[PD] bp coefficient calculation test

[Alexandre Torres Porres]

btw, here's my lop test that works perfectly; cheers


2014-07-21 23:24 GMT-03:00 Alexandre Torres Porres <porres at gmail.com>:

> Hi there, as I've been saying here, I've been studying about filters and
> trying to emulate some of the filters as raw filters, or in biquad
> coefficients.
>
> I thought I had nailed [bp~], but now it seems there's some minor
> discrepancy between the original object and my patch implementation. Check
> the test patch I made:
>
> https://docs.google.com/file/d/0B3AoiT0xk8fnWmhuYWtPdk9UYUU/edit
>
> I'm analysing a  filtered noise with [env~] and the resulting numbers
> should match exactly in order to prove I've done it right, but a small
> difference in value insists on showing up.
>
> Would any of you be interested in checking it up? Maybe you can find some
> mistake that could be corrected and then match the numbers perfectly, or
> maybe you could tell me why there's such a small difference and it'll
> always be there... I don't know. I have the full code in the patch for you
> to check it out.
>
> All I know is that I've done the same thing with lop~ and numbers match
> beautifully
>
> By the way, [vcf~] is next on my list
>
> Thanks!
> cheers
>
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