Mar
5
When you buy a violin, you aboriginal faced with the catechism is: how to select? What is acceptable? Although it is not such a catechism can be succinct return, however as continued as you can as we advise you the means below carefully done, you spend a higher value the opportunity of defects would be significantly reduced. Identification of the violin in common, not alone accept the production of experience, can be known with its processes, and should again accept a sure playing techniques, in course from the information, production and sound affection, etc. one by one. One, materials panel: employ scales spruce. Scales than the other spruce wood has abounding characteristics, which are especially: ?, their relatives and blaze texture, tree-ring space (spring wood) texture is too soft, however it rings (texture autumn wood) is too dense, and affluent flexibility, both accessible to withstand the force of the strings vibration. And accordingly accept the top audio performance. ?, audio celerity, faster than any other of wood vibration transfer and elasticity, and its paralell to grain of the sound celerity of up to 5166 meters per moment than the sound speed in air (350 meters per moment) added than 14 times faster, they are able to employ the violin sound touchy and able. ?, capable of high-frequency (3000-5000 week / s or above) sounds make damping aftereffect (vibration damping aftereffect is the disappearance of the phenomenon within the timber from the timber arising from friction between molecules). This is less than the other timber. Scales spruce damping aftereffect can be increased with the frequency of low frequency sound damping is baby, however not some of those high-frequency overtone violin (that is, those with discordant tone pitch), then make a too able damping aftereffect to enable them to weaken, so candied Pieces. Senior piano texture should be upright, uniform density, fibre group must fast, soft and elastic, does not acquiesce cut mark, resin bag and repair. The figure of fish-scale spruce Central rings, 5-8 cells per cm superior to the line of the widest phone no added than 3 mm next to 20 mm in the case of changes in phone wideness should be added than 1.5 mm, changes in phone wideness of the panel should not be better than 2 mm, each phone in the fall of the percentage of not added than 30% of the timber, the full panel wideness of phone information between the autumn should be agnate. Experience has proved that: Texture from the 2 mm and uniform pronunciation of the top. The pros and cons of the violin sound is the answer to the choice of panels. Outside of the violin sound of the relentless pursuit of perfection, air and Bows Square piano used by high-level production of the panel is not alone buttoned up a rigorous choice and testing, however again must be added than a decade by the accustomed drying of high-quality fish-scale spruce, however again a baby size of accustomed Dry fifty age of acceptable information, however the increasing scarcity of means, added than fifty age aged accept been hard to access the information. Intermediate violin texture candor, density uniform, not allowed to accept scars Festival, resin bag and repair. Pu-class violin texture generally upright, uniform, allowing a baby size of mark Festival, resin capsule and inserts added. Propel plate to be divide, you should employ health, materials, and remove the side of acceptable skin, pith of wood. Acquiesce its timber defects are as follows: senior project Intermediate Violin Violin Violin & P grade twill not added than 1% of the length of not added than 1% of the length of not added than 2% of the length of vortex patterns are not allowed not allowed not added than two phone bend Maximum bending radius curved thing of the length of the vector does not exceed 1% of less than 2% of less than 5% of community limited wideness not added than two rings are not allowed added than two non-color are not allowed not allowed non-decay of accustomed and chemical discolouration, Tu After the colouring colour should not be exposed to reconcile the two panels 2, bass beams, line loudspeaker, mind and tail pieces of wood, wood and linings of Qin angle (both in the intra-abdominal piano) should be the employ of the identical affection of materials and panels, you can f-hole observation of three, back to employ the elastic texture of the maple dense maple branches, colour wood, timber characteristics: ? easy-to-vibration and audio quickly, for high-frequency sound damping ? fine-grained, appearance pretty, pretty emerged in breadth, after cutting a horizontal model (tiger) and the panel choice criteria should again be the identical, with a healthy wood, some bodies love to employ the wood grain of the information will curl back to make added user mistaken for piano violin back added flowers, piano, the bigger, ground is that they generally love to employ the process, who sings a pretty attending back with an acoustic performance of a acceptable panel, actually, on the back, the wood information of their curly audio performance not as acceptable as straight grain information, while a piano is based on its pros and cons of articulation identification. Air and Bows Square, Square, the leading read in Japan, Mr. Wang Nianzu accept seen a hardly any during the group of Vivaldi, backplane without model, sawing a too informal, and much a hardly any Mingqin back on distinct non-small mark cut, can be a admirable piano sound is incomparable. for the role of each backplane affirm no one, Mr. Wang anticipate it is valuable if the aging and time, the wideness of the grain texture is uniform, information health, colour uniform, accustomed drying age is continued enough . At show air and employ the back after 10 age of accustomed materials are dry Shanghao maple, as a sufficient inventory of materials used in prospect age will more and more be the bigger long-term. Back on the role of the violin in the entire panel, although not as valuable, however it even has a role because it allows the violin has a constant book of air. When the panel vibration, buttoned up the Sound Line, side, and Qin air conduction, backplane again will be vibration, so that Pieces has been strengthened, in specific, is to accomplish G, D file pronunciation of two able and able, at the identical age back shoulder a figure of strings generated from the four forces. Experiments exhibit that provided the violin was not lay back (there is no air-volume) alone in the aboriginal point of the backplane however will upload a wooden line loudspeaker help in the panel and the strips of wood between the Pieces will be significantly weakened, sound will be chicken feed. Moreover, the backplane itself, the vibration of much a anemic, however in high-frequency sound wave radiation world will be. Backplane of altered thickness too as its cooperation with the panel provided take, will act on the violin's sound, which are locate outside backplane valuable. Backplane and panels again love to action added than twin the access on the experience is again general to the independent panel on the back information, it is as of the block of information due to a vast tree trunks when the elections expected to chop outside the unmarried plate, must be famous that, with twin the access on action or sole plate production, the sound of the piano does not force even headstock and the back and sides should employ the identical information. Backplane to acquiesce timber defects scope and the identical panel. Side, Qin Ma both mind and back information used and the identical timber.