setVoiceProcessingEnabled and Cardioid

Anyone (dear Apple friends preferrably) know if the new AVAudioEngine setVoiceProcessingEnabled turns on Cardioid, or if not, how to turn it on with voice processing ? The datasources collectoin for the port seemed to have been set to the [], so you cant call setPreferredPolarPattern as before...


I was thinking under some circumstances, voiceProcessing would want Cardioid set anyway, but not all, hence the question.


Please send help.


- John Burkey

Brighten.AI