apparatus for use in processing audio electronic signals to create an expanded audio image from playback of the audio signals through speakers and/or headphones; multi-channel sound processors; audio playback and/or recording apparatus; stereo and multi-channel receivers and amplifiers; radios; tape decks; car stereos; speakers; speaker systems containing a sound transducer and an integral amplifier; portable stereos; boomboxes; stereo processors for use in cinemas; televisions; video monitors; video tuners; home audio-visual recording apparatus; VCRs; CD, VCD, laser disc, video disk, digital video tape, and DVD playback and/or recording devices; motion picture projectors; cable television receivers and decoders; set top boxes, namely, receivers for digital modulated TV signals transmitted via satellite or cable; remote control units for the foregoing; audio and/or audio-visual prerecorded media containing entertainment material in the form of the spoken word, music and other sounds, namely motion picture film, VCR cassette tapes, laser discs, video discs, optical discs, analog or digital audio cassette tapes, and analog or digital video cassette tapes; computer programs for supporting sound generating capabilities in personal computers; computer software for expanding an audio image generated by speakers and/or headphones; computers; integrated circuits; computer sound processing cards; computer audio processing circuitry; computer game software; game console machines for use with computers and televisions; arcade game and coin-operated video game hardware and software