WhatsApp audio issue on iPhone 11

I just bought the iPhone 11, and found out that the Audio Messages on WhatsApp sound a little weird, like vibrating and plays no clear sound.

Have anyone of you guys had the same issue?

Any clue on how to solve it?

So far it doesn’t seem like there is a hardware issue, since it plays sounds fine in other apps like YouTube. I’ve performed the re setting routine and nothing seems to help.