Discrete and Digital Signals and Systems - Digital Signal Processing: An Introduction with MATLAB and Applications - page 127

• For reverberations: s(n) = x(n) ? b s(n - M). This is so because a rever-
beration is an accumulation of previous reflections of the signal. Hence,
H(z) = 1/(1 - b z -M ). This is an IIR filter with M poles.

Figure ( 2.43 ) shows a block diagram of the above procedure.

References

1. Harris, F.J.: On the use of windows for harmonic analysis with the discrete Fourier transform.
Proc. IEEE 66, 51-83 (1978)

2. Oppenheim, A.V., Schafer R.: Discrete-Time Signal Processing, Prentice-Hall, USA (1989)