I have noticed two types of popping sounds: a muffled pop and a very loud pop.
It can be hard to hear the muffled pop, because you might think it is static in the audio recording or a drum beat in the music. You can detect it easily when you playback the audio side-by-side on another machine though.
The very loud pop was alarming when I first heard it. There is dead silence at the beginning of a track, and then there is a sharp pop that is far louder than the volume of the music or audio. These loud ones made me listen closer to other tracks, which is how I noticed the muffled pops.
This issue seems to only happen on certain tracks and maybe certain programs, so maybe you might not encounter it. I did not notice it for the first one or two weeks.