Earphone and microphone setting issues

Question

When using my apple earphones, and using a messenger such as Skype, the microphone on my earphones seems to be the default input rather than on my mac book pro, is there a way to change this so that the microphone in my mac book pro is the default rather than the earphones, whilst still using the earphones?!?!

Answer 1

I could tell you now that that would be a waste of time.
the line in is never used when doing this connection, and the internal mic switches to the external automatically.
Theoretically you could try to modify the connection (there are three bans each one is for different tracks, left right and mic, modifying it so there are only two seen would work) but you run a huge risk in damaging your headphone jack so it would be silly to even think of.
You're better off getting a pair of headphones that have a removable microphone line or ones that don't have a microphone at all.
or you could do something really crazy like get an earphone splitter and plug that in and then plug your headphones to the earphone splitter (where it makes one headphone jack be two) and then that would cover your headphones to only be headphones and won't read the mic. (make sure your splitter doesn't support the microphone channel) you'll be able to tell because it'll only have two bands on it instead of 3. you want it to only have two.
for example this:
would do what you want. notice that there are only TWO (2) black bands instead of Three (3) which you can see on the connection for the headphones you have now. This connection above will solve your issue for sure.
either way your current hardware won't allow it. I've seen these splitters everywhere. Chances are you may have one. and if you're using headphones maybe you havea  friend you want to share the sound with.