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Connections between parallel and serial combinations of comb filters and feedback delay networks

: Schlecht, S.J.; Habets, E.A.P.

Informationstechnische Gesellschaft -ITG-; TH Aachen -RWTH-:
IWAENC 2012, International Workshop on Acoustic Signal Enhancement. Proceedings. CD-ROM : RWTH Aachen University, Germany, September 4th - 6th, 2012
Berlin: VDE-Verlag, 2012
ISBN: 978-3-8007-3451-1
4 pp.
International Workshop on Acoustic Signal Enhancement (IWAENC) <13, 2012, Aachen>
Conference Paper
Fraunhofer IIS ()

Comb filters composed in a parallel or a serial way are a popular part of delay-line based artificial reverberators. Because the analysis of a complex comb filter structure can be tedious, there is a need for transforming such a structure into a compact and general representation. For this a transformation into the feedback delay network (FDN) filter structure is proposed as it is a general and well established framework to investigate the acoustic properties of the filter and therefore allows to compare different approaches.