However, I can’t seem to figure out how to achieve this using JUCE as no methods are available. It’s no problem doing this for a macOS application, but iOS always returns “iOS Audio” as the input and output device names (evidently this is a hardcoded string in JUCE).
I think this would make a good feature request . I would expect JUCE to offer a method to select the microphone input on iOS, given that it is a framework focused on audio.