APPARATUS FOR USE IN PROCESSING AUDIO ELECTRONIC SIGNALS TO ENCODE MULTI-TRACK AUDIO INFORMATION INTO A LIMITED NUMBER OF AUDIO TRACKS, AND TO DECODE A LIMITED NUMBER OF AUDIO TRACKS INTO MULTI-TRACK AUDIO, OR SURROUNDSOUND 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 RECORDING APPARATUS; AUDIO PLAYBACK AND/OR RECORDING APPARATUS; HOME AUDIO-VISUAL RECORDING APPARATUS; DIGITAL VIDEO DISC (DVD) PLAYERS; LASER DISC PLAYERS AND RECORDERS; VCRS; DIGITAL VIDEO TAPE PLAYERS; SPEAKERS; SPEAKER SYSTEMS CONTAINING A SOUND TRANSDUCER AND AN INTEGRAL AMPLIFIER; CD (COMPACT DISC) PLAYBACK AND/OR RECORDING DEVICES; 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, NAMELY COMPUTER DISKETTES, COMPUTER FLOPPY DISKS, HARD DISCS, CD-ROM DISCS, DIGITAL VIDEO DISCS, OPTICAL STORAGE DISCS, AND COMPUTER SOLID-STATE CARTRIDGES; 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, 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