Implementation of fractional delay filter from scratch in matlab

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Camille Dingam
Camille Dingam 2022-10-8
评论： Camille Dingam 2022-10-17
Hello, below is the implementation of fractional delay filter using lagrange. Can anyone help to find the code from scratch of this function. Or anyone who has its C version can recommend to me. Thank you very much
orderfracfilter=4;
d = fdesign.fracdelay(binshift-floor(binshift),'N',orderfracfilter);
secondOrderFrac = design(d,'lagrange','filterstructure','farrowfd');

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Chunru
Chunru 2022-10-8
If you are looking for source code of fractional delay, check out this and its accompanying codes:
T. I. Laakso, V. Valimaki, M. Karjalainen and U. K. Laine, "Splitting the unit delay [FIR/all pass filters design]," in IEEE Signal Processing Magazine, vol. 13, no. 1, pp. 30-60, Jan. 1996, doi: 10.1109/79.482137.

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