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Series and Parallel Filter Sections

In many situations it is better to implement a digital filter $ H(z)$ in terms of first- and/or second-order elementary sections, either in series or in parallel. In particular, such an implementation may have numerical advantages. In the time-varying case, it is easier to control fundamental parameters of small sections, such as pole frequencies, by means of coefficient variations.



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``Introduction to Digital Filters with Audio Applications'', by Julius O. Smith III, (September 2007 Edition).
Copyright © 2014-03-23 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
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