[music-dsp] newbie: polyphase&upsampling

[Vesa Norilo]

>
>
>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.

Vesa