Hi. I just purchased my hydromoth couple days ago, and I found out that no matter where I use it to record - underwater/ in air etc... there's a very obvious background noise. All the settings in the app are by default, no filters.
Is it normal to have such noise? Here is a example:
It's a bit hard to tell without any foreground noise. Can you record yourself counting in a normal speaking voice about 40cm from HydroMoth, without the case, at 48kHz and medium gain.