On the sound production of the timpani
Lamberto Tronchin, A. Buttazzoni, Valerio Tarabusi · 2004
Abstract:- The acoustic features of kettledrums through modal analysis and acoustic radiation measure were investigated. Modal analysis exciting the system by a hammer and a shaker on two different kettledrums was studied. Through this analysis 15 vibration modes were found. Their mappings resulted very clear and defined. Acoustic radiation using two different parameters was measured. The first parameter, vp / , has been already used to measure acoustic radiation of the soundboard of a piano (Giordano), and of a harpsichord (Tronchin et al). The second, vp ⋅ , is a new parameter called intensity of acoustic radiation. This parameter resulted more linked to the frequency response function than vp /.