No speaker device found with index None’ when using external microphone

Hi,

Yes, I have tried setting up both in the Device manager. Just as the individual who recently posted to the forum reported, I have the exact same issue of no audio being recorded. I posted about this as well in more detail:

I am also in the data collection process, and am lost on what to do, as just last week, the experiment worked great! I’m wondering if either of you have found a solution?