Abstract
The Japanese koto is a plucked 13-string wooden instrument noted for its complex resonances. A finite element model of the koto has been developed based on a computed tomography (CT) scan and has previously been reported. It can now be used as a tool to undertake more detailed examination of the koto's sound behavior. While first iterations of the model were found to predict frequencies above 100 Hz, predictions for frequencies below 100 Hz were less accurate. Physical studies however have shown many low frequencies do occur and are not artefacts. This paper discusses initial simulations with the model and more recent studies with Gaussian pulses that reveal low frequencies not previously obtained from the CT model. Their contribution to the characteristics of the sound behavior of the koto are discussed.
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