Selon Dan Neveu neveu@buffalo.edu:
Do you have access to the Jimmies lib? http://www.ircam.fr/produits/logiciels/log-compl/msp/Jimmies-e.html
I don't have them myself. I just know there're additional filters provided.
you must belong to the Forum Ircam to get them ...
any other externals, like parameters converters for [biquad~] ? (abstractions, etc)
On Mon, 17 May 2004 julien.breval@tremplin-utc.net wrote:
Hello
In June I will participate to a concert in which we all have to use
Max/MSP.
Therefore I am currently porting some of my Pd patches to MSP, and I have
some
problems with bandpass filtering.
In Pd, I use [vcf~]. I don't find any MSP filter that has a similar sound.
With MSP filters like [svf~], [filtergraph] or [reson~], if you raise Q,
you
can still hear lots of frequencies that are only more or less attenuated.
With
[vcf~] some frequencies can disappear if you raise Q (actually, they are
very
much attenuated so you don't hear them). I prefer this sound.
The right solution sould be to use [biquad~]. MSP-[biquad~] looks like
Pd-
[biquad~] with some arguments inversed. Unfortunately, besides a paper from Harmony Central I didn't find much information on it. Do you know any documentation about biquad filters ?
How do you make the simplest (linear) bandpass filter using [biquad~] (parameters should be F and Q) ? I don't find any working conversion
algorithm
from (F,Q) to (bb1, bb2, ff1, ff2, ff3). I need something that resembles a '^' rather than a -90°rotated-'{', for
any
(Q,F) parameters :)
Thanks a lot
j
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