Temporal phase evaluation of transients in the Brazilian cuíca drum
2015; Acoustical Society of America; Volume: 138; Issue: 3_Supplement Linguagem: Inglês
10.1121/1.4933926
ISSN1520-9024
AutoresTatiana G. Statsenko, Wilfried Kausel,
Tópico(s)Advanced Fiber Optic Sensors
ResumoTransient deformations can be observed by means of time-resolved electronic speckle pattern interferometry (trESPI), which implements a high-speed camera in the experimental setup and allows measurements of non-reproducible transients in real time. The stick-slip phenomena in musical instruments leads to transient nonlinear effects in the surface deformation, which can be resolved and characterized using trESPI. In this work, transient effects during the stick-slip motion of the Brazilian cuíca drum are investigated. Measurements of the cuíca under harmonic excitation and in playing conditions using trESPI are presented leading to a quantitative analysis of the motion.
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