Acoustics evaluation method and experiment device of Zhongruan resonating box based on impedance technology

Abstract

The invention discloses an acoustics evaluation method and experiment device of a Zhongruan resonating box based on the impedance technology. The experiment device is characterized by comprising an impedance analyzer, a Zhongruan resonating box, a first piezoelectric sensor, a second piezoelectric sensor, a third piezoelectric sensor, a fourth piezoelectric sensor, a computer and a software processing system. According to the invention, there is no need to ask a player to play the Zhongruan; the impedance analyzer is directly used for carrying out frequency scanning on the low-pitch region, the middle-pitch region, the high-pitch region 1 and the high-pitch region 2 of the Zhongruan resonating box; an impedance frequency spectrum graph of the Zhongruan resonating box in a scanning frequency range is tested; and the quality of the Zhongruan resonating box is judged according to the impedance frequency spectrum graph of the Zhongruan resonating box. The method and the device are simple in structure and proper in design; manual factors in evaluation of the tone of the Zhongruan in the prior art are overcome; the quality of the tone of the Zhongruan resonating box is objectively evaluated; and a novel Zhongruan evaluation method is provided for Zhongruan manufacturers.

Description

technical field [0001] The invention relates to the fields of impedance technology and Zhongruan production technology, in particular to an acoustic evaluation method and experimental device of a Zhongruan resonance box based on impedance technology. Background technique [0002] First of all, the Zhongruan resonance box is one of the key components of Zhongruan. The resonance box is the pronunciation amplifier of Zhongruan. It is an important part related to the volume and tone of Zhongruan. The quality of Zhongruan resonance box is directly related to the quality of Zhongruan. The Zhongruan is composed of three parts: the resonance box, the piano bar and the piano head. In the vibration of the Zhongruan, the vibration energy from the strings is transmitted to the resonance box through the bridge, and the sound waves are transmitted through the resonance box. There are not only the vibration of the string but also the vibration of the board and the vibration of the air, e...

AI Technical Summary

Problems solved by technology

The traditional acoustic evaluation of musical instruments needs to be carried out in a professional acoustic laboratory. Players are required to play Zhongruan music, and judges sitting in different positions in the acoustic laboratory make evaluations. It can be seen that there are human factors in the evaluation

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