Digital telephone interface circuits; telecommunication switches; electric control panels; transceivers; communications servers; audio signal processors; equipment for broadcasting stations, namely, codecs, audio mixing consoles, telephone interface modules, audio/video equipment, namely, routing switchers, electronic circuits, namely, audio circuits and video circuits, telephone hybrids, namely, 2-wire to 4-wire converters and 4-wire to 2-wire converters, computer-based audio recording, processing, editing, and/or playback units, and computer software for controlling and managing server applications for use in connection with the foregoing; computer hardware and software used to distribute multiple channels of multi-media data over a computer network to other devices; electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; electronic hardware and software for audio processing, namely, for upmixing audio, downmixing audio, encoding audio, decoding audio, and managing audio metadata; electronic hardware and software for audio processing, namely, for managing audio and loudness issues; all of the foregoing primarily for use in connection with professional grade audio equipment and/or professional grade telephony equipment, and excluding products outside of the broadcasting field for identity and authentication services, information assurance, namely, information authentication, integrity, and non-repudiation, and cybersecurity