# How to be notified when offline rendering starts

**URL:** <https://forum.juce.com/t/how-to-be-notified-when-offline-rendering-starts/43800>\
**Category:** Audio Plugins\
**Created:** [January 13, 2021, 7:52am UTC](https://forum.juce.com/t/how-to-be-notified-when-offline-rendering-starts/43800 "2021-01-13T07:52:34Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![daniel](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daniel/32/790_2.png) [@daniel](https://forum.juce.com/u/daniel)\
**Post date:** [January 13, 2021, 9:00pm UTC](https://forum.juce.com/t/how-to-be-notified-when-offline-rendering-starts/43800/7 "2021-01-13T21:00:44Z")

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The AudioSuite is a separate interface, the API is in AAX\_CHostAudioProcessor (it’s been a while since I dug into the API, didn’t do much ProTools lately). So you can render through the normal processBlock() calls, but the analyze ender pass is not available. You have to code that manually, or resort to the fork from Soundradix:

> [@AAX Analyze](https://forum.juce.com/t/aax-analyze/30465):
>
> Hey, how can I add the analyze button and process (like Nugen LMCorrect or the “learn” button on RX Ambience Match) to my AAX plugin using JUCE AAX wrapper? Is it possible? Is it worth the effort? Thanks.

> [@AAX\_CHostProcessor support](https://forum.juce.com/t/aax-chostprocessor-support/28640/4):
>
> Hi, Since we needed this in Sound Radix, we’ve added AAX AudioSuite (CHostProcessor) support to JUCE 4 & 5. [soundradix/juce5](https://github.com/soundradix/juce/tree/juce5) is pretty much on par with 5.x develop branch. [soundradix/master](https://github.com/soundradix/juce) is currently 4.3.1. Remember! CHostProcessor behaves different than Native AAX running with AudioSuite property (for example: input number will be your maximum supported if in multi-input mode or mono). It was tested on Pro Tools 10.3.10 (32-bit) and Pro Tools 2018 (64-bit). (it doesn’t support olde…

I am not aware that there was something added to official juce, but I might be wrong on that.

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