audio mic input when using Siri or dictation

Hi,
I am having issues with the audio mic input when using Siri or dictation on my Mac. Could you please help?
When I use dictation on my Mac, it does not hear any signal from my audio interface. When I switch the mic input to the internal microphone or an external webcam microphone, dictation works fine. The audio interface is being heard perfectly well when I open logic, so I dont think the issue is with the audio interface. (Ive tried changing the mic input to each of these in system preferences>keyboard>dictation settings.)

When I use Siri on my Mac,it does not hear any signal from my audio interface OR my internal microphone. Siri does work fine when I switch the input to theexternal webcam microphone, but that is the only mic input that is working.
I’ve tried changing the mic input to each of these in system preferences>siri settings.)

I’m not sure how to fix this or if there’s just an issue with the software, I don’t see anywhere else to adjust settings. Can you please help?
Thanks,

I didn’t find the right solution from the internet.
References:

infographic video