Re: [LAU] ambidec: number of speakers and sound card configurations

One question I forgot to ask regarding layout of an ambisonic system. Rather than deal with all the trouble of routing audio and placing speakers at the periphery of the listening area, is it possible to employ a concept similar to the Eigenmike ( http://www.mhacoustics.com/mh_acoustics/Eigenmike_microphone_array.html ) but instead have an "EigenSpeaker" with 24 small full-range speakers mounted on the surface of a sphere in the center of a large room? Such a configuration would be easier to setup, because all the connections and DSP/processing/amplifiers/speakers could be kept in a central area. The question, is it possible to have a torus shaped sweet spot for the audience surrounding the "EigenSpeaker" ? Niels http://nielsmayer.com