Re: creating au plugin for custom synth??? need some help

Subject: Re: creating au plugin for custom synth??? need some help
From: Jeremy Friesner <email@hidden>
Date: Mon, 13 Apr 2015 15:09:48 -0700

On Mon, 13 Apr 2015 17:55:52 -0400, Steven Brawer <email@hidden> wrote:

[…]

I don't want C++ classes (I'm not using C++), I don't want convenience routines. All these things are just wrappers around C (objective C) functions. I want the relevant functions.

I think you may be out of luck here. From Apple’s Audio Unit development guide (at https://developer.apple.com/library/mac/documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/Introduction/Introduction.html ):

To go forward in developing your own audio units based on what you learn here, you will need:
The ability to develop plug-ins using the C++ programming language, because the audio unit class hierarchy in the Core Audio SDK uses C++.

In particular, my understanding is that Objective C cannot give very strong real-time guarantees, due to dynamic binding issues, and that is why Apple chose to write the AudioUnit API in C++ instead. AFAIK there is no underlying Objective C API for that reason.

https://mikeash.com/pyblog/why-coreaudio-is-hard.html

http://www.kvraudio.com/forum/viewtopic.php?t=259182

Jeremy

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