Does IOS Dictation Database Contain “UGH”
Ugh / huh / aah is easily produced by dictation from similar sounds even in an exceptionally quiet environment with clear diction. (i.e. Works on iPad and Apple Watch and iPhone for me.)
How Apple engineered the system is probably a lot more complicated than you’ve written, but there’s no technical gotcha I can see that would reinforce any mistrust of said person.
In my experience, Siri is extremely flexible with accents and has to juggle many inputs / guess contextually what a sound actually means to produce text that in the end looks identical to a very intentionally typed statement.
For decades to come I think we all will continue to be part of experiments to help Apple wreck a nice beach.