Earpiece speaker sounds muffled & distorted while listening to music on my iPhone 11
I had bought an iPhone 11 last December it was working fine till now.Recently I have updated the software to iOS 13.4.1.Now I am noticing that whenever I am listening to music or watching videos on YouTube without earphones the earpiece speaker sounds muffled and distorted.I had a similar problem with my iPhone 7 which I had purchased in April 2017 wherein after 4 months of use the earpiece speaker started to sound muffled then the call volume through the earpiece speaker slowly started decreasing to a point when the person on the other side of the call became nearly in audible and I had to use earphones to make calls.I have sold off my iPhone 7 and I hope the same thing does not happen with my IPhone 11.
Is this a software or a hardware problem will future software updates fix this issue or is there any other way to fix it.Please help.
Regards,
Rajib Banerji
iPhone 11, iOS 13