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My mic is broken in my iphone headphones, so when i'm on my macbook air i have to pull out the headphones so that the macbook mic is selected.

Is there anyway i can have the headphones plugged in and use the mic from the macbook? I checked in the sound settings and there's only ever one input mic to select from.

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Couldn't you just use another pair of headphones? Alternatively, you might be able to use a TRRS to TRS converter which basically gets rid of the microphone channel. –  slhck Jan 3 '13 at 9:50
@slhck I don't have another pair of headphones otherwise would. I'm not too sure what you mean by TRRS/TRS is there some software you can recommend? Thanks. –  Paul Mason Jan 9 '13 at 3:05
The iPhone headset uses TRRS (Tip, Ring, Ring, Sleeve) jacks with a separate ring for the microphone channel. Normal headphones don't have that, and you'd need an adapter to get this working. A female TRS to male TRS adapter would work, or a TRS extension cable. This way, the Mac won't recognize the microphone. –  slhck Jan 9 '13 at 8:15

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