The piano code of the erhu is one of the important components of the erhu, and the quality of the sound quality of the erhu also plays an important role. The quality of the bridge is not the more expensive the better. People who don't understand choose the most expensive bridge. He thinks that the more expensive is good. In fact, this understanding is wrong. For example, when people buy clothes, they need to be different from person to person. The piano code plays the role of conducting the vibration frequency to the piano skin in the pronunciation of the erhu. The different vibration frequency harmonics generated by the strings can only transmit the vibration waves to the piano skin through the piano code, so that the piano skin can resonate and resonate. ring.

When choosing a piano code for your erhu, first of all, you need to see that your erhu ruomang skin has 9-12 diagonal scales, which means that your erhu python skin is thicker, not very translucent, and the skin is relatively tight. The sound is purer, but the loudness of the sound is not very high. This is because the amplitude determines the sound. The thickness of the leather is small, and the frequency is high when the amplitude is small. Compared with such a python skin, you can't choose a piano that is too hard. When the piano code is selected, the more hard the piano code is, the clearer and higher-pitched the sound will be. The sound that comes out is not so rounded.

If the erhu skin has 12 to 16 scales, this kind of skin is thin, with a sandy sound when playing, and the roundness is not enough. If you choose a piano with a looser wood density for such an erhu, the sound will be louder and the sound will be difficult. debugging. For such a piano skin, it is necessary to choose a bridge with high wood density and a harder bridge, and the chassis of the bridge is larger. What is the principle? The hard and dense wood bridge can reduce the amplitude, the small amplitude is small, the sand sound is small and the tone is pure.

The piano bridge should be placed in the center of the piano skin, so that the hexahedral angle of the piano skin is evenly stressed and the amplitude is uniform. It should be noted that if the filter pad is too thick and too thick, the sound will be dull. To improve the crispness of the sound, move the bridge slightly upwards by 5 mm, keeping the bridge and filter pad in the center of the piano skin. If the volume is too loud, move the bridge down within 5mm from the center position, the sound filter pad will reduce noise by the bridge, and the sound will be pure.

The newly purchased erhu can be used with the original piano code from the manufacturer, and the manufacturer also specially configures it according to the tightness of the new piano skin. Wait for a while and then choose the piano code according to the sound effect of your own piano. There are many reasons why the sound of the erhu is not good. The main reason is to make more adjustments according to the situation of your erhu. It may be the cause of the strings, or the reason of the pound will affect the sound quality of the erhu.