Audio most commonly refers to

sound In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the ...

, as it is transmitted in signal form. It may also refer to:

Sound

Audio signal An audio signal is a representation of sound, typically using either a changing level of electrical voltage for analog signals, or a series of binary numbers for digital signals. Audio signals have frequencies in the audio frequency range of r ...

, an electrical representation of sound *

Audio frequency An audio frequency or audible frequency (AF) is a periodic vibration whose frequency is audible to the average human. The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. The generally accepted ...

, a frequency in the audio spectrum *

Digital audio Digital audio is a representation of sound recorded in, or converted into, digital form. In digital audio, the sound wave of the audio signal is typically encoded as numerical samples in a continuous sequence. For example, in CD audio, sa ...

, representation of sound in a form processed and/or stored by computers or digital electronics *Audio, audible

content (media) Content is the information contained within communication media. This includes internet, cinema, television, radio, audio CDs, books, magazines, physical art, and live event content. It’s directed at an end-user or audience in the sectors of ...

in audio production and publishing *

Semantic audio Semantic audio is the extraction of meaning from audio signals. The field of semantic audio is primarily based around the analysis of audio to create some meaningful metadata, which can then be used in a variety of different ways. Semantic Analysis ...

, extraction of symbols or meaning from audio *

Stereophonic audio Stereophonic sound, or more commonly stereo, is a method of sound reproduction that recreates a multi-directional, 3-dimensional audible perspective. This is usually achieved by using two independent audio channels through a configuration ...

, method of sound reproduction that creates an illusion of multi-directional audible perspective *

Audio equipment Audio equipment refers to devices that reproduce, record, or process sound. This includes microphones, radio receivers, AV receivers, CD players, tape recorders, amplifiers, mixing consoles, effects units, headphones, and Speaker (audio equipmen ...

Entertainment

AUDIO (group) B5, previously known as TNT Boyz and Audio, is an American R&B group originating from St. Petersburg, Florida, which later relocated to Atlanta, Georgia. The group consists of the five Breeding family brothers, Dustin Michael (b. October 8, 1 ...

, 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) Gareth Greenall, better known by his stage name Audio, is a British DJ and producer from Redhill, UK. Currently signed to RAM Records and his own label Snake Pit Records, he has released three albums on Virus Recordings. Greenall is also ...

, British drum and bass artist * "Audio" (song), a song by LSD

Computing

*, an HTML element, see

HTML5 audio HTML5 Audio is a subject of the HTML5 specification, incorporating audio input, playback, and synthesis, as well as speech to text, in the browser. <audio> element The element represents a sound, or an audio stream. It is commonly used ...

Sound

Entertainment

Computing

See also