DIRECTIONAL SOUND DELIVERY SYSTEMS COMPOSED OF AUDIO HARDWARE COMPONENTS, NAMELY, SPEAKERS ASSEMBLED IN A DIGPOLE CONFIGURATION, OPTIONAL DIRECTIONAL MICROPHONES, DIGITAL SIGNAL PROCESSORS, AUDIO AMPLIFIERS, AND PARTS THEREFOR, AND COMPRISING SOFTWARE THAT OPERATES THE DIRECTIONAL SOUND DELIVERY SYSTEMS, WHICH FEATURES ALGORITHMS FOR USE IN SPEECH AUDIO PROCESSING, WHICH SOUND DELIVERY SYSTEMS ARE INCORPORATED INTO NECK SETS, HEADRESTS, SEATING, KIOSKS, WALL-MOUNTS, AND SEATBELTS