I have 3 macs, 2 of them are fine but one of it doesn't have the Internal Microphone recording option in Quick Time Player. Only the other 2 have.

How can I fix this?

The MacOS are all 10.14.3 Mojave and the Mac is Mid 2015. The other two are 2018 and 2017.

  • 1
    Can you give the exact models - Mini? Macbook Pro? Air? iMac? Also, does the microphone show up in System Preferences > Sound as a listed input device? – benwiggy Sep 27 '19 at 12:09
  • It's a Macbook Pro. Retina 15inch. – AGamePlayer Sep 27 '19 at 12:51
  • It's not in the Input device, nor in the output device. – AGamePlayer Sep 27 '19 at 12:52

If the microphone is not listed as an Input device in System Prefs, then that's a larger problem than just QuickTime Player: the OS can't access the mic at all.

Assuming you've turned the Mac off and on already, you could try resetting the NVRAM.

You might see whether updating to Mojave 10.14.6 improves matters.

Beyond that, it's likely to be a hardware issue. Is it possible that anyone's opened up the insides for a battery replacement, or other issue? Perhaps they didn't put the cable back properly.

  • But I can hear the sound (clear and loud enough), does this mean the problem is not as serious as a hardware one? – AGamePlayer Sep 28 '19 at 0:41
  • So you can record using the microphone, you just can't select it? OK, that rules out a physical issue. I'd try resetting the NVRAM. – benwiggy Sep 28 '19 at 7:50
  • Do I need to backup my data before resetting the NVRAM? – AGamePlayer Sep 28 '19 at 8:42
  • You always need a backup, under any circumstances. ;-) But the reset shouldn't affect the data on the disk. – benwiggy Sep 28 '19 at 10:22
  • Also, if that doesn't work, try updating to the latest build of Mojave. – benwiggy Sep 28 '19 at 10:22

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