iPhone 3GS "buggy" voice cancellation in speaker calls?

Discussion in 'iPhone' started by ey51, Dec 7, 2010.

  1. ey51 macrumors newbie

    Dec 7, 2010

    Sorry for the long post, but it's worth it to a lot of users!

    This has been of a disturbance to me for quite some time..
    Possibly the thing that most disturbs me about the iPhone 3GS is the that while talking in GSM on speaker mode (hands free), the other side usually complains about not hearing well, unless I hold the phone so the speaker is directly in front of my mouth. Then again, holding it ruins the whole point of hands free.

    My guess is that the noise cancellation, used when switching to speaker, is what's causing this. It's just too harsh.

    I did a little test, and the problem is not that bad when using VOIP apps such as viber. Maybe these apps don't employ the same noise cancellation schemes as the native phone app. Also everything sounds fine of course when not in speaker mode. All this means to me it's not a microphone hardware problem. I tested with several 3GS's. I don't think I had this problem with the iPhone 3G.

    I'd rather have the other side hear some noise as long as they at least hear me.

    I will bless every night anyone who knows of a way to fix this. Jailbreak fixes are also blessworthy.
  2. FSMBP macrumors 68020


    Jan 22, 2009
    3GS doesn't have noise cancellation (correct me if it has some sort of software).
  3. ey51 thread starter macrumors newbie

    Dec 7, 2010
    I am assuming it has some sort of human voice tone recognition software (which doesn't work so well) to filter out non dialog background noises when talking on speaker mode.
    Maybe the use of "noise cancellation" is technically inaccurate.
  4. zephxiii macrumors 6502

    Jun 21, 2010
    My dad will put me on speaker phone on his 3gs some times, it's freakin terrible! The mic just does an abysmal job of picking up voices in speakerphone mode.

    I would imagine there is some sort of preventative processing that keeps the speaker part of speakerphone from feeding back into the microphone, this is probably what you are experiencing.

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