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Apple Computing Products:
macOS - Notebook Hardware
Cant get my microphone to work :(
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<blockquote data-quote="Hank McCoy" data-source="post: 549956" data-attributes="member: 43757"><p>Hi all,</p><p></p><p>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...</p><p></p><p>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. </p><p></p><p>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. </p><p></p><p>So, in summary my tests for successful sound input are:</p><p>Mono karaoke mic unpowered - yes</p><p>Mono karaoke mic powered - yes</p><p>Stereo headset mic unpowered - no</p><p>Stereo headset mic powered - no</p><p>Stereo headset earphones unpowered - yes</p><p>Stereo headset earphones powered - yes</p><p></p><p>Can someone with an electronics degree explain why the real microphone will not work in the line-in port?'</p><p></p><p>Thanks,</p><p>Hank</p></blockquote><p></p>
[QUOTE="Hank McCoy, post: 549956, member: 43757"] 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 [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Cant get my microphone to work :(
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