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Microphone issue on the Nexus 5

OP DarknessWarrior

23rd November 2013, 01:24 AM   |  #1  
Hello, so, I've seen a lot of people complaining about microphone noise but that's not my problem.

The Problem:

Sometimes when people call me they say they can't hear me, or hear me like I'm meters away from the phone, other times it's fine. Tried recording with the camera and with sound recording apps from the play store and they all record the sound perfectly on both mics.

The Debugging

Seeing this seemed to be happen randomly on the calls but I couldn't reproduce it anywhere else I decided to start digging the root of this problem.

I searched the web and got this thread on Google Forums: http://productforums.google.com/d/to...X1A/discussion where they mention recording with Google Keep, so I did a comparison betwen a recording with ASR (https://play.google.com/store/apps/d...id=com.nll.asr) and Google Keep, here:

ASR: https://dl.dropboxusercontent.com/u/...ASRbgnoise.ogg
Keep: https://dl.dropboxusercontent.com/u/...eepbgnoise.3gp

As you can see (hear), the problem doesn't seem to be hardware related, as the recording with ASR sounds perfect, even when I recorded with noise cancellation on, off and using the camera mic, with background noise, but I can barely hear the Google Keep recording, it sounds like I'm meters away from the phone.

The problem seems to affect about 1/4th of my calls and with Google Keep it seems that it's always there, atleast on all my recordings, I think it might be a software bug on the noise cancellation, what do you guys think? I think that if it was hardware problem it would happen with all apps?

Any help you guys could give me on how to further debug and/or fix this would be very welcome.
Last edited by DarknessWarrior; 23rd November 2013 at 10:09 PM. Reason: cleaning the post
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23rd November 2013, 05:03 AM   |  #2  
any help would be appreciated
23rd November 2013, 05:49 AM   |  #3  
beazie0885's Avatar
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Having same problem with mine

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23rd November 2013, 05:57 AM   |  #4  
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Same issue here. Waiting for an update. I'll RMA if that doesn't do anything.
23rd November 2013, 10:12 PM   |  #5  
thank you for your feedback, I updated the OP to make it easier to read.

Atleast I'm not the only one with this problem...

I'm a programmer and I know a bit of android but I only have the general idea how the noise cancellation works, I don't really know the details, so if a dev could help me debug or fix it would be great.
24th November 2013, 04:03 AM   |  #7  
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I had the same issue, only the mic was basically useless on every single call, unless you used speakerphone.

I was going to RMA, but decided to flash
Cataclysm before I did. Surprisingly, this corrected the issue completely! Not sure what the rom changed, but I'm not complaining!!

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24th November 2013, 04:31 AM   |  #8  
well that ROM seems to have a non-stock dialer, may have something to do with the dialer app?
24th November 2013, 08:26 AM   |  #9  
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Oh crap, I thought I was the only one! I'm having the same problem, but it's so random!
25th November 2013, 01:46 AM   |  #10  
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Just wanted to say I'm having this issue too. I noticed it gets worse if I point the microphone directly away from me while on a call. I think there's some interference with the noise cancelling microphone at the top of the phone.

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