One more thing I just realized, in order to use ambisonics sound, you need to have purchased the hardware from us (which includes a Mac Mini) that is necessary to generate the sound effects:
http://www.worldviz.com/products/peripherals/sound.html - it is not possible to use ambisonics with the sound card built into a PC. You can still do 3D sound, but it is not ambisonic and it is limited to what your sound card is capable of.
regards,
Wayne