Influence of spruce guitar resonance panel structure on acoustic vibration response characteristics

Guanzheng Wan
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Jinyi Chen
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Yihang Ben
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Siyuan Wang
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Liang Zhang
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Lan He
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Yuanji Zhao
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Haotian Cui
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
Zhenbo Liu
Key Laboratory of Bio-Based Material Science & Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China

Article ID: 4345

Keywords: guitar resonance panels; peak-to-peak value; root mean square; spectral centroid; high-frequency energy; acoustic vibration performance

Abstract

In recent years, the guitar manufacturing industry has faced a growing shortage of large-diameter, high-quality spruce wood resources. To address this issue, it is urgently necessary to conduct research on the structural design of guitar resonance panels. This study investigates three types of spruce guitar resonance panels with different structures, exciting them at various points, and using a multi-channel FFT analyzer to capture vibration signals and analyze their acoustic vibration response characteristics. The results show that in terms of root mean square (RMS) values indicating overall signal intensity and peak-to-peak values reflecting signal amplitude, the double-spliced resonance panel exhibits the highest vibration energy, followed by the quadruple-spliced resonance panel, while the triple-spliced resonance panel shows the lowest. Regarding spectral centroid and high-frequency energy—indicating richness of high-frequency content—and spectral flatness and kurtosis—reflecting uniformity of energy distribution—the triple-spliced resonance panel demonstrates the brightest tonal quality and the most even spectral energy distribution, followed by the quadruple-spliced panel. From raw material to finished panel, and from double-spliced to quadruple-spliced panels, both elastic modulus and shear modulus show an increasing trend. Compared to the double-spliced panel, multi-spliced panels exhibit higher specific dynamic elastic modulus and acoustic impedance, but lower acoustic radiation quality constant. Although individual parameters vary to some extent, the overall acoustic vibration performance of multi-spliced panels differs little from that of the double-spliced panel. These findings not only provide practical guidance for manufacturers but also offer theoretical support for improving the acoustic quality of guitars.

Published

2026-07-22

How to Cite

Wan, G., Chen, J., Ben, Y., Wang, S., Zhang, L., He, L., Zhao, Y., Cui, H., & Liu, Z. (2026). Influence of spruce guitar resonance panel structure on acoustic vibration response characteristics. Sound & Vibration, 60(4). https://doi.org/10.59400/sv4345

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Issue

Vol. 60 No. 4 (2026)

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Article

This work is licensed under a Creative Commons Attribution 4.0 International License.

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Influence of spruce guitar resonance panel structure on acoustic vibration response characteristics

Abstract

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