R: [PD] resonant comb filter series
Ian Smith-Heisters
heisters at 0x09.com
Wed Feb 16 21:33:14 CET 2005
In case any of y'all is interested, I made a GOP version of the example
Derek posted earlier. It works very nicely for me, but no guarantees.
Cheers,
ian
derek holzer wrote:
> If you really wanna see the math, or at least two different versions
> that involve using sampling rate, see here:
>
> http://www-ccrma.stanford.edu/~serafin/320/assign5/Implementing_basic_Karplus.html
>
>
> and here:
>
> http://www.sfu.ca/~truax/reson.html
>
> derek
>
> pix wrote:
>
>> On Wed, Feb 16, 2005 at 04:35:09PM +0100, Davide Morelli wrote:
>
>
>>> why must we do
>>> deltime (msec) = (samplerate~ / Freq(Hz)) / 1000 instead?
>>
>>
>>
>> you shouldn't have to do this, you would only need to involve
>> samplerate~ if you were calculating the number of samples in the delay
>> line. but you don't need to, you just give it milliseconds and vd~ sorts
>> out the annoying stuff internally.
>>
>> the 1000/freq function you found should work as it gives you the
>> wavelength (in msecs) of the given frequency.
>
>
>
--
Ian Smith-Heisters
http://www.0x09.com
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