[music-dsp] newbie: polyphase&upsampling
warder at dlc.fi
Thu Mar 20 01:11:00 EST 2003
>Lagrange interpolators converge to sincs as order -> infinity. I'm
>wondering, has anyone done a comparsion of n:th order lagrange
>interpolation with windowed sinc of equal length/order? I may be wrong but
>I think lagranges could come out pretty favourably in such a comparsion.
I haven't done any scientific testing but my impression in a dual
polarized string model fractional delay application was that lagrange
had more inherent damping than sinc with the same order. I wasn't very
thorough so I may be wrong, but that's my impression.
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