Electronic signal processor used to create an expanded audio image and for processing audio electronic signals to decode a limited number of audio tracks into multi-track audio or surround sound audio information; surround sound decoders; multi-channel sound processors; integrated circuits; video monitors; video tuners; stereo receivers and amplifiers; tape decks; car stereos; televisions; portable stereos; boomboxes; audio processors for use in cinemas; video disc playback and/or recorder; audio playback and/or recorder; home audio-visual recorders; digital video disc (DVD) players; laser disc players and recorders; VCRs; digital video tape players; audio speakers; speaker systems containing a sound transducer and an integral amplifier; CD (compact disc) players and recorders; motion picture projectors; cable television receivers and decoders; remote control units for these goods; computer programs having sound generating capability; computer software for expanding an audio image generated by speakers for use in the entertainment field; computers; computer sound processing cards; industry standard computer interface cards; computer audio processing circuitry; computer hardware, prerecorded CD-ROM discs, prerecorded digital video discs; audio and/or audio-visual recordings stored on magnetic tape or optical media; audio and/or audio-visual prerecorded media containing entertainment material in the form of the spoken word, music and other sounds, prerecorded motion picture film and prerecorded video discs