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Encyclopedia > Audio Units
AU Lab, a developer application included on Mac OS X's installer CD

Audio Units (AU) are a system-level plug-in architecture provided by Core Audio, a set of application programming interface services provided by Apple Computer's Mac OS X operating system. Those services allow to generate, process, receive, or otherwise manipulate streams of audio. Image File history File links Size of this preview: 800 × 417 pixelsFull resolution (1343 × 700 pixel, file size: 260 KB, MIME type: image/png) AU Lab, a Developer app that comes with Mac OS X to investigate Audio Units. ... Image File history File links Size of this preview: 800 × 417 pixelsFull resolution (1343 × 700 pixel, file size: 260 KB, MIME type: image/png) AU Lab, a Developer app that comes with Mac OS X to investigate Audio Units. ... A plugin (or plug-in) is a computer program that can, or must, interact with another program to provide a certain, usually very specific, function. ... Apples Core Audio interfaces Core Audio is a fairly low-level API for dealing with sound in Apples Mac OS X operating system. ... API and Api redirect here. ... Apple Inc. ... Mac OS X (IPA: ) is a line of graphical operating systems developed, marketed, and sold by Apple Inc. ... // An operating system (OS) is the software that manages the sharing of the resources of a computer. ...


Usage

Mac OS X comes with Audio Units allowing to timestretch an audio file, convert its sample rate and stream audio over a Local Area Network. It also comes with a collection of AU plug-ins such as EQ filters, dynamic processors, delay, reverb, and a Soundbank Synthesizer Instrument. Time stretching is the process of changing the speed or duration of an audio signal without affecting its pitch. ... The sampling frequency or sampling rate defines the number of samples per second taken from a continuous signal to make a discrete signal. ... “LAN” redirects here. ...

AUDelay, an Apple AU plug-in inluded in Mac OS X

AU are used by Apple applications such as GarageBand, Soundtrack Pro, Logic Express, Logic Pro, Final Cut Pro and most 3rd party audio software developed for Mac OS X. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... GarageBand is a software application that allows users to create music or podcasts. ... Soundtrack Pro is a music composing and audio editing application made by Apple Inc. ... Logic Express is a cut-down version of Logic Pro, a MIDI sequencer and digital audio workstation software application maintained by Apple that runs on the Mac OS X platform. ... Logic Pro is a MIDI sequencer and Digital Audio Workstation software application that runs on the Mac OS X platform. ... Final Cut Pro is a professional non-linear editing system developed by Apple Inc. ...


See also

Apples Core Audio interfaces Core Audio is a fairly low-level API for dealing with sound in Apples Mac OS X operating system. ...

External links

  • Apple's Audio Unit Programming Guide
  • Apple's Core Audio Overview
  • Apple's Audio Units trademark and license agreements

  Results from FactBites:
 
Turning Up the Volume with Audio Units (2973 words)
Audio Units is Apple's audio plug-in technology that allows you to create audio effects and virtual instruments for Apple applications such as GarageBand, Soundtrack, Logic and Final Cut Pro, as well as a multitude of popular third-party applications and systems.
Properties are used to configure an Audio Unit, and the property mechanism is used to pass values to and from an Audio Unit.
Audio Unit Effect Templates which are available separately from the SDK at the time of this writing.
Software Licensing & Trademark Agreements: Audio Units (274 words)
Have you created a compliant audio unit or audio unit hosting application for Mac OS X? Tell the world by using the Audio Units logo.
Use of this application is subject to the terms of the Validation Tool License (PDF) presented upon launch.
Email the Validation Tool output form to Software Licensing and include a note stating that the agreement form is on its way via post.
  More results at FactBites »


 

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