1) How far away was your husband when you taped him - and his audio?
2) What mode (switch on the mic) were you in? There are three modes (zoom, tele, wide). Have you tried all three?
this is an interesting read/review about your mic.
At worst, that external mic should be getting at least the same levels of audio as the built-in mics - perhaps even louder audio (and less hiss than the internals). It is also possible that it *might* be a faulty unit.
I just purchased the external mic that attaches to the Panasonic PV_GS500 VW-MH3. I tested the sound by taping my husband speaking with and without the mic. It sounded a lot louder and clearer without the mic. Am I using this mic incorrectly? Does anyone have any experiance with this mic?