Semiconductor chips used for processing digital signals; integrated circuits, computer hardware and computer software for controlling and improving the sound of computers and audio equipment; computer application software, namely, downloadable mobile device software used for controlling, managing, editing, processing, personalizing, enhancing, and improving sound; Downloadable computer programs for controlling, managing, editing, processing, personalizing, enhancing, and improving sound via a global computer network; portable computer hardware for controlling and improving the sound of audio equipment; apparatus for processing audio and visual signals, namely, apparatus for the processing of sound or images; sound recording apparatus; sound reproduction apparatus; sound transmitting apparatus; pre-recorded digital media devices and pre-recorded electronic media devices featuring interactive sound and visual recordings in the nature of music and images, audio, video and audio-visual content in the fields of personal gaming and music; interactive computer game software; amplifiers; MP3 players; MP4 players; sound cards; earphones; headphones; headphone systems consisting of headphones, stereo cables and amplifiers; subwoofers; loud speakers; wireless speakers; USB hubs and USB dongles, remote controls for radios, televisions, and personal, portable and home stereos; instrument and materials for transmitting, receiving, recording sound and visual images, namely, digital media streaming devices; digital music downloadable from the Internet and global communications networks