How does a record make a sound, how does a record player make a sound

How and what kind of old-fashioned needle phonographs work.

On a black turntable, the sound vibrations are achieved by an undulating track or groove that fluctuates on the plane of the turntable, reproducing as accurately as possible the pressure changes of the sound waves. As the stylus moves along the groove, the tip vibrates slightly as the groove fluctuates. This vibration is amplified by a membrane transmitted by a mechanical device and emitted into the air.

When the turntable is rotated at the same speed as it was recorded, the sound is accurately recovered, and if not, it produces vibrations at a different frequency than the recorded frequency. The various rustling sounds come from the dust, causing additional movement of the stylus.

Old record players include hand-cranked record players, 4-speed record players, etc. After the hand-cranked record player is fully wound, it can **1 record in a row with 2 sides. The 4-speed record player** coarse grain record effect is better than the dense grain record, and the steel needle record is still unsatisfactory, and it can also be convenient for transcribing tapes.

The cartridge of the drill needle machine is a diamond, which does not need to be replaced, but the "rustle" sound is louder; The needle piece has a small noise and a loud timbre, but the stylus needs to be replaced. An old record player at a low price can be left for fun, but it won't be in good condition. A record player with good performance and good quality is collectible.

Old records are divided into steel needle records, dense grain records, coarse grain records, and drill needle records. **Pavette and needle tabs use their own cartridges to protect pale discs. The record should be clean, and the dust in the sound groove will affect the **.

At the beginning of the last century, there was no complete means of bakelite record filling in China, and most of the old folk records that are now scattered in the world are produced by record companies opened in China by the United States, Germany, Britain and Japan, such as Shanghai Baidai and American Victory. The essence is the essence of Peking Opera and songs in the twenties and thirties of China, which faithfully records the voices and voices of the older generation of actors such as Mei Lanfang, Ma Lianliang, Zhou Xinfang, Yan Jupeng, Tan Xinpei, Bai Yushuang, Zhou Xuan, etc., which is an extremely rare historical material with high collection value.

Why are there nicks on vinyl and how do you make a sound? Today is a long time to see.

Abstract:The record player, also known as the phonograph, is an electric device used to broadcast record recordings, which was invented by the American inventor Thomas Edison in 1877. The record player is composed of a turntable, a large horn, a tonearm, a cartridge and other parts, and its sound production principle is that when the record rotates, the texture of the record makes the stylus vibrate and make a sound.

When using the record player, put the vinyl record on a clean turntable, unlock the tonearm, and slowly put the phonograph's stylus on the record, the record will automatically rotate, and the ** on the vinyl record will automatically come out. Let's take a look at how a jukebox makes sound. 1. How does the record player make sound.

The record player, also known as the phonograph, is a machine that can automatically produce sound after putting on the record, many friends are curious about the sound principle of the record player, so how does the record player make sound?

A record player is a primitive playback device in which the sound is stored in an arc-shaped groove that is acoustically carved into the plane of the record (disc). The record is placed on a turntable and rotated under the stylus. The stylus scribbles over these pits of different sizes and spacing will produce vibrations of different frequencies, so that there is sound.

The phono stylus of the turntable is in direct contact with the rotating record to produce mechanical vibrations, which are converted into electrical signals through the coils in the pickup capsule and sent to the multi-stage amplifier for amplification, thereby pushing the speaker to emit sound.

Second, the structure of the record player.

The structure of the record player can be simply divided into four parts: turntable, speaker, tonearm, and cartridge.

1. Turntable: The phonograph turntable is used to place the record, and drive the record to rotate, so that the gramophone can read the analog signal on the vinyl record with the age needle, so as to produce sound.

3. Tonearm: The front end of the tonearm is the cartridge, and the back is a gyratory device, and now the stove will generally have a gramophone automatic arm closing function, that is, after the vinyl record on the phonograph turntable, the tonearm will automatically retract, the tonearm will be retracted, and the turntable will automatically stop.

4. Cartridge: The main component on the phono is the stylus, which is also one of the main components of the phonograph, the analog signal of the stylus is converted into vibration, and the vibration signal is transmitted to a special membrane to reproduce the sound wave pressure and become sound, and then amplified by the loudspeaker.

3. How to use the record player.

1. Put your favorite gramophone vinyl record on a clean turntable, take off the cartridge cover on the cartridge, unlock the tonearm, and slowly put the phonograph stylus on the record, the record will automatically rotate, and the ** on the vinyl record will automatically come out.