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Can't get the microphone to work

by Alan Rawn / February 26, 2010 7:07 AM PST

I can't get my microphone to work. On the system preferences> sound> input screen, I am "line-in", with volume up, and inserting the jack registers on the volume meter of little blue bars with a spike up, but no speech through the microphone is registering.

Any help? Thank you.

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System information?
by mrmacfixit Forum moderator / February 26, 2010 8:40 AM PST

What sort of microphone?
USB or analog?


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Re: System Information
by Alan Rawn / February 26, 2010 9:26 AM PST
In reply to: System information?

It's surely analog because it's a 3.5 mm circular jack. And I use a MAC Pro Intel tower, and am plugging it into the audio in portal in back. And when I insert and pull out the jack from portal, a sound registers in sound> input, in system preferences. But no sound through the mike registers.

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This could be your problem,
by mrmacfixit Forum moderator / February 26, 2010 10:57 PM PST
In reply to: Re: System Information

Turned this up at the Apple site

Most headset microphones require a 'mic in' port and not a 'line in'. Basically Line level is way lower than mic level so you need power to the mic to boost the level. This is usually provided by a battery or phantom power. On a PC, the headsets will work as the input port is mic level, but Apple chose to have line in because it has more connectivity options (minidisks, MP3 players, etc).

One way around this problem is to find a powered mic or, spring for a USB mic/headset and plug it into any USB port.

Logitech make some decent, and fairly cheap, ones.


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by moonbridge / January 26, 2013 5:49 AM PST

Did you ever get your mic to work?

I have this problem and am getting very frustrated.

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