Cracking Sound from iPhone 11 speaker

I am facing the issue of cracking sound when playing anything like Youtube/Music . Even when I am using Facetime or any speaker phone application that crackling sound is becoming prominent. More to that I am getting it from the top speaker (Earpiece) of the device.

It is very annoying at times and certainly not expected from a premium device like this. Even my old iphone 6 sounds better than iphone 11.

Have tried restoring the device and performed all troubleshooting without much result.

Do any of you are facing the same issues. What is the way of getting this rectified.

Unable to reach the service partner as most of them are non functional / semi functional due to the current situation.