My convolver supports multichannel. I use APH to test from time to time. I typically set
maxChannelsOfNamedLayout = 128 in juce_AudioChannelSet.h, recompile and test it out, mostly on Mac using the Audio Unit plugin.
This worked on Juce 7.0.5, but I noticed a number of fixes on develop, and brought those down, recompiled on a Mac M1, Xcode 14.2 and Ventura 13.4.
Now I see the VST3 plugin support up to 7th order Ambisonics (untested):
But the AU plugin only supports up to 3rd order Ambisonics:
I need 32 channels from the AU. Any ideas? Thanks.