Table 2

Modal frequencies (in Hz) and sound powers (in dB re 1 pW) for of the smallest (30% reduction) and largest (10% increase) f-hole shape variations given a 1 N input force.

Mode f 70% f 110% L 70% L 110%
A0 238 307 94.9 103
CBR 435 425 89.6 94.8
B1 513* 496 92.6* 108.4
B1+ 611 577 112.5 114.8
*

For the B1 mode the lowest value is for the second smallest f-hole size (22% reduction) since this mode does not clearly appear for the smallest f-hole size.

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