most likely built-up ear wax...
If the crackling is not part of the song, yes, it is bad. It could mean that the headphones have taken water damage.
It could be fluid in the ear or a problem with the temporo-mandibular joint (TMJ - where the jaw attaches to the rest of the skull).
There is moisture in the Television
The crackling sound in your head could be caused by various factors such as muscle tension, changes in air pressure, or issues with the inner ear. If it persists or is accompanied by other symptoms, it is best to consult a healthcare professional for proper evaluation and diagnosis.
I was startled awake by the fire's crackling sounds. The lightning came crackling past my head and struck the tree.
Something that is not supposed to be in your ear - is in your ear!
To find out about paint crackling check out www.diynetwork.com/how-to/a-crackle-painted-wall/index.html. They will provide you with easy instructions for paint crackling application.
It might mean that you have an ear feicton
Crackling in any joint is called crepitus. Medial plica syndrome is one possible cause of crackling in the knee joint.
Crackling only occurs if there is a short in the cable or your hardware.
This can be tinnitus, and there can be many causes. It is best to see a doctor for this, particularly an ear nose and throat specialist, if it persists. Possible causes/solutions if it is temporary: Crackling caused by pressure ~ this can be stopped by swallowing-drink some water or eat a lollipop. Crackling caused by water in the ear ~ sharply jerk your head to the side of whichever ear it is or poke around in there with a tissue or a cotton bud.
उलझ or उलझन - In Hindi, the crackling sound of geese can be described as "उलझ" or "उलझन".