My primary mic seems to be broken. Google Now voice search records no audio and while in call the other side can not hear me talk. Booting to safe mode does not help either.

However when I switch to speakerphone, all is working well. As far as I've read the Nexus 5 uses another mic in speaker phone mode (noise cancellation).

Is it somehow possible to always use the speakerphone mic? Since it is the only one working for me.

  • yes, it is rooted
    – JochenJung
    Mar 26, 2015 at 8:03

1 Answer 1


I found two apps one free - Auto speaker here Try the free one first

second Tasker - Paid here

It has lots of automating features beside your need. Before paying for App Read the tutorial first. To use tasker use this tutorial link

Both apps uses sensors. Try on you device.

  • Both apps seam to be able to trigger speakerphone mode. But that's not what I'm looking for. I could switch to speakerphone mode myself using the in-call button. But that would switch the speaker as well as the microphone. I'm looking to switch the microphone only. I think there is no native Android call to change that behavior, since most devices do not have different microphones. I guess its part of the nexus 5 firmware.
    – JochenJung
    Mar 27, 2015 at 18:10
  • 1
    I do not recall or found any such application to switch mic permanently without switching speakerphone. With dual microphone, you can get custom build application for your need for your device. But I rather suggest you to get that mic replaced with authorized service center. Mar 28, 2015 at 2:28

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