Sony NEX-5N External Mic "Rumble" test (w/ ext mic gain test)

VIDEO#3 Sony NEX-5n with and without External Mic ECM-SST1.

This is video #3 with ext mic on while panning in a quiet bathroom. In an effort to test if there is an auto gain control, I talk gibberish through the panning test to see if the rumble would dissipate to compensate for my voice...it doesn't appear to.

As mentioned in the earlier videos...Notice the rumble, as if there's a light breeze in the room. One of the reasons I got this mic is ironically to minimize wind noise. The audio is actually quieter without the external mic (see video #2).

I tried fiddling with the two audio settings (movie audio On/off and Wind noise reduction on/off but nothing made a difference.

Is it just me hearing this?
Anyone else experience this or have advice to offer?

Category:

Music

Tags:

• Sony NEX-5N
• ECM-SST1