O.k. that helps a lot! Thanks. I'll read on, for the math thing. If anybody has any suggestions, how to solve the problem, it would be great. I got curious about this stuff and am a litttle impatiant to know how it works ...
Am Mittwoch 10 März 2010 00:12:30 schrieben Sie: > Check the 'cyclone' lib, it has Max clones. I think there is at least > one other reson~ included in Pd-extended. > > .hc > > On Mar 9, 2010, at 5:08 PM, Björn Lindig wrote: > > Hi, > > > > a friend asked me, wether there is a object similar to the [fffb~] > > in max/msp > > (a "fast fixed filter bank") in pd. I did not find it instantly so I > > started > > to build one after the formula posted in [reson~]s help in max: > > > > y[n] = gain * (x[n] - r * x[n-2]) + c1 * y[n-1] + c2 * y[n-2] > > > > I appended a patch, that I created after this formula. The Problem > > is, that I > > would love to klone the max-object, but at the moment I have only > > inlets for > > r, c1, c2 and gain. What I need is the math to calculate the values > > for r, c1, > > c2 and gain for given center frequency, Q/Bandwith, and gain. > > > > I started reading the chapters on time shifts and delays and filters > > in > > miller-puckettes book and the book of J. O. Smith. But to be honest, > > I did not > > yet understand much of what is writen there. So I thought, there > > might be > > someone arround here, who can give me a fast answer, or who can > > point me into > > the right direction. > > > > If it is the best to try resonz and resonr (I'm on train building pd- > > extended, > > used vanilla before), I'll accept that. On the other hand, I would > > be realy > > curious about the math that is used to solve this problem. > > > > Thank you very much! > > > > Bjoern > > > > > > > > #N canvas 611 38 615 510 10; > > #X obj 105 -13 inlet~; > > #X obj 105 394 outlet~; > > #X obj 153 218 delwrite~ del3; > > #X obj 125 348 delwrite~ del2; > > #X obj 105 121 +~; > > #X obj 104 239 +~; > > #X obj 104 320 +~; > > #X obj 125 99 *~; > > #X obj 122 218 *~; > > #X obj 138 299 *~; > > #X obj 239 -10 inlet~; > > #X text 239 -27 r; > > #X obj 307 -10 inlet~; > > #X obj 383 -7 inlet~; > > #X text 303 -33 c1; > > #X text 389 -26 c2; > > #X obj 124 14 delwrite~ del1 1; > > #X obj 125 78 delread~ del1; > > #X obj 123 198 delread~ del2 1; > > #X obj 138 278 delread~ del3 1; > > #X obj 427 134 samplerate~; > > #X msg 387 134 1; > > #X obj 387 155 /; > > #X obj 387 91 loadbang; > > #X floatatom 387 198 0 0 0 0 - - -; > > #X obj 387 112 t b b; > > #X obj 387 176 * 1000; > > #X obj 387 221 s one_sample; > > #X obj 125 34 r one_sample; > > #X obj 125 55 * 2; > > #X obj 131 177 r one_sample; > > #X obj 147 254 r one_sample; > > #X obj 105 150 *~; > > #X obj 455 -4 inlet~; > > #X text 456 -22 gain; > > #X connect 0 0 4 0; > > #X connect 0 0 16 0; > > #X connect 4 0 32 0; > > #X connect 5 0 6 0; > > #X connect 6 0 1 0; > > #X connect 6 0 3 0; > > #X connect 7 0 4 1; > > #X connect 8 0 5 1; > > #X connect 9 0 6 1; > > #X connect 10 0 7 1; > > #X connect 12 0 8 1; > > #X connect 13 0 9 1; > > #X connect 17 0 7 0; > > #X connect 18 0 8 0; > > #X connect 18 0 2 0; > > #X connect 19 0 9 0; > > #X connect 20 0 22 1; > > #X connect 21 0 22 0; > > #X connect 22 0 26 0; > > #X connect 23 0 25 0; > > #X connect 24 0 27 0; > > #X connect 25 0 21 0; > > #X connect 25 1 20 0; > > #X connect 26 0 24 0; > > #X connect 28 0 29 0; > > #X connect 29 0 17 0; > > #X connect 30 0 18 0; > > #X connect 31 0 19 0; > > #X connect 32 0 5 0; > > #X connect 33 0 32 1; > > > > _______________________________________________ > > [email protected] mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > --------------------------------------------------------------------------- > - > > Using ReBirth is like trying to play an 808 with a long stick. - > David Zicarelli _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
