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  1. #1

    FlyBoy's Avatar
    Member Since
    Sep 10, 2007
    Posts
    28
    Specs:
    17" Mac Book Pro 2.4GHz HD display, Wacom I3 , WD myBook 500G, intel mac mini, 24"imac(white)
    Unhappy Cant get my microphone to work :(
    i have tried using my line in port and it does pick up signal however when i plug my microphone headset in or the mic that i use with my memo recorder i can't pick it up with my mbp.
    I read somewhere that this is because the jack isn't long enough but i dont know how to solve this or if it is true.
    If anyone can help please do coz my mic wasn't cheap and i don't want to have to buy a new one.

  2. #2


    Member Since
    Apr 28, 2006
    Posts
    2,542
    Specs:
    iMac Core Duo 20", iBook G4, iPhone 8GB :)
    If the mic isn't cheap, then it needs to be powered by an amplifier thingie.

  3. #3

    FlyBoy's Avatar
    Member Since
    Sep 10, 2007
    Posts
    28
    Specs:
    17" Mac Book Pro 2.4GHz HD display, Wacom I3 , WD myBook 500G, intel mac mini, 24"imac(white)
    ahh that means i will go 2 buy a battery thinggy my memo recorder powers it tho howcome the mbp doesnt??

  4. #4

    DigitalN.'s Avatar
    Member Since
    Oct 17, 2007
    Posts
    46
    the input is a line in port, which only takes sound when the device has its own power, the line in does not send out power, so a microphone won't work.

  5. #5

    FlyBoy's Avatar
    Member Since
    Sep 10, 2007
    Posts
    28
    Specs:
    17" Mac Book Pro 2.4GHz HD display, Wacom I3 , WD myBook 500G, intel mac mini, 24"imac(white)
    cheers

  6. #6

    musicvortex's Avatar
    Member Since
    Oct 02, 2007
    Location
    Canada
    Posts
    105
    Specs:
    Mac Pro 1,1 / 2x2.66 GHz Dual Core Xeon / 5 GB RAM / OS 10.6
    Yeah. Be sure to check what type of connection. For certain ones, you will need to supply it with phantom power.

    eg. XLR mic-needs phantom power
    3.5 mm minijack mic-doesn't need phantom power

  7. #7


    Member Since
    Dec 17, 2007
    Posts
    3
    Hi all,

    I've been around the internet to find out why I can't get my headset mic to work on the MBP. Mostly, I have read that it is "because it's a line-in and requires a powered microphone". I have done some tests and determined that that is not the reason - but the real reason still eludes me. Here are some interesting facts...

    I have tried 2 gaming headsets using the audio-out and line-in jacks. Earphones work fine, mic produced no sound whatsoever. Let me clarify again that it is not low volume due to no amplification - there is no input at all. Then, I put the microphones through an amplifier and again no input at all. Then, I tried a karaoke microphone. It worked fine, but the volume was low. Through the amplifier, it was loud and clear. Most microphones are "mono", but I noticed that the two headset mic plugs had a "stereo" design, meaning two black dividers on the plug instead of one. The karaoke mic plug was mono.

    Here's where it gets weird. As a test, I hooked the stereo earphone part up to the line-in jack (unpowered). The earphones worked as a mic and I could talk into them like an unamplified microphone. The macbook pro picked up sound just fine, albiet at a low volume. Both headsets did this.

    So, in summary my tests for successful sound input are:
    Mono karaoke mic unpowered - yes
    Mono karaoke mic powered - yes
    Stereo headset mic unpowered - no
    Stereo headset mic powered - no
    Stereo headset earphones unpowered - yes
    Stereo headset earphones powered - yes

    Can someone with an electronics degree explain why the real microphone will not work in the line-in port?'

    Thanks,
    Hank

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