To understand the pronunciation principle of erhu, you must first look at the materials when purchasing, and listen to the sound of the erhu. Pay attention to the craftsmanship and sound quality of the erhu.

The pronunciation principle of erhu: under the action of the right hand, the bow hairs stained with turpentine make the strings continuously and evenly rubbed, which causes the strings to vibrate, and the strings then transmit the vibration frequency to the piano skin through the bridge. . Due to the action of the "membrane", the piano skin has expanded the amplitude many times at once. This basically achieves the volume that people need. However, if there is no special function of the resonance box - the piano tube, the sound of the piano skin is harsh, and only through the resonance effect of the piano tube can the piano sound be softer and purer. After the basic conditions for pronunciation are met, the key to whether the pronunciation of the erhu meets the performance needs of the music content lies in the player's playing skills.

Buy erhu according to your own financial situation. For beginners, popular erhu is completely available. When purchasing, you should first focus on the erhu materials, and at the same time take into account the firm structure, well-proportioned layout, generous style, smooth and bright, etc.

If you have decided to buy a certain erhu, it is best to try pulling it to see if the pronunciation is pure and sensitive, whether the volume can meet the minimum requirements, whether the volume difference between the upper and lower ends is too large, and whether the phenomenon of empty and sand is more serious Wait. In addition, it can be weighed by hand. Generally speaking, the quality of the erhu of the same variety is basically guaranteed when the material is sufficiently dry.

High-quality erhu should have the conditions of fine selection of materials, fine craftsmanship, pure sound quality, beautiful tone, high volume, high sensitivity and good balance. In terms of external quality, mahogany or red sandalwood with straight texture, uniform color and no scars should be used, and the python skin should be uniform, bright, bright in color and tough in leather. When making, the rod body should be smooth, smooth and upright, the edges and corners of the piano barrel are well-proportioned, the appearance is neat and beautiful, the skin is moderately tight, the installation angle is suitable, and the coordination is tight and firm.

In terms of sound, the sound quality should be pure, the pronunciation should be clean without noise and noise, and the timbre should be beautiful, soft, round, bright, and thick and not turbid. The volume should be based on pure sound quality and beautiful timbre, with strong resonance, loud pronunciation, and good transmission effect. The two strings must respond quickly in each sound area, no matter weak or strong, the sensitivity must be high, and it is easy to pull up. The volume between the upper, middle and lower positions is relatively average, and the difference should not be too large.

Generally speaking, the pronunciation of the newly produced erhu is always relatively noisy. It will take several months or even years of use. After the nature of the python skin is gradually stabilized, the sound will be soft and pleasant. Therefore, when choosing a new erhu, it is necessary to estimate its future development prospects. It is a well-made erhu. If it is always stored and not pulled, the sound will not be good, and the erhu that is often played will be better the more you pull it.