My vix seems to be OK...you can hear the bird's chirp very loud. The sound of the vehicles as well as slight wind noise.


My hypothesis is that the built-in mic is over sensitive to extreme loud and sudden sound. OTA should alter the mic algorithm.

Here's another reviewer from Itali that shows the vix sound is fine:


However, only when recording fast-mo and slow-mo, no audio is recorded. I'm expecting an OTA for this quirk.