I have a Mid-2015 Macbook Pro, which has the combined headphone/microphone jack.

I normally use it in clamshell mode, and in the past some people have had a hard time hearing me if I try to use the built-in microphone, so I got an external microphone. I was just testing it, and discovered that when I plug it in, the Mac thinks I also have headphones plugged in, and disables the internal speaker.

When I go into Sound Preferences, "Internal Speakers" is replaced with "Headphones" whenever I plug in the microphone. I guess it thinks my microphone is actually a headset with both microphone and headphones.

Is there any way to disabuse it of this notion, and enable the internal speaker while using the external mic?

  • 1
    Once you plug in a 3.5mm jack into the port, it disconnects the internal speakers. If you want to use an analog mic get a proper interface. Or just just get a USB mic – Allan Jan 10 at 3:46
  • That thing is real overkill for something I'll use rarely. Plus I have no room on my desk for it. I may go with the USB mic. – Barmar Jan 10 at 6:33

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