poly-sinc-ext2
Linear phase polyphase sinc filter with sharp cut-off and high stop-band attenuation for extended frequency response while completely cutting off by Nyquist frequency.
poly-sinc-ext3
Very steep 8 times longer version of poly-sinc-ext2.
poly-sincgauss-xla
Apodizing extra long Gaussian polyphase sinc filter with extremely high attenuation. Optimal timefrequency response.