Originally Posted by
punkalouver
For the actual sounds of lever movement, I suspect not.
One would think that the pilots would have heard(and possibly felt) the engines feathering. It is certainly very noticeable on the ground, although I suppose it is starting from a different blade angle.
They probably felt the feathering props and assumed it was the flaps travelling...again expecting a certain feel, rather than crosschecking indicators (not the PFs job until the checklist). When you take flap you expect a little nose up and speed to reduce, which is probably what happened, and at that point what the PF was expecting and wanting to occur. It wasn't until; later when she realized power lever movement was not resulting in increased IAS that they started to comment on it.
As for differences in noise, the gates and clicks of the flap vs CL movement should be identifiable if the recording is clear enough.