Crackling noises in your headphones can disrupt the flow of whatever you’re doing, from working to working out. So here are a few steps you can take to diagnose, and hopefully fix, any annoying crackling.
Is the problem the headphones or the device?
Your headphones might be fine, but the problem is with your auxiliary port, or headphone jack. Test your headphones on a few other devices to see if the crackling persists, and test your device with a few other pairs of headphones that you know are in good working order. This should isolate the source of the problem. If it’s the jack, check that the headphones are securely plugged in and stay plugged in; a loose fit will cause crackling due to a poor electrical connection. Also try cleaning the tip of your headphone jack with rubbing alcohol on a cloth; dirt may be getting in the way of your connection.
Loose Wires
One of the most common causes of crackling are loose wires inside the headphone cables. If there are loose wires at the points where the wires connect to the plug, or where the wires connect to the earbuds, you can reinforce these with the curable polymer Sugru or even wrap the joins with electrical tape for a quick fix. If wires are loose or frayed deeper in the cable, this is probably because they have been bent or wrapped in the same direction over time. It might be too late to save this pair of headphones, but here are some tips to extend the life of others in the future.