  Encouraged by recent interest in traditional Chinese instruments this work
proposes a computational sound synthesis model for a traditional Chinese
instrument, the guzheng. Digital waveguide model and modal synthesis are the
most popular physical modelling methods. However, the excitation signal is
usually over-simplified and the design of some digital filters is inadequate
for real-time synthesis. We propose an accurate and efficient approach to
synthesise the string signal of the guzheng. Our proposed model enables
accurate parametric control of the pluck because the parameters are based on
physical model of the instrument. The sound of the guzheng is then computed as
the convolution of the synthesised string signal and the impulse response of
the resonant body. As proof of concept, the 21st string of the guzheng is
synthesised using the proposed model. The sound computed using our model shows
improved accuracy with an acceptable computational complexity.
