylinder is a thick metal tube, which has a needle in the center of the bottom membrane, facing the corrugation of the metal cylinder. . There is a groove in the metal tube underneath the tin foil, so as the song fluctuates, the stylus scribbles different shades of flutes on the tin foil. When the stylus vibrates repeatedly along the ripples, the original sound is emitted.
However, the recorder at that time mainly used mechanical principles to achieve sound reproduction. The volume of the recorded sound is so low that the speaker shouts loudly when recording. In order to improve this recording method, Danish scientist Paulson used the principle of telephone transmission to start trying to store sound magnetically. Paulson conducted experiment with steel wire. Under the action of magnetic force, the steel wire becomes a magnet. After the magnetic force disappears, the steel wire in the magnetic field will still retain magnetism. This retained magnetic property is called remanence. Bulsen wrapped a long steel wire around a reel. The wire was connected to the other by an electromagnet. The recording microphone was connected to the coil of the electromagnet. In this way, the energized electromagnet turns the electromagnetic signal in the telephone tube into a magnetic field, and the steel wire in the magnetic field is magnetized to generate remanence magnetism that varies with the size of the sound, and the sound is recorded on the steel wire. Because of the high quality of steel wire and steel tape used in this type of magnetic recording, it was cumbersome and inconvenient, affecting the popularity of this type of recording.
Summary: The function of the phonograph should be the same as that of the radio, recording and playing, but it is not the same thing. The tape recorder's carrier for sound is tape, and the current phonograph's sound carrier is a large, thin circular dish. Many inventions of music originate from gramophones, so gramophones make a great contribution to music. Of course, Edison is the ancestor of these devices. Because of Edison, these voice recording devices were available.
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