Software; interfaces software; apparatus for recording, transmission, reproduction or processing of sound or images; loudspeaker cabinets; amplifiers, loudspeakers, radio apparatus, mixing consoles, sound data processors and converters, electro-acoustic apparatus, microphones, home cinema, car radios, smartphones, tablets, computers; telecommunication apparatus, magnetic data carriers, acoustic or optical discs; CD drives, DVD drives, high-fidelity sound systems, televisions, video projectors; connection stations for digital players; audio and video equipment (apparatus), apparatus, components and accessories (namely microprocessors and electronic power supply) used for the production, processing, measuring, analyzing, recording, amplification, improvement, production, reproduction, transmission, storage, checking, testing, receiving and playing of audio signals, files and sounds and visual signals, files and images; sound cards; motherboard; apparatus and software for the improvement of analog and digital sound for the processing, recording, reproduction, streaming, transmission and reception of electronic or digital signals; computer programs, software, computer hardware and computer components and other digital devices used for the creation, processing, measuring, analysis, recording, amplification, improvement, reproduction, transmission, control, testing, reception and playing of signals, audio and sound files, and signals, visual files and images; computer programs and software for encoding and decoding voice and audio signals; computer hardware and software for the processing, recording, reproduction, distribution, streaming, transmission and reception of electronic or digital signals; multi-channel sound processors, video processors and sound processors; equipment (apparatus) for alignment and testing for audio and video equipment for the processing, recording, reproduction, diffusion, streaming, transmission and reception of electronic or digital signals; digital signal processing chips; printed circuit boards; graphics cards; graphic processors; magnetic, optical and digital recording media