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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.
Wikipedia. : Spoken articles. This page lists recordings of Wikipedia articles being read aloud, and the year each recording was made. Articles under each subject heading are listed alphabetically (by surname for people). For help playing Ogg audio, see Help:Media. To request an article to be spoken, see Category:Spoken Wikipedia requests. For ...
Audio file format. An audio file format is a file format for storing digital audio data on a computer system. The bit layout of the audio data (excluding metadata) is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression. The data can be a raw bitstream in an audio coding ...
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, samples are taken 44,100 times per second, each with 16-bit sample depth.
The history of sound recording - which has progressed in waves, driven by the invention and commercial introduction of new technologies — can be roughly divided into four main periods: Experiments in capturing sound on a recording medium for preservation and reproduction began in earnest during the Industrial Revolution of the 1800s.
Timeline of audio formats. An audio format is a medium for sound recording and reproduction. The term is applied to both the physical recording media and the recording formats of the audio content —in computer science it is often limited to the audio file format, but its wider use usually refers to the physical method used to store the data.
MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) [4] is a coding format for digital audio developed largely by the Fraunhofer Society in Germany under the lead of Karlheinz Brandenburg, [11] [12] with support from other digital scientists in other countries.
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 roughly 20 to 20,000 Hz, which corresponds to the lower and upper limits of human hearing.