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Audio Unit v2 (C) API - Apple Developer

    https://developer.apple.com/documentation/audiotoolbox/audio_unit_v2_c_api
    The Apple audio unit manufacturer code. Audio data format converter audio unit subtypes for audio units provided by Apple. Reserved for system use. Properties for audio units that perform offline processing—that is, processing in a nonplayback, nonrealtime mode. Parameters for instrument units.

Audio Unit - Apple Developer

    https://developer.apple.com/documentation/audiounit
    The Audio Unit framework provides interfaces for hosting either version 2 or version 3 audio units and implementing version 3 audio processing plug-ins known as Audio Unit extensions. Developers implementing version 3 audio units should subclass the AUAudioUnit class. Version 3 Audio Unit extensions can be used on iOS, tvOS, and macOS by host ...

Audio Unit Types - Apple Inc.

    https://developer.apple.com/documentation/audiotoolbox/audio_unit_v2_c_api/1584142-audio_unit_types
    Types. An output unit provides input, output, or both input and output simultaneously. It can be used as the head of an audio unit processing graph. An instrument unit can be used as a software musical instrument, such as a sampler or synthesizer. It responds to MIDI (Musical Instrument Digital Interface) control signals and can create notes.

Audio Unit Component Services - Apple Developer

    https://developer.apple.com/documentation/audiounit/audio_unit_component_services
    Overview. Audio Unit Component Services provides the C interface for using audio units. An audio unit is an audio processing plug-in used for processing or generating audio data. To find, open, and close audio units, you use a companion interface, Audio Component Services, described in Audio Component Services.. An audio unit is uniquely identified by a triplet of codes known as …

Introduction - Apple Developer

    https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/Introduction/Introduction.html
    See Also. As you learn about developing audio units, you may find the following information and tools helpful: The coreaudio-api mailing list, a very active discussion forum hosted by Apple that covers all aspects of audio unit design and development.. Audio Unit framework API documentation (preliminary), available from the Audio Topic page on Apple’s developer website.

Migrating Your Audio Unit Host to the ... - Apple Developer

    https://developer.apple.com/documentation/audiotoolbox/audio_unit_v3_plug-ins/migrating_your_audio_unit_host_to_the_auv3_api
    A key difference between the two audio unit API versions is that AUv2 audio units are loaded into the host's process, whereas AUv3 audio units are loaded out-of-process by default. In macOS only, if supported by the AUv3 audio unit, you can request loading it in-process by passing the load In Process option in the options argument.

Audio Unit Parameters - Apple Developer

    https://developer.apple.com/documentation/audiounit/audio_unit_parameters
    An audio unit parameter is a key, defined by the audio unit it applies to, whose corresponding value specifies the setting for an adjustable attribute such as volume, pitch, or filter cutoff frequency. Parameters are typically varied by the user during audio processing, by way of a user interface that you provide. All parameter values are of ...

Audio - Apple Developer

    https://developer.apple.com/audio/
    Apple platforms provide a comprehensive set of audio frameworks and technologies that are essential to creating a rich app experience. Use them to immerse your users in multichannel audio with spatial rendering, process sound in realtime using AVAudioEngine, and engage the creativity of enthusiasts and professionals through Audio Unit Extensions.

Audio Unit Extensions - Apple

    https://devstreaming-cdn.apple.com/videos/wwdc/2015/508691kyzp/508/508_audio_unit_extensions.pdf?dl=1
    Audio Units Since OS X 10.0, iOS 2.0 OS includes many units • I/O, mixers, effects, more • Used in higher-level API’s (e.g. media playback) 3rd-party plug-ins (OS X)

GitHub - apple/AudioUnitSDK: AudioUnit SDK

    https://github.com/apple/AudioUnitSDK
    The AudioUnitSDK contains a set of base classes as well as utility sources required for Audio Unit development. These utility classes extend or wrap Core Audio API’s providing developers with the essential scaffolding to create audio effects, instruments, and generators on Apple platforms. They provide an easier to implement C++ class model ...

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