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 roughly 20 to 20,000 Hz, which corresponds to the lower and upper limits of human hearing . Audio signals may be synthesized directly, or may originate at a transducer such as a microphone , musical instrument pickup , phonograph cartridge , or tape head . Loudspeakers or headphones convert an electrical audio signal back into sound.
12-459: [REDACTED] Look up audio in Wiktionary, the free dictionary. Audio most commonly refers to sound , as it is transmitted in signal form. It may also refer to: Sound [ edit ] Audio signal , an electrical representation of sound Audio frequency , a frequency in the audio spectrum Digital audio , representation of sound in
24-511: 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 [ edit ] AUDIO (group) , an American R&B band of 5 brothers formerly known as TNT Boyz and as B5 Audio (album) , an album by
36-592: 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 [ edit ] AUDIO (group) , an American R&B band of 5 brothers formerly known as TNT Boyz and as B5 Audio (album) , an album by
48-435: Is determined by the impedance of the signal path. Signal paths may be single-ended or balanced . Audio signals have somewhat standardized levels depending on the application. Outputs of professional mixing consoles are most commonly at line level . Consumer audio equipment will also output at a lower line level. Microphones generally output at an even lower level, known as mic level . The digital form of an audio signal
60-441: Is different from Wikidata All article disambiguation pages All disambiguation pages audio [REDACTED] Look up audio in Wiktionary, the free dictionary. Audio most commonly refers to sound , as it is transmitted in signal form. It may also refer to: Sound [ edit ] Audio signal , an electrical representation of sound Audio frequency ,
72-428: Is different from Wikidata All article disambiguation pages All disambiguation pages Audio signal Digital audio systems represent audio signals in a variety of digital formats. An audio channel or audio track is an audio signal communications channel in a storage device or mixing console . It is used in operations such as multi-track recording and sound reinforcement . Signal flow
84-551: Is the path an audio signal will take from source to the speaker or recording device. Signal flow may be short and simple as in a home audio system or long and convoluted in a recording studio and larger sound reinforcement system as the signal may pass through many sections of a large mixing console, external audio equipment , and even different rooms. Audio signals may be characterized by parameters such as their bandwidth , nominal level , power level in decibels (dB), and voltage level. The relationship between power and voltage
96-455: Is used in audio plug-ins and digital audio workstation (DAW) software. The digital information passing through the DAW (i.e. from an audio track through a plug-in and out a hardware output) is an audio signal. A digital audio signal can be sent over optical fiber , coaxial and twisted pair cable. A line code and potentially a communication protocol are applied to render a digital signal for
108-543: 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 [ edit ] HTML audio , identified by the <audio> tag See also [ edit ] Acoustic (disambiguation) Audible (disambiguation) Audiobook Radio broadcasting Sound recording and reproduction Sound reinforcement Topics referred to by
120-480: 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 [ edit ] HTML audio , identified by the <audio> tag See also [ edit ] Acoustic (disambiguation) Audible (disambiguation) Audiobook Radio broadcasting Sound recording and reproduction Sound reinforcement Topics referred to by
132-407: The same term [REDACTED] This disambiguation page lists articles associated with the title Audio . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Audio&oldid=1258150794 " Category : Disambiguation pages Hidden categories: Short description
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#1732854568715144-407: The same term [REDACTED] This disambiguation page lists articles associated with the title Audio . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Audio&oldid=1258150794 " Category : Disambiguation pages Hidden categories: Short description
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