1. N4Newbie's Avatar
    I was looking at my N4 last night and noticed along the top edge the audio out jack on the left (of course) and a small hole on the right. Hmmm, I thought, what is that for?

    Well, it appears that it is a second microphone - Nexus 4 hardware - Nexus Help

    The only purpose I can think of would be for stereo audio input when shooting video. Any other explanation?
    donec likes this.
    12-03-2012 08:01 AM
  2. NotJustAPhone's Avatar
    That's probably the microphone used by the system that suppresses background noise during calls.

    Sent from my SGSIII
    donec likes this.
    12-03-2012 08:09 AM
  3. N4Newbie's Avatar
    That's probably the microphone used by the system that suppresses background noise during calls.

    Sent from my SGSIII
    Wow, I didn't even know that it had that functionality!
    12-03-2012 08:11 AM
  4. willdogs's Avatar
    Wow, I didn't even know that it had that functionality!
    Many smartphones have this for the past few years
    12-03-2012 08:12 AM
  5. N4Newbie's Avatar
    Many smartphones have this for the past few years
    Guess I never paid much attention.
    12-03-2012 08:14 AM
  6. DirkBelig's Avatar
    It had been mentioned when it was introduced. Not widely, but I was aware of it.

    Is anyone else getting complaints from people they're talking to that they sound muffled? My g/f misunderstood me because she said I sounded muffled and the playback of my outgoing Google Voice message sounds pretty muddy.
    12-03-2012 08:57 AM
  7. ragnarokx's Avatar
    I was looking at my N4 last night and noticed along the top edge the audio out jack on the left (of course) and a small hole on the right. Hmmm, I thought, what is that for?

    Well, it appears that it is a second microphone - Nexus 4 hardware - Nexus Help

    The only purpose I can think of would be for stereo audio input when shooting video. Any other explanation?
    This was actually a huge deal when the Nexus One came out 2 years ago. It's a common feature for phones today, though.
    12-03-2012 09:27 AM
  8. csloomis's Avatar
    A lot of non tech people don't realize that this is a common feature on new phones. I think that is why Apple's newest iPhone commercial shows off it's noise cancelling system, to try and convince people that they have something special that others don't. Even though it is not a unique feature.
    12-03-2012 11:49 AM
  9. KwietStorm's Avatar
    I guess I see why Apple operates the way they do now.
    AbuYazeedUK likes this.
    12-03-2012 01:22 PM
  10. AbuYazeedUK's Avatar
    I guess I see why Apple operates the way they do now.

    Can't blame them lol


    12-03-2012 01:33 PM
  11. kenatsun's Avatar
    I'm guessing one is the regular mic and the other one is for when you're in speaker-phone mode. I speculate this because I (and others) have a problem where the mic is dead unless one is phoning in speaker-phone mode (for example, see The other party on a call can't hear me - unless I turn on the speaker !?? and http://forums.androidcentral.com/and...aker-mode.html). Also, the best N4 "takedown" video I've come across (https://www.ifixit.com/Guide/Disasse...een+etc./12189) points out a "secondary mic" as he is disassembling the phone.
    01-02-2017 12:14 PM

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