Axiom-Crux

Ive never been totally happy with any of the built in max filters. Ive made a few algorithms for the biquad, and had medium success. Ive studied as much as I can with wiki and the net. Searched maxobjects.com and got everything I can find, and Im still not entirely happy. Does anyone know of a truely great SVF or 2/4 pole filter? I don't get why the resonance of filtercoeff+biquad seems to sound a bit annoying sometimes no matter how I tune it, it just isn't as nice as most digital/analogue synths Ive heard.

Ive never been totally happy with any of the built in max filters.  Ive made a few algorithms for the biquad, and had medium success.  Ive studied as much as I can with wiki and the net.  Searched maxobjects.com and got everything I can find, and Im still not entirely happy.  Does anyone know of a truely great SVF or 2/4 pole filter?  I don't get why the resonance of filtercoeff+biquad seems to sound a bit annoying sometimes no matter how I tune it, it just isn't as nice as most digital/analogue synths Ive heard.

filters

On 11 Sep 2007, at 07:17, Nicholas C. Raftis III wrote:

> Does anyone know of a truely great SVF or 2/4 pole filter?

i like 2up_svf~ by randy jones, but surely you have already tried 

>   Does anyone know of a truely great SVF or 2/4 pole filter?

i like 2up_svf~ by randy jones, but surely you have already tried  
that one.
vb


yes, same with me, got a little bit frustrated with the standard filters and the control abilities. i did a port of the moogvcf from musicdsp.org which sounds nice and is easy to control, it's itself a port of the csound moog filter and also available in supercollider. if you want the code or the java classes, let me know. at the moment i am trying to rebuild the diode ladder filter from reaktor, but it will still take some time.

if anyone has some good resources for filters (code?) i would also be interested...

2up_svf~ is mac only, does anyone know of a good

2up_svf~ is mac only, does anyone know of a good
alternative for XP?


a while ago, i met a fellow (german) maxer in the uk who developed an object called b4ladder~ which was (AFAIK) an emulation of the moog ladder filter. unfortunately the maxobjects.com link is broken (

http://maxobjects.com/?v=objects&id_objet=2566&requested=b4ladder~&operateur=AND&id_plateforme=0).

but you could try getting in touch to see if he is willing to share some of his resources / or code. his website is: 

meanwhile any chance you could share your moogvcf as an external?

Quote: micha wrote on Tue, 11 September 2007 10:52

----------------------------------------------------

> yes, same with me, got a little bit frustrated with the standard filters and the control abilities. i did a port of the moogvcf from musicdsp.org which sounds nice and is easy to control, it's itself a port of the csound moog filter and also available in supercollider. if you want the code or the java classes, let me know. at the moment i am trying to rebuild the diode ladder filter from reaktor, but it will still take some time.

> if anyone has some good resources for filters (code?) i would also be interested...

a while ago, i met a fellow (german) maxer in the uk who developed an object called b4ladder~ which was (AFAIK) an emulation of the moog ladder filter. unfortunately the maxobjects.com link is broken (http://maxobjects.com/?v=objects&id_objet=2566&requested=b4ladder~&operateur=AND&id_plateforme=0).

but you could try getting in touch to see if he is willing to share some of his resources / or code. his website is: http://www.block4.com/

Quote: micha wrote on Tue, 11 September 2007 10:52
----------------------------------------------------
> yes, same with me, got a little bit frustrated with the standard filters and the control abilities. i did a port of the moogvcf from musicdsp.org which sounds nice and is easy to control, it's itself a port of the csound moog filter and also available in supercollider. if you want the code or the java classes, let me know. at the moment i am trying to rebuild the diode ladder filter from reaktor, but it will still take some time.
>
> if anyone has some good resources for filters (code?) i would also be interested...
>
> micha
----------------------------------------------------


anthony, i did a port of it some month ago and you can get the xp 2up_svf from my "site".

thanks for the info with block4, i will mail the developer, maybe i can make a xp port, if he is willing to share the sources.

> meanwhile any chance you could share your moogvcf as an external?

i attached an older version as source and compiled java class including a help patch. everything is (only) signal controled, with frequency going from 0-1 and resonance from 0-~3.99. these values are updated every sample.

be carefull, if the filter blows up, there is no way to reset it. i did a rework and a couple of variations of it, but these are at the moment not really ready to work on any other computer than mine. if i find some time in the next days i will finish them and let you know.

btw, the diode ladder was easier to finish than i thought and sounds really nice, i try to pack this in too.

Date: Tuesday, September 11, 2007 11:03 am

> anthony, i did a port of it some month ago and you can get the xp 

----- Original Message -----
From: micha 
Date: Tuesday, September 11, 2007 11:03 am
Subject: [maxmsp] Re:  FILTERS

>
> anthony, i did a port of it some month ago and you can get the xp 
> 2up_svf from my "site".
>
> see:
>
> http://www.khm.de/~mthies
>


Thanks for this Micha - but am getting a "deltaclick~ not found" 

error - and don't see an object like that listed on maxobjects.com??

>i attached an older version as source and compiled java class 

>including a help patch. everything is (only) signal controled, with 

>frequency going from 0-1 and resonance from 0-~3.99. these values 

202 Hack / PC-1600 User / VSTi Host / OMS Convert / Jack OS X / Major 

Thanks for this Micha - but am getting a "deltaclick~ not found" 
error - and don't see an object like that listed on maxobjects.com??

At 6:14 PM +0200 9/11/07, micha wrote:
>i attached an older version as source and compiled java class 
>including a help patch. everything is (only) signal controled, with 
>frequency going from 0-1 and resonance from 0-~3.99. these values 
>are updated every sample.

-- 
Dan Nigrin
Defective Records
202 Hack / PC-1600 User / VSTi Host / OMS Convert / Jack OS X / Major 
Malfunction
http://www.defectiverecords.com
http://www.jackosx.com


ahhh sorry, that's only for the demonstration, you can substitute it by:

>ahhh sorry, that's only for the demonstration, you can substitute it by:

Thanks for the source too - nice for guys like me who think this 

stuff is impossible to build, but then to see in reality how 

straightforward it is.... (if you know what you're doing!)

At 8:02 PM +0200 9/11/07, micha wrote:
>ahhh sorry, that's only for the demonstration, you can substitute it by:

Thanks for the source too - nice for guys like me who think this 
stuff is impossible to build, but then to see in reality how 
straightforward it is.... (if you know what you're doing!)

Dan
-- 
Dan Nigrin
Defective Records
202 Hack / PC-1600 User / VSTi Host / OMS Convert / Jack OS X / Major 
Malfunction
http://www.defectiverecords.com
http://www.jackosx.com


After posting this late last night I did a comparison of the 2up svf and the max svf with astonishing results, 2up has insanely better response, is self oscillating at full 1.0 res, much cleaner and not as harsh, and it says in the help that its made from the same algo as the max one but double precision and "tweaked for musicality" well its just what I needed, but I would love to have more other flavors too. I would love to try out this moog ladder filter, Ill download that later tonight. Good work guys!

After posting this late last night I did a comparison of the 2up svf and the max svf with astonishing results, 2up has insanely better response, is self oscillating at full 1.0 res, much cleaner and not as harsh, and it says in the help that its made from the same algo as the max one but double precision and "tweaked for musicality" well its just what I needed, but I would love to have more other flavors too.  I would love to try out this moog ladder filter, Ill download that later tonight.  Good work guys!


nice work, look forward to hearing the ladder filter!

BTW the person i mentioned in my previous post is doing some Linux audio dev - so he should be up for sharing code! ;)

Quote: micha wrote on Tue, 11 September 2007 17:14

> thanks for the info with block4, i will mail the developer, maybe i can make a xp port, if he is willing to share the sources.

> > meanwhile any chance you could share your moogvcf as an external?

> i attached an older version as source and compiled java class including a help patch. everything is (only) signal controled, with frequency going from 0-1 and resonance from 0-~3.99. these values are updated every sample.

> be carefull, if the filter blows up, there is no way to reset it. i did a rework and a couple of variations of it, but these are at the moment not really ready to work on any other computer than mine. if i find some time in the next days i will finish them and let you know.

> btw, the diode ladder was easier to finish than i thought and sounds really nice, i try to pack this in too.

nice work, look forward to hearing the ladder filter!
BTW the person i mentioned in my previous post is doing some Linux audio dev - so he should be up for sharing code! ;)

Quote: micha wrote on Tue, 11 September 2007 17:14
----------------------------------------------------
> thanks for the info with block4, i will mail the developer, maybe i can make a xp port, if he is willing to share the sources.
>
> > meanwhile any chance you could share your moogvcf as an external?
>
> i attached an older version as source and compiled java class including a help patch. everything is (only) signal controled, with frequency going from 0-1 and resonance from 0-~3.99. these values are updated every sample.
>
> be carefull, if the filter blows up, there is no way to reset it. i did a rework and a couple of variations of it, but these are at the moment not really ready to work on any other computer than mine. if i find some time in the next days i will finish them and let you know.
>
> btw, the diode ladder was easier to finish than i thought and sounds really nice, i try to pack this in too.
>
> micha
----------------------------------------------------


i seem to have some problem installing 2up_svf~ on OSX. i moved the 

2up_svf~.mxo to my externals folder, and the help file to the max-help folder. should i move something else?

on initiating an instance i get a message

? error: 2up_svf~: unable to load object bundle executable

2007-09-12 12:30:36.036 MaxMSP[658] CFLog (21): dyld returns 2 when trying to load /Applications/MaxMSP 4.6/Cycling '74/externals/3rd party externals/2up_svf~.mxo/Contents/MacOS/2up_svf~

i seem to have some problem installing 2up_svf~ on OSX. i moved the  
2up_svf~.mxo to my externals folder, and the help file to the max-help folder. should i move something else?

? error: 2up_svf~: unable to load object bundle executable
 2007-09-12 12:30:36.036 MaxMSP[658] CFLog (21): dyld returns 2 when trying to load /Applications/MaxMSP 4.6/Cycling '74/externals/3rd party externals/2up_svf~.mxo/Contents/MacOS/2up_svf~


bin, you running mathats strange, Im using an intel, are you on PPC?

We're working on a solution; hopefully not too far away...

> Yeah, hopefully i already know that, Jean-Michel. But sitting on

> which i know will break, even after 99999 seconds, stress me too

> Yeah, hopefully i already know that, Jean-Michel. But sitting on
> a board
> which i know will break, even after 99999 seconds, stress me too
> much.
>
> f.e


Thanks for the feedback! Add "warm" and "punchy" and I've got a 

Someone had a problem with the object on PPC which I think I've 

On Sep 11, 2007, at 6:04 PM, Nicholas C. Raftis III wrote:

> After posting this late last night I did a comparison of the 2up 

> svf and the max svf with astonishing results, 2up has insanely 

> better response, is self oscillating at full 1.0 res, much cleaner 

> and not as harsh, and it says in the help that its made from the 

> same algo as the max one but double precision and "tweaked for 

> musicality" well its just what I needed, but I would love to have 

> more other flavors too. I would love to try out this moog ladder 

> filter, Ill download that later tonight. Good work guys!

Thanks for the feedback!  Add "warm" and "punchy" and I've got a  
sales brochure.

Someone had a problem with the object on PPC which I think I've  
fixed.  Update at http://2uptech.com , as always.

On Sep 11, 2007, at 6:04 PM, Nicholas C. Raftis III wrote:
> After posting this late last night I did a comparison of the 2up  
> svf and the max svf with astonishing results, 2up has insanely  
> better response, is self oscillating at full 1.0 res, much cleaner  
> and not as harsh, and it says in the help that its made from the  
> same algo as the max one but double precision and "tweaked for  
> musicality" well its just what I needed, but I would love to have  
> more other flavors too.  I would love to try out this moog ladder  
> filter, Ill download that later tonight.  Good work guys!
> --

What was the problem ? I doing an external and face the same issue, so your fix solution can help a lot...

On 26 Jan 2008, at 12:13, Salvator wrote:

> What was the problem ? I doing an external and face the same issue, 

if i remember well, i think it was simply that the object wasn't 

compiled for both architechtures, but only for i386.

changing the build settings in the xcode project to i386/pcc and 

recompiling fixed the problem for me at that time.

>
> Hi Randy,
>
> What was the problem ? I doing an external and face the same issue,  
> so your fix solution can help a lot...
>

if i remember well, i think it was simply that the object wasn't  
compiled for both architechtures, but only for i386.
changing the build settings in the xcode project to i386/pcc and  
recompiling fixed the problem for me at that time.

Anyone got a version of 2up_svf for Mac kicking around?

 seems to be no longer operational, and that's also where 

Anyone got a version of 2up_svf for Mac kicking around? 

http://2uptech.com/ seems to be no longer operational, and that's also where the Max Objects page seems to point to...


randy jones isn't maintaining the object anymore, but he made the sources available. some time ago i did an update to 64-bit which can be found here:

https://github.com/v7b1/2up_svf_64bit-version/releases

randy jones isn't maintaining the object anymore, but he made the sources available. some time ago i did an update to 64-bit which can be found here:https://github.com/v7b1/2up_svf_64bit-version/releases


https://web.archive.org/web/20110128203934/http://2uptech.com/

but the download link seems broken. maybe it is active in an older version of the page.

latest version is here: https://web.archive.org/web/20110128203934/http://2uptech.com/
but the download link seems broken. maybe it is active in an older version of the page.


https://web.archive.org/web/20040610173851/http://www.2uptech.com/sit/2up_svf~.sit