Acoustics of idakkā: a drum with “perfect pitch” Seminar

Idakkā is a drum which is noted for its musical quality. Its ability to produce sounds of a definite pitch with numerous harmonic overtones makes it fairly unique among drums. In this talk, the musical nature of this drum is explored through the analysis of audio recordings. Then, a mathematical model of the drum is proposed. It is shown from numerical simulations that the harmonic nature of the idakkā can be partially explained by the interaction of the drumhead and two thin string which are behind the drumhead. The harmonic nature thus established is validated using nonlinear normal modes. As part of this work, we also propose a minor improvement in numerical modeling of string membrane collision interactions, valid in a restricted parameter range.

This is a hybrid seminar held in Building 13, room 3019 and via Teams , link below.

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+44 20 3794 0272,,78635759# United Kingdom, London

Phone Conference ID: 786 357 59#

Speaker:

Kevin Jose is a third year PhD student and Marie Curie fellow at the Computational Engineering and Design Group, University of Southampton. He completed his Bachelor and Master of Technology (Dual Degree) from the Indian Institute of Technology Kanpur in 2017. His research interests are vibrations, wave mechanics and mechanics of solids. Previously he worked at New York University in a graduate researcher position and at Boston Consulting Group as a management consultant.