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Simplified Feedback Comb Filter

Special case: $ b_0=1$ , $ -a_M = g \; \Rightarrow$

\begin{eqnarray*}
y(n) &=& x(n) + g\, y(n-M)\\ [10pt]
H(z) &=& \frac{1}{1-g\,z^{-M}}
\end{eqnarray*}


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``Computational Acoustic Modeling with Digital Delay'', by Julius O. Smith III, (From Lecture Overheads, Music 420).
Copyright © 2014-03-24 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
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