Shelving filter cascade with adjustable transition slope and bandwidth
Paper in proceedings, 2020

A shelving filter that exhibits an adjustable transition band is derived from a cascade of second order infinite impulse response shelving filters. Two of three parameters, i.e. shelving level, transition slope and transition bandwidth, can be freely adjusted in order to describe the design specifications. The accuracy of the resulting response depends on the number of deployed biquads per octave. If this is set too small, deviations in level and bandwidth as well as a rippled slope can occur. The shelving filter cascade might be used in applications, that require a fractional-order slope in a certain bandwidth, such as for sound reinforcement system equalization, sound field synthesis and audio production.

Author

Frank Schultz

University of Rostock

Nara Hahn

Chalmers, Architecture and Civil Engineering, Applied Acoustics

Sascha Spors

University of Rostock

148th Audio Engineering Society International Convention

148th Audio Engineering Society International Convention 2020
Vienna, Virtual, Online, Austria,

Subject Categories

Other Engineering and Technologies not elsewhere specified

Control Engineering

Signal Processing

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Latest update

10/21/2020