There are dumb questions
There are dumb questions and there are dumb questions
You get questions written in bad grammar with lots of spelling mistakes, where the person uses a roundabout route and the wrong terms to ask how to do something. But that’s not a dumb question; this person is just a bad typist and is not all that technically inclined.
The dumb question is that one short sentence phrased in perfect English. Asking how to do the obvious, the one thing that the entire interface is streamlined to make as simple and easy as possible.
“Hi, how do I record my voice?”
(at least provide some information about how you have failed in your attempts so far… grr!)