In an answer to the related question, I read "Microphone is not supported in Unity integration yet."
Does this mean the Wwise Audio Input source cannot be used from Unity? Is it still the case today? Would it need to be registered by rebuilding the integration?
I would just like to say that I solved the AKAudioInput to Wwise and made a script to copy/paste on my project blog. I summarize how to do it in a related question https://www.audiokinetic.com/qa/4311/using-akaudioinput-in-unity
Here is the script: https://vraasp.wordpress.com/2018/01/24/getting-real-time-microphone-input-into-wwise-in-unity-using-the-ak-audio-input-plugin-script/