196 B. R. Randall, Frequency Analysis , Bruhl & Kjaer (B&K), 1987, Well aimed at mechanical engineers. Available directly from B&K. 197 E. Rank and G. Kubin, ``A waveguide model for slapbass synthesis,'' in Proceedings of the International Conference on Acoustics, Speech, and Signal Processing , vol. 1, (New York), pp. 443-446, IEEE Press, 1997. 198