Chosen Solution
Hello, I’ve seen a couple variations of this question but not my exact problem on the iPhone 6. When I speak to people on a call, they say I’m very muffled; however, if I put it on speaker they can hear me fine, and I CAN record voice memos, video, etc. This is a brand new headphone/lightening charger/speaker assembly. Sadly, I can’t go back to the place that did it because I’m now posted overseas. Any thoughts? There’s no gunk in the microphone, and it’s not the case - have cleaned and swapped out cases and tried no case - no difference.
You have two mic’s on your phone which is why you sound normal on speaker phone. I would take a pin, earring or something small to clear out the small circular holes on the left hand side of your charging port as that is where your mic is located. Alot of my customers either get pocket lint or other small material stuck in those holes and it muffles your audio. If you can confirm that it has been cleaned very well then your next step is to replace the audio/dock ribbon cable on your phone. If you arent comfortable with opening phones you can take it to a repair shop, send it to me or attempt the repair yourself from the video below. iPhone 6 Lightning Connector Assembly Replacement
If your iphone case has a lid which folds over, it can partially cover one of the microphones. More specifically the mic between the flash and rear camera. When this happens, the iphone treats your voice like background noise and attempts to filter it. If you cover the mic completely, noice cancellation is disabled and your voice will sound normal. Disabling noise cancellation in iphone settings doesn’t help, as that is probably for the speakers only (better listening experience for you). Possible workarounds: -Get rid of the case -Hold your phone differently - no fold-over lid -Tape the rear mic -Always use headset
I have had this problem despite replacing the whole lightning connector/mic/headphone jack twice. Stripped it all back down this morning and spotted the bit of tape/adhesive that the manufacturer had put over the very small microphone hole on the component. I scraped that off carefully with a razor blade and put it all back together and BINGO! Sound is perfect now. Lesson learned!
I had same issue with low sound on calls, many calls to support, no resolution….taping the back mic fixed the problem on my iphone 8 Thanks
What if, after opening an iPhone, the display is not yet glued back to the case (with the specific adhesive tape)? Can this also cause muffled sound when vibrations from the voice are getting onto the display via the ear?
