Acoustic evaluation method for harp resonator based on impedance technology, and experiment device

Abstract

The invention discloses an acoustic evaluation method and experimental device for a harp resonance box based on impedance technology, and is characterized in that: the experimental device includes an impedance analyzer, a harp resonance box, a first piezoelectric sensor, and a second piezoelectric sensor , the third piezoelectric sensor, the fourth piezoelectric sensor, a computer and its software processing system, the acoustic evaluation method and experimental device of the present invention, without the need for the player to play the harp, directly use the impedance analyzer to test the harp resonance box in the middle range. , high-pitched zone 1, high-pitched zone 2, and super high-pitched zone are scanned to test the impedance spectrum of the harp resonance box within the scanning frequency range, and then judge the pros and cons of the harp resonance box according to the impedance spectrum of the harp resonance box . The invention has simple structure and reasonable design, overcomes the artificial factors in evaluating the timbre of the harp in the traditional method, objectively evaluates the quality of the timbre of the harp resonance box, and provides a brand-new harp evaluation method for harp manufacturers.

Description

technical field [0001] The invention relates to the fields of impedance technology and harp production technology, in particular to an acoustic evaluation method and experimental device for a harp resonance box based on impedance technology. Background technique [0002] The harp is one of the oldest plucked string instruments in the world. The modern harp has forty-seven strings of different lengths, and seven pedals can change the pitch of the strings. The harp is composed of a body assembly and a string system. The body assembly is composed of a qin post, a string board, a resonance box and a base. The string system is composed of strings, pegs, tuning transmission parts and pedals. The resonance box of a harp Consists of front panel, back panel and side panels. [0003] The harp resonance box is one of the key components of the harp. The resonance box is the pronunciation amplifier of the harp. It is an important component related to the volume and tone of the harp. Th...

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 harp 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.

Images