Anton Woldhek wrote:

Hello list,

I was wondering if anybody has implemented the ambisonics algorythm in a pd external yet. I recently heard a great composition (tape) utilizing the

<rant>here comes the advertising shit</rant>

we (that is: the iem) have implemented ambisonics algorithms since at least 2002 (btw, that's when i finished my diploma on ambisonics using pd)

although i have to admit that a lot of our realisations are _not_ within a pd external, because the algorithm itself is quite simple and can be build with normal pd-objects. however, zexy's matrix-objects (which are now in iemmatrix) were originally created to ease the task of en-/decoding ambisonic signals.

so i'd suggest searching the iem.at-homepage for something like ambisonics: basically all implementations of spatialization-engines we have done within the last years are realtime and done with pd.

my original implementation of a 3D-ambisonics renderer "abcde" can be found at http://sf.net/projects/iem (just check out the "abcde" module from the sf-cvs) a binaural rendering system using ambisonics (with head tracking and other fancy stuff) written by thomas musil should be available as OpenSource soon.

<rant>thanks for your patience</rant>

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