Music Box Vocal Principle 15, Music Box Vocal Principle

The most scientific explanation: "The main part of the music box is composed of two parts: a drum and a reed.

The principle is that the mainspring drives the drum with a small protrusion on the surface to rotate, and when the protrusion passes through the reed, it will pluck the reed (first slowly lift it, then suddenly put it down) to make the reed vibrate and make a sound. The reeds of the music box make the articulation part of the music box cut into thin strips of different lengths on a large steel plate. The roller is the equivalent of musical score.

Basically the same as the ** box, a round shaft welded on a regular bump, there is a metal sheet nearby, the round shaft rotates, the bump is swept from the edge of the metal sheet, due to the different bumps, so that the pronunciation is different, plus a fixed speed, a turnaround, will make a fixed music. ”

The mathematical essence of sound is a univariate function, for example, a standard non-attenuated sound is a sine function (it can also be a cosine function, and the translation function sounds exactly the same). What do you mean by that? You think of the eardrum as a tight plane, and when the eardrum vibrates, the center point deviates from the original equilibrium point.

Let's do a unary function where the abscissa is time and the ordinate is where the center point deviates from the equilibrium point at that moment (plus or minus!). The vibration of such an eardrum corresponds to a univariate function. This is the mathematical nature of sound.

A membrane (like an eardrum) was tightened on the bottom of the horn, and a thin needle was threaded through the membrane, and the tip of the needle was pressed against the glossy tin foil cylinder. When a person speaks, shake the tin foil cylinder so that the tip of the needle engravates the vibration of the membrane on the cylinder. When the tip of the needle is put back to the starting point and the tin foil cylinder is rotated, the tip of the needle vibrates with the uneven surface of the tin foil that has just been engraved, and the film also vibrates like when talking to a person, and the sound is repeated!

Basically the same as the ** box, a round shaft welded on a regular bump, there is a metal sheet nearby, the round shaft rotates, the bump is swept from the edge of the metal sheet, due to the different bumps, so that the pronunciation is different, plus a fixed speed, a turnaround, will make a fixed music.

That's the rationale.

The origin of the music box.

To explain the term "music box", we must first figure out what "eight sounds" are. There is such a record in the ancient "Three Character Classic" in China: "Soil leather, wood, stone and gold."

Silk and bamboo are eight sounds. It can be seen that it is a general term for ancient musical instruments, that is, eight categories: crow, earth, leather, wood, stone, gold, silk and bamboo. Among the ancient musical instruments, the sheng and zhu belong to the genus; Xun and other belong to the soil type; Drums and other drums belong to leather; Wooden fish and other woody species; Chime and other stones are kinds; Bells, bells, etc. belong to the gold category; Qin, Se and other silk species; Pipes, flutes, flutes, etc. belong to bamboo.

It is not difficult to see that the raw materials used in the production of musical instruments, such as clay, leather, wood, stone, metal, silk and bamboo, refer to the raw materials used in the production of musical instruments. These eight ingredients can be said to make all musical instruments. The "music box" is a definition that is both vivid and colorful.

That is to say, the sound of all the instruments is included in this box, all the sounds of ** are included, and all ** expressions are included. Later, the advent of music boxes that used perforated paper as a "musical score" and for the pronunciation of compressed air streams led to the advent of the phonograph. And then it led to the decline of the music box.

It was not until the 60s of the last century that Mr. and Mrs. Quito Rejue in Switzerland, the birthplace of music boxes, returned to their family's traditional industry, and the company they founded is still the only company ,..in the world that makes music boxes by handIt has opened the first Shanghai Music Box Treasure Exhibition Hall with an area of 400 square meters, exhibiting more than 200 pieces of classic music box collections of different ages and types carefully selected by the Arashiyama Music Box Museum in Kyoto, Japan.