Recent studies showed that mechanical coupling between structure and strings can alter the sound of the solid body electric guitar. Modal frequencies and damping ratios of the structure can explain some sound di erences between instruments. These vibratory parameters can vary because of lutherie decisions (e.g. intentionally tting guitars with di erent woods for sound quality
purposes), wood intrinsic variability, or making process variability.
Yet the vast majority of solid body electric guitars comes from an industrial massproduction: the manufacturing process is designed for producing guitars that are the most similar possible. However, musicians and makers know that guitars of the same model both share features, and still have some individual
properties. The experimental quanti cation of the modal parameter variability of nominally identical electric guitars in an industrial context is the aim of this article. This variability is assessed on one guitar set, and compared to other industrial objects. A second guitar set is investigated: it consists of guitars with maple or rosewood ngerboard, all other speci cations being identical. This second set allows the comparison between making process and wood variability, with the variability due to an intentional lutherie decision: the change of the ngerboard wood.
Arthur Pate, Jean-LoÏc Le Carrou , Benoit Fabre https://hal.archives-ouvertes.fr