Audio most commonly refers to sound, as it is transmitted in signal form. It may also refer to: Sound Audio signal, an electrical representation of sound Audio frequency, a frequency in the audio spectrum Digital audio, representation of sound in a form processed and/or stored by computers or digital electronics Audio, audible content (media) in audio production and publishing Semantic audio, extraction of symbols or meaning from audio Stereophonic audio, method of sound reproduction that creates an illusion of multi-directional audible perspective Audio equipment Entertainment AUDIO (group), an American R&B band of 5 brothers formerly known as TNT Boyz and as B5 Audio (album), an album by the Blue Man Group Audio (magazine), a magazine published from 1947 to 2000 Audio (musician), British drum and bass artist "Audio" (song), a song by LSD Computing , an HTML element, see HTML5 audio See also Acoustic (disambiguation) Audible (disambiguation) Audiobook Radio broadcasting Sound recording and reproduction Sound reinforcement