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gglasson Level 1 (0 points)
Is anyone else noticing that their iPhone's internal microphone is active when they have the Apple supplied headphones connected during a phone call? I don't believe that this was the case when I used the Apple headphones that came with my iPhone 3G.

iPhone 4, iOS 4, Headphone & internal mic
  • anilsudhakaran Level 4 (1,465 points)
    How do you know if internal mic is on or not? What is the indicator?
  • gglasson Level 1 (0 points)
    I'm assuming it is because when I'm on the phone, I hear something like an echo whenever there is any sound on my end of the conversation. Also, to test this, I've brushed my finger alone the mic on the phone and it is really loud through the headphones that I have connected. I'm guessing that that noise is also transferred to the other person on the conversation.
  • geoff2 Level 1 (30 points)
    I've noticed that too, and it happens whether I use the supplied headphones or the headphones which came with my iPhone 3G. The internal microphone was not active when I used headphones on my iPhone 3G.
  • geoff2 Level 1 (30 points)
    Followup: I called Apple about it. It happens intermittently for me, including when I was on the phone with Apple support. After a few tests, I'm restoring the software onto the phone to see if it's a software thing, and if it still happens, I'm going to do an exchange.
  • Jeff Shaw1 Level 1 (30 points)
    Sounds like a software bug. Did you restore as new phone or from backup? Try restore as new phone (I know, it's a pain).
  • Ashley77 Level 1 (0 points)
    This also happens to me. It makes the phone call very noisy with a loud echo. It happens with apple headphones and sennheiser-strangely I didn't notice it on the first couple of phone calls made with the headphones but now it's every call. I'm reluctant to do a full restore as new phone unless I have some evidence that it will work!
  • Demarius Level 1 (5 points)
    You're not plugging in the headphones the right way
  • geoff2 Level 1 (30 points)
    I really really really don't want to restore as a new phone. It's not so much anything saved within the apps but its my collected SMS messages which I don't want to lose. (There's some good stuff in there I don't want to lose.) Is there any way to archive the SMS messages on my computer, because if so, I might give that a call just to try.
  • Tabitha Brady Level 1 (45 points)
    What is the 'right way'? Surely the headphones are plugged in or they aren't? Can you explain?
  • Ashley77 Level 1 (0 points)
    Has anyone tried restoring as new yet and seeing if this fixes it?
  • geoff2 Level 1 (30 points)
    I have not. However, I found that rotating the plug in the microphone jack will start/stop the internal mic, so I think it's some hardware thing where whatever triggers the internal mic to shut off isn't being triggered appropriately.
  • pablos1 Level 1 (0 points)
    I've noticed it too, using a set of Shure earphones with no mic.

    It's most noticeable when you're in an area with very loud ambient noise, such as walking down the street.
  • derryhumma Level 1 (0 points)
    I've noticed it only when on a call while driving. Problem occurs with supplied earbuds -- and my favorite V-moda Vibe Duo which worked fine with 3G. If car is not moving, all is well. Once I'm moving, get repetitive static that maps to sound of tires going round & round. AARGH! I use my phone a LOT when driving, so this is a big deal. (Sorry, Oprah...)

    At least I have a better understanding now. Any sense of whether this culd be addressed with software?

    Message was edited by: derryhumma
  • priggy3k Level 1 (0 points)
    I have this problem too and it's really annoying. I have Shure earphones which isolate out outside noise, and connect them through a third party cord with a microphone and clicker on it to the iphone. I have tested this with multiple of these cords, including a monster one I got today at the apple store. In all these cases, the inline microphone's input gets sent through my headphones, and depending on the level of noise it can make it almost impossible to hear the other person in the conversation. THis must be a software/iphone hardware thing because the only way I would be able to hear it is if the iphone's amplifier was taking in the microphone's sound and then adding it into the headphone audio feed. I would like to see a fix for this in their next update . . .
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