Audio refers to the human hearing range , which includes the sound wave range from 16 Hz to 20 kHz. This area is subject to the human hearing characteristics and is strongly age-dependent in the upper part. The audible upper frequency limit can drop to 10 kHz and below with age. Auditory perceptions are normally based on sound events of any semantic content of (phonetic) languages , noises or music . (For auditory perceptions without a physical correlate, see Universals of Music Perception , Psychoacoustics, or Tinnitus .)
With the spread of music systems, the term audio became common as an abbreviation for audio system and is mainly used to distinguish pure music and sound applications from image and film applications ( video , home cinema ).
An audio signal , also known as a sound signal, is an electrical signal that conveys acoustic information. In many entertainment electronics devices , the term audio signal is also used to distinguish it from the video signal , which transports image information.
In cinema, video and DVD films, a distinction is made between the audio track (several tracks for additional languages) and film tracks (the image data). Each audio track can contain one (mono) or several audio channels (stereo: left, right).
AUDIO is the name of a month from the WEKA Media Publishing published magazine , posing as test and guide magazine for topics high fidelity , surround sound , high-end and music understands. It was founded in 1978.
- Michael Dickreiter, Volker Dittel, Wolfgang Hoeg, Martin Wöhr: Manual of the recording studio technology . 7th completely revised and expanded edition, published by ARD.ZDF medienakademie, Nuremberg, 2 volumes, publisher: KG Saur, Munich 2008, ISBN 3-598-11765-5 or ISBN 978-3-598-11765-7 .
- Stefan Weinzierl (Ed.): Handbook of audio technology. Springer Verlag, Berlin 2008, ISBN 978-3-540-34300-4 .
- Roland Enders: The home recording manual . 3rd edition, Carstensen Verlag, Munich 2003, ISBN 3-910098-25-8 .
- Media data 2016. (PDF) WEKA Media Publishing GmbH, accessed on August 8, 2016 .