Department or Administrative Unit
Physics
Document Type
Conference Proceeding
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Publication Date
2023
Journal
Proceedings of the European Acoustical Association
Abstract
Experiments that investigate how an individual musical instrument changes in response to subtle alterations must contend with measurement uncertainty, which typically arises from inconsistencies in the measurement setup. We quantify uncertainty in violin response measurements by measuring bridge admittance and radiatively of a single instrument that is repeatedly removed and reinstalled in our measurement apparatus. From this set of baseline measurements, we calculate the average and standard deviation of admittance and radiativity. The amount of variation observed in the baseline data is compared to the change in bridge admittance that occurred over several days due to a large and abrupt change in humidity. The overall change in admittance from 85% RH to 25% RH is much larger than the experimental uncertainty, but the change from 30% to 35% is within our uncertainty. Our goal is to establish a reliable threshold for measurable changes in violin response due to mechanical stimulation (i.e. “playing- in”), which is the subject of a concurrent experiment.
Recommended Citation
A. Piacsek and S. Lowery, "Experimental Uncertainty in Measurements of Violin Impulse Response," Proc. Euro. Acoust. Assoc., 3423 (2023). DOI:10.61782/fa.2023.0926