Interpolated Allpass Fractional Delay Filters Using Root Displacement

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2006-05-14

Author

Hacıhabiboğlu, Hüseyin
Günel Kılıç, Banu

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Fractional-delay filter is the general name given to filters modelling non-integer delays. Such filters have a flat phase delay for a wide frequency band, with the value of the phase 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.

Subject Keywords

Acoustics, Computer Science, Artificial Intelligence, Engineering, Electrical & Electronic, Imaging Science & Photographic Technology

URI

https://hdl.handle.net/11511/31491

DOI

https://doi.org/10.1109/icassp.2006.1660791

Conference Name

31st IEEE International Conference on Acoustics, Speech and Signal Processing

Collections

Graduate School of Informatics, Conference / Seminar

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Citation Formats

H. Hacıhabiboğlu and B. Günel Kılıç, “Interpolated Allpass Fractional Delay Filters Using Root Displacement,” presented at the 31st IEEE International Conference on Acoustics, Speech and Signal Processing, Toulouse, FRANCE, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31491.