N2 - Experimental modal analysis of a violin with three different tensions of a bass bar has been performed. The bass bar tension is the only intentionally introduced modification of the instrument. The aim of the study was to find differences and similarities between top plate modal parameters determined by a bass bar perfectly fitting the shape of the top plate, the bass bar with a tension usually applied by luthiers (normal), and the tension higher than the normal value. In the modal analysis four signature modes are taken into account. Bass bar tension does not change the sequence of mode shapes. Changes in modal damping are insignificant. An increase in bass bar tension causes an increase in modal frequencies A0 and B(1+) and does not change the frequencies of modes CBR and B(1-). L1 - http://journals.pan.pl/Content/101438/PDF/15_paper.pdf L2 - http://journals.pan.pl/Content/101438 PY - 2014 IS - No 1 EP - 149 DO - 10.2478/aoa-2014-0015 KW - violins KW - modal analysis KW - bass bar tension A1 - Skrodzka, Ewa B. A1 - Linde, BogumiƂ B.J. A1 - Krupa, Antoni PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 39 DA - 2014 T1 - Effect of Bass Bar Tension on Modal Parameters of a Violin's Top Plate SP - 145 UR - http://journals.pan.pl/dlibra/publication/edition/101438 T2 - Archives of Acoustics