Hi As far as I know, if the four loudspeakers are to be located each in one corner of a square, the VBAP technique is completely equivalent to intensity panning using cosine-sine functions(the so called tangent law). I donŽt know in detail your project but perhaps is easier to you to do intensity panning using this technique instead of VBAP in this particular case. VBAP is specially useful if you are to use an irregular 3D setup of loudspeakers. Best Isi

--- Ben Carney bfcarney@gmail.com wrote:

Hello all,

Vbap is confusing me. I have looked through the

vbap_help patches but i am still not sure what is going on. My final goal is to have pd communicating with the CAVE environment using the programming language ygdrasil and motion trackers. Objects in this 3d world will react to the users motion and position and adjust the sound emitted. this will be a four channel setup, with speakers at each 4 corners of the room. Can anyone give any suggestions on where to start or does anyone know of any patches I could begin taking apart?

thanks much in advance.

• Ben C.

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