We have collected the most relevant information on Audio Units For Logic 9. Open the URLs, which are collected below, and you will find all the info you are interested in.
Logic Pro 9 - Technical Specifications
https://support.apple.com/kb/SP673?locale=en_US
Support for Logic Pro True Surround plug-ins. Built in multi-mono support lets you use any mono or stereo Logic Pro or Audio Units plug-in. Surround bounce and burn to DVD-A (PCM only) disc. Easy mixdown to stereo and surround formats using Down Mixer plug-in. Video. QuickTime video playback. Embedded or floating window video display.
How to install audio units in logic pro 9 - YouTube
https://www.youtube.com/watch?v=VGYX6SkU_PU
tutorial on how to install audio units within components
Bypass, remove, or rescan Audio Units plug-ins in Logic ...
https://support.apple.com/en-us/HT201199
Resetting Audio Units in Logic Pro also resets them for MainStage. Choose Logic Pro > Preferences > Plug-In Manager. Click Full Audio Unit Reset. Close Logic Pro, then reopen it. Logic Pro rescans all installed Audio Units plug-ins. Check Logic Pro or MainStage to see if the plug-in is available.
Logic Pro 9 hangs when scanning Audio Uni… - Apple Community
https://discussions.apple.com/thread/2641927
+"Logic Pro will now test 40 installed Audio Unit plug-ins to maximize system stability. This AU validation can take some time. Subsequent launches of Logic Pro do not require this test and will be much faster."+ I then get a progress bar and a "Scanning Audio Units (finalized 0 of 40)" box with an abort option.
Using Plug-ins from Other Manufacturers - Apple
https://help.apple.com/logicpro/mac/9.1.6/en/logicpro/usermanual/chapter_10_section_13.html
Choose Logic Pro > Preferences > Audio Units Manager in the main menu bar (or use the Audio Units Manager key command). Manually Enabling Plug-ins Audio Units plug-ins that fail the validation test can be manually activated by selecting the checkboxes in the Logic column—but be aware that these plug-ins can cause problems.
Audio Unit Development? - Logic Pro Help
https://www.logicprohelp.com/forum/viewtopic.php?t=79806
I am trouble figuring out how to start developing Audio Units. It's not so much a programming issue (I have a background in C/C++ and plan on learning Applescript, Cocoa and ObjectiveC) so much as it is figuring out how to work with Core Audio programming within Xcode. ... Logic Pro 9.1.5 - Mac OS 10.7.2 - Core i5 2.4 GHz, 4 GB 1333 MHz DDR3 ...
Scanning Audio Units every time at start up... – Forum ...
https://www.macprovideo.com/forums/convert/42741
Thank you for replying Christian..appreciate it. =) Well, unfortunately Logic X (and 9) still insists on making the "Scanning Audio Units" ritual on all my AU units (as I understand) everytime on start up (oddly the number of them varies from time to time. My AUs are all located as you pointed out in the HD Library>Audio>Plug-ins>Components.
Logic Pro X crashes on Audio Unit scan - Apple Community
https://discussions.apple.com/thread/250446659
Logic Pro X 10.4.5 on Mac OS X 10.14.5 (18F132) crashes every single time when I try to open it. It says "Scanning Audio Units (finalized 0 of 3)" hangs for a few seconds and then crashes. Does anybody have a solution to this? Is there a way to view a log file of what the problem Audio Unit caused the crash (if that was the case)?
Logic Pro X - Always rescans audio units on startup ...
https://logic-users-group.com/threads/always-rescans-audio-units-on-startup.10773/
1.Copy All files from Macintosh HD /Library/Audio/Plug-Ins/Components/. 2.Paste to Macintosh HD/Users/your user name/Library/Audio/Plug-Ins/Components/. 3.Click on Replace All. Next time when you start logic it will scan all audio units only once and the scan wont reoccur in every subsequent startup.
Now you know Audio Units For Logic 9
Now that you know Audio Units For Logic 9, we suggest that you familiarize yourself with information on similar questions.