| Paper: | SPTM-P14.10 | ||
| Session: | Sampling, Extrapolation and Interpolation II | ||
| Time: | Friday, May 19, 16:30 - 18:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing Theory and Methods: Sampling, Extrapolation, and Interpolation | ||
| Title: | Interpolated Allpass Fractional-Delay Filters using Root Displacement | ||
| Authors: | Huseyin Hacihabiboglu, Banu Gunel, Ahmet Kondoz, University of Surrey, United Kingdom | ||
| Abstract: | Fractional-delay filter is the general name given to filters modelling non-integer delays. Such filters have a flat group delay for a wide frequency band, with the value of the group delay approximating the fractional delay. A maximally-flat delay IIR fractional-delay filter can be obtained by the Thiran approximation. A simple and efficient method for obtaining filters modelling intermediate fractional delays from two Thiran fractional-delay filters is proposed. The proposed method allows continuously modifying the fractional delay. Computational complexity of the proposed method is discussed. A practical application of the method in model-based sound synthesis is given as an example. | ||
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