[PD] steep filter?

[João Pais]

Hi,

does anyone has a good suggestion for a very steep filter? Preferably  
something that cuts through the frequencies without any rollof at all? (if  
possible)

I've tried the iemlib hp10_** filters, also 2 in a row, but the result is  
still too gradual. Putting 16 lop~ in a row make makes roughly the same  
result. I wanted to avoid fft filters, because they might alter the  
original signal. Or is there any other option? (even if it has to be fft)

cheers,

João

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