Skype voice messages volume

iOS & iPadOS

hi all,
i have been using the voice messages in Skype for iPhone since 3 weeks ago. The thing is that I notice a huge difference between the volume of my messages and those from my Android Friends. my messages sound very very low and I have been looking for some setting control to change this, or trying to delete the App and reinstalling it but the issue continues happening.
I think that my iPhone is not the problem cause this doesn't happen while using my WhatsApp, so is not my mic. I'm using an iPhone 7 red.

Has someone had this same problem