Vibration and acoustic analysis of acoustic guitar in consideration of transient sound

Abstract

The sound characteristic of an acoustic guitar is empirically designed for long time. The up to date vibration and acoustic analysis are applied to investigate the difference between typical guitars especially focused on transient vibration and sound just after picking a string at keynote and higher harmonic frequencies. By using a simplified front plate model of a guitar with bracings, structural modification method is utilized to realize the Operational Deflection Shape in order to meet the target sound characteristic.