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Core Audio - Apple Developer

https://developer.apple.com/documentation/coreaudio

Build a virtual audio device by creating a custom driver plug-in. Building an Audio Server Plug-in and Driver Extension Create a plug-in and driver extension to support an audio device in macOS.

What Is Core Audio? - Apple Developer

https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/WhatisCoreAudio/WhatisCoreAudio.html

Core Audio is tightly integrated into iOS and OS X for high performance and low latency. In OS X, the majority of Core Audio services are layered on top of the Hardware Abstraction Layer (HAL) as shown in Figure 1-1. Audio signals pass to and from hardware through the HAL. You can access the HAL using Audio Hardware Services in the Core Audio ...

Core Audio Services - Apple Developer

https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/WhatsinCoreAudio/WhatsinCoreAudio.html

Core Audio in OS X includes those frameworks and adds three more: Core Audio Kit—Audio unit user-interface services. Core MIDI—Application-level MIDI support. Core MIDI Server—MIDI server and driver support. For a framework-focused view of the header files in Core Audio, see the Appendix Core Audio Frameworks.

Core Audio Essentials - Apple Developer

https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html

Core Audio in iOS supports most of these services, as shown in Figure 1-2. The highest layer in Core Audio includes streamlined interfaces that combine features from lower layers. Audio Queue Services lets you record, play, pause, loop, and synchronize audio. It employs codecs as necessary to deal with compressed audio formats.

Core Audio | Apple Developer Forums

https://developer.apple.com/forums/tags/core-audio

Hi, I've problem with an AU host (based on Audio Toolbox/Core Audio, not AVFoundation) when running on macOS 11 or later and Apple Silicon – it crashes after some operations in GUI. The weird is, it crashes in IOThread. Could this be caused by some inappropriate operation in GUI (eg. outside the main thread) that effects the IOThread?

Introduction - Apple Developer

https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/Introduction/Introduction.html

Core Audio Overview is for all developers interested in creating audio software. Before reading this document you should have basic knowledge of general audio, digital audio, and MIDI terminology. You will also do well to have some familiarity with object-oriented programming concepts and with Apple’s development environment, Xcode.

Coreaudio issues High Sierra | Apple Developer Forums

https://developer.apple.com/forums/thread/86582

So, in summary: My late 2013 MacBook Air has zero issues from the first Beta onwards (at least with audio). Mid 2011 has not had Audi I/O devices since the start. - Formatted and rolled back to Sierra, audio comes back. - Waited until a later release of Beta, clean installed, no audio I/O. - Multiple PMU/PRAM resets, nothing.

no sound monterey - Apple Community

https://discussions.apple.com/thread/253320047

AdamPressman wrote: Since Monterey update my 2016 4 Thunderbird 13" Macbook Pro has lost the Core audio device. Sound "select a device for" choices are only the Airplay for output or nothing for input.

Digidesign CoreAudio Driver - Free download and …

https://download.cnet.com/Digidesign-CoreAudio-Driver/3000-2120_4-43417.html

The Digidesign CoreAudio Driver is a multi-client, multichannel sound driver that allows CoreAudio-compatible applications to record and play back through the following Digidesign audio interfaces:

OBS-Studio: Enable CoreAudio AAC encoder (Windows)

https://obsproject.com/forum/resources/obs-studio-enable-coreaudio-aac-encoder-windows.220/

First of all, if you have iTunes or QuickTime installed, chances are you are already using the CoreAudio AAC encoder in OBS-Studio.But if you normally do not use or install any of those, there is another way to enable it. All we need is the Apple Application Support, for 32 or 64bit depending on the OBS Studio version you use.

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