In this tutorial, we’ll share some troubleshooting tips to follow if the iPhone speaker sounds muffled on calls.
There are myriad reasons why your iPhone sounds muffled during phone calls. We’ll try to cover a few main aspects of why this happens, and then we’ll give you some tips on how to troubleshoot.
Why does my iPhone speaker sound muffled during calls?
Here are some reasons your iPhone speaker sound muffled when you call someone:
- Dust may be obstructing your iPhone’s ear speaker
- Your case may be obstructing your iPhone’s ear speaker
- Poor cell reception
What to do if your iPhone speaker sounds muffled on calls
Clean iPhone ear speaker
If you use your iPhone in a dirty environment, check the ear speaker for obstructions like dirt and grime. These things can easily get into the speaker grille of your iPhone and muffle sounds on calls. One of the key indicators of a problem like this is when your iPhone’s sounds feel distorted or muffled rather than clear, and you don’t have a case on.
If necessary, carefully use a small, dry soft-bristled brush to clear away any lint, dirt, or grime around the ear speaker.
Take off iPhone case
Some protective cases that you use with your iPhone may obstruct the sound and give it the effect of playing sound underwater since the sound waves have nowhere to go. Some highly protective cases are known for causing muffling during calls because you trade off your user experience for protection but never rule out that your case could be the problem.
To see if your case is causing the problem, remove it and then make a phone call again. If it still sounds muffled or distorted, then the dust idea above may be your culprit rather than the case itself. If this is the case, you either need to find a new brand or go caseless.
Move to an area with better cell reception
If the sound is muffled or crackles when you’re on a phone call, it could be because of poor cell reception. You can try calling later or move to an open area with a better cell signal and then place the call. Alternatively, you can turn on Wi-Fi Calling or use internet apps like FaceTime or WhatsApp to call via your Wi-Fi connection.
Turn your iPhone off and on again
If it’s a software glitch, which can happen from time to time, you might be able to fix it by simply turning your iPhone off and on again.
Update to the latest version of iOS
There is a possibility something in the iOS software itself has become corrupted, and installing an updated copy of iOS could solve the problem. To do that, go to Settings > General > Software Update.
Connect a headset and see if the sound works
If iPhone sounds muffled on calls with the built-in speaker after trying all of the above steps but are able to hear the caller clearly via the headset when a headset is connected, there could be a problem with your ear speaker.
If you believe an issue is tied to the iPhone speaker, then you will most likely have to visit an Apple Store to have your speaker serviced. If your iPhone is under warranty, it should be replaced for free. Otherwise, you may be facing a bench and labor charge.