My iphone 11 pro max microphone is not working on calls and is making a buzzing sound on voice notes or snapchat videos?

Thanks for posting in the Apple Support Communities Jeena_1999,

We understand you're having some microphone issues with your iPhone. Were you able to complete the isolate steps in the article you connected to the support communities from?

If you're encountering the same issues after removing any screen protectors or cases on your device, in FaceTime, or while using speakerphone, the best path forward will be to contact Apple Support.

Take care.