My iPhone X ear speaker sounds muffled all the time low or high volume .what can I do?

Hey there, and welcome to Apple Support Communities, warwick2068!

From our understanding, your iPhone speaker appears to be muffled when listening to audio. We definitely want you to be able to enjoy games, music, and videos without issue and would be happy to help.

It seems that you might have already been able to locate If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support, which has some helpful steps to resolve this.

If those steps didn’t help, we’d recommend trying to connect a pair of headphones to your iPhone, does the same thing occur? Also, does this occur with all or specific audio? For example, does it only occur on phone calls?

Kindest regards!