"Running", which should belong to the category of erhu sound quality, is one of the most concise evaluation points for erhu sound quality.

People often say that the sound of a certain erhu is "dry", which is embodied as the sound is empty, divergent, astringent, stiff, etc., just like some people's speech sounds monotonous, dry, unpleasant, unpleasant, and lacks appeal. . The reason for the analysis should be that in the pronunciation of erhu, the high frequency occupies a large weight, and the high frequency vibration is strong, etc., because the wavelength of the high frequency is short, and the attenuation of the high frequency is fast, giving people a gap between the two tones and the connection is not tight. Out of breath" feeling, so people feel that the sound made by Erhu is short and lacks stamina, lacks penetrating power and lacks appeal.

People often say that the sound of a certain erhu is "stuffy", which is embodied in the dullness, stagnation, ambiguity, slowness and so on of the erhu sound. Just like some people's speech, it sounds deep, desolate, muddy and unclear. It seems to give the listener a gloomy and creepy feeling. (It is common in TV movies, but also in real life). The reason for the analysis should be that the low frequency occupies a large part of the erhu pronunciation, and the vibration of the low frequency is strong. The wavelength of the audio frequency is long, and the attenuation of the low frequency audio frequency is slow. Lack of passion, lack of explosiveness.

"Run". That is, the high, medium and low frequencies of the erhu pronunciation are reasonably distributed, organically blended together, and played in a coordinated manner, so as to properly display the erhu's unique timbre and appropriate volume.

"Run". It is to make the erhu pronunciation more magnetic, contagious, and more friendly, making people feel that the erhu pronunciation is very "oily". The process of pulling is more pleasant and more entry-level, just like some people's speeches make people feel very pleasant, attractive, and moving, and can mobilize people's psychological activities. happy. Such speech skills are best reflected and exemplified by some high-level announcers and hosts.

"Run". A basic evaluation requirement for the pronunciation effect of the erhu, to improve and play the "moistening" of the erhu, there are three factors for personal analysis and understanding: First, the production of the erhu, which is the key, mainly the production process, technology, shape, materials, etc., It can best reflect the production level and comprehension level of the producer. Because the same material is produced by different people, the produced erhus are very different. The second is the debugging and maintenance of the erhu. Through people's reasonable maintenance and adjustment, reasonable accessories (strings, jins, piano codes, sound pads, etc.), and using the right medicine method, a certain adjustment effect can be obtained to enhance the strengths and avoid weaknesses, and improve the "moisturizing" of the erhu. . The third is the player's control, which is the embodiment of an elastic and plastic playing technique. It relies on the player's technical regulation ability to modify the pronunciation defects of the erhu and improve the "running" of the erhu.

When choosing to buy an erhu, pay attention to the "run" of its pronunciation, especially the new "sheng" and "run" flavors of the new qin. A good erhu new qin has a "raw" but not lack of "run".

Therefore, from the perspective of making erhu, it is not only a simple collection of various piano-making materials, but should be the optimal combination of various piano-making materials through the use of scientific and technological processes to achieve the best effect. The crystallization of qi, spirit and spirit is the embodiment of "the way of comprehending the qin". Therefore, people's erhu "the way to make the qin" is also "the way to learn the qin"; people's "the way to buy the qin" is also the "way to learn the qin"; people's "the way to play the qin" is also the "way to learn the qin" ".