I7 doesn't record audio in video when horizontally

[alveree]

Hey people,

Since I bought it month and half ago, I've noticed that my iPhone 7 doesn't want to record any sound while recording video, only when I'm recording while I hold the phone in horizontal position(like trying to shooting the ground, water, etc...).
After, I play the recorded video - only "noise" is hearing.

Someone else with this problem?

 

[Tartarus]

Make sure you're hands are not blocking the microphone.
I can't think of another reason why it should not register sound.

 

[alveree]

*Hands down*. No case as well. Mic is clean. :\