iPhone XR Speaker Distortion/Crackling

I’ve had my iPhone XR for about 2 months now. But, just today I was listening to some of my music & I noticed a kind of crackling sound. I played the music on a bluetooth speaker to see if it was just a problem with the settings I had in Spotify, but it sounded fine through the speaker. I did the same thing with Apple Music to make sure that it is definitely a problem with the phone’s speakers. Any way to fix this?