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Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1438430-audiounitrender
ioData. On input, the audio buffer list that the audio unit is to render into. On output, the audio data that was rendered by the audio unit. The AudioBufferList that you provide on input must match the topology for the current audio format for the given bus. The buffer list can be either of these two variants: If the mData pointers are non ...
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/audiounitrenderactionflags
AudioUnitRenderActionFlags | Apple Developer Documentation Structure Audio Unit Render Action Flags Flags for configuring audio unit rendering. Language Swift Objective-C Availability iOS 10.0+ iPadOS 10.0+ macOS 10.12+ Mac Catalyst 13.0+ tvOS 10.0+ Framework Audio Toolbox On This Page Declaration Overview Topics Relationships See Also Declaration
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/audiounitrendercontext
Overview. When the thread context of a rendering operation changes, the system packages the new rendering context information in an Audio Unit Render Context structure and passes it to the AURender Context Observer block of any associated Audio Unit app extensions.
AudioUnitRenderActionFlags Enum (AudioUnit) | …
https://docs.microsoft.com/en-us/dotnet/api/audiounit.audiounitrenderactionflags
An enumeration whose values specify configuration flags for audio-unit rendering. This enumeration has a FlagsAttribute attribute that allows a …
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/audiounitrenderactionflags/kaudiounitrenderaction_outputissilence
This flag can be set in a render input callback (or in the audio unit's render operation itself) and is used to indicate that the render buffer contains only silence.
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/kaudiounitproperty_shouldallocatebuffer
If the audio unit is always going to be pulled for audio with the client providing audio data buffers to the AudioUnitRender call, then it will never need to create an audio buffer on the output side. So, this property can be used to control the default allocation strategy of an audio unit. If the audio unit needs a buffer, but one hasn't been ...
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1440259-audiounitaddrendernotify
Discussion. The registered callback function is called both before the audio unit performs its render operations (when the render flag’s pre-render bit is set) and after the audio unit has completed its render operation (the render flag’s post-render bit is set).
The Audio Unit - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/TheAudioUnit/TheAudioUnit.html
The Audio Unit. When you develop an audio unit, you begin with the part that performs the audio work. This part exists within the MacOS folder inside the audio unit bundle as shown in Figure 1-2.You can optionally add a custom user interface, or view, as described in the next chapter, The Audio Unit View. In this chapter you learn about the architecture and …
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1439607-audiounitreset
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core audio - How to use iOS AudioUnit ... - Stack Overflow
https://stackoverflow.com/questions/8259944/how-to-use-ios-audiounit-render-callback-correctly
The problem with this AudioUnit is the use of a render callback (as far as I know, the only way to output sound). From Apple's developer documentation: … render callbacks have a strict performance requirement that you must adhere to. A render callback lives on a real-time priority thread on which subsequent render calls arrive asynchronously.
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