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audio

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.07 sec.

The range of frequencies within human hearing, which is approximately 20Hz at the low end to a high of 20,000Hz. However, pundits claim that some people can hear higher frequencies.

Analog
Traditional audio devices are analog, because they handle sound waves in an analogous form. For example, radios maintain the audio signal as rippling waves from antenna to speaker. Tape cassette players record sound waves as magnetic waves. In the days of the phonograph record, sound waves were literally "carved" into the plastic platters.

Digital
In the computer, audio is processed by converting the analog signal into a digital code using PCM. See A/D converter, PCM and sampling.

(file format)audio - Sound, one component of multimedia. Computers (and audio compact discs and digital audio tape) work with digital audio, in contrast to vinyl disks or analogue tape.
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recently released Version 9 of its popular PowerTracks Pro Audio sequencing software for Windows with a "new look" workspace, automatic audio harmonies and more than thirty other new features for seamlessly integrated MIDI/digital audio music production.
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The audio replay will be available through Wednesday, March 7, 2007, by dialing 888-286-8010; passcode: 44872424.
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