Integrated-circuit chips; recorded computer software and recorded computer programs for the processing of sound for use with loudspeakers; amplifiers; sound-reproducing apparatus, namely, devices and units containing loudspeakers for multi dimensional sound reproduction [ ; phonograph records and prerecorded tapes containing music and/or speech with stereo information and/or multi-channel data streams down mixable to stereo; prerecorded discs and tapes containing sound, images and movies; aud...