Audio Test Suggestion/Query

I'm going through the wonderful process of a full FSX reinstall and it makes you asks questions of yourself at every turn.

For the Q400, during the Audio Test you get : Left speaker test : Right speaker test.

I'm not sure if this test is to replicate the cockpit audio or the PC speakers sound check.

If it is for the PC sound test, would it be feasible in any future update to add : Headset test?

(I think the situation is the same with the NGX and i'm not sure of the other aircraft)

With best regards

Trev