It was discussed earlier: http://iem.kug.ac.at/mailinglists/pd-list/2003-January/001902.html -- Marc

Le dim 02/03/2003 à 18:30, Marco Scoffier a écrit :

I have made a little patch to do panning, but it is a linear pan which leaves a great big hole between the two speakers. I remember a few years back at IRCAM a demo of using a table with a handdrawn sort of logarithmic? curve to get a nice pan (in Max), but I am feeling a little clueless and helpless right now, and any help is appreciated. Below is a list of the things I have tried so far.

Searching the pure-data.org site comes up with nothing. I cannot find a LADSPA plugin either.

I have tried the pan~ in johannes zmolnig's "HOWTO write an External" http://iem.kug.ac.at/pd/externals-HOWTO/node6.html but it mixes two input's to one output, and seems to be linear also. I want one in to two outs.

vbap in the externals collection from sourceforge isn't compiling for me on debian unstable linux : I keep getting errors like this: 1: warnings being treated as errors vbap.c: In function vbap': vbap.c:137: warning:winner_set' might be used uninitialized in this function

If I initialise these variables to zero, I keep getting more uninitailised variable errors, once I have initialised them all

Error 2 in define_loudpeakers.c with no line number... nothing.

I tried removing some of the warning flags in the makefile, but this is a bit above my head.

the precompiled vbap.pd_linux is loaded by pd but there is no precompiled define_loudspeakers.pd_linux so I can not use the object.

<rant> couldn't somebody put pan or spacialize or something with the vbap name somewhere. I mean there is not even a readme saying what vbap does</rant>

I have also tried audience~ but I don't need a gui and the install script from the makefile doesn't put the images speaker.gif and wander.gif in a place where the audience~ object can find them. I have tried moving the images around from pd/externs/audience~/ to pd/externs to pd/bin but I always get couldn't open "speaker.gif": no such file or directory

Thanks for any pointers,

--Marco

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Thanks to everyone who replied.

I modified the code to pan~ from the motex externals to implement the algorithm by Michael Gogins found here: http://www.csounds.com/ezine/autumn1999/beginners/ (thanks steven)

It makes a powerful wrap around your head kind of pan which is just what I was looking for :)

I only changed two lines in the source code but if you want to play around with it I put the code up here: http://metm.org/pd/pan_gogins~.tgz

Thanks again,

--Marco