2.26 or 2.4 GHz / White plastic unibody enclosure

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Why still pick up sound?

I detached rear speaker connector, right speaker connector, left speaker connector and microphone connector.

But this macbook still pick up sound.

Where is other mic?

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1 Answer

Chosen Solution

First are you sure this is your system? If it is, then your system only has the one internal microphone which is located next to the left speaker connection. Here's an image of the connection:

Block Image

You would need an external microphone plugged in via the 3.5-mm analog/optical combo ports for headphone or Aux connections. Or, a USB DAC unit which then has the microphone connected. Or, lastly a Bluetooth headset connected wirelessly.

I'm suspecting you have something else going on here. If you're sure none of the other options are connected. What is the sound? Please describe it.

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Yes.it is my system. I detached it.

I didn't connect anything.

I realized mic input moves , when I hit the body of macbook by finger.

It's weak. But I obviously can record the sound.

when I hit body around caps key, mic pick sound storonger.


Can you explain a bit more on what you mean by hitting the system you are recording it.

That sounds more like (no pun intended here) your system has a loose connection somewhere or the HD is failing so you're hearing the make and break of the bang in your recording.

If you can't hear the recording has some fidelity of your self talking or the recording of music or what ever, thats your problem a breaking of the electrical connection not the microphone.


For example I start sound recorder on my operating system and then I knock the body of macbook. Then I can hear the knocking sound from the audio file. In spite of detaching the microphone connector.

I tested about human voice also.

Pretty little sound like mosquite.but it can record human voice too.

I'm thinking what records sound.

I feel like there are one more small secret microphone in my macbook.


Again there is only one microphone internally.

You have something thats taking the vibration (disturbance) which is what you are recording. This is not a microphone but it acts like one.

Think on how a crystal radio works the radio vibrations are picked up by the crystal that you can hear! Here's another way you can pickup a radio signal braces pick up radio. Hopefully you can extrapolate how this can also occur within your system.

At this point I think you'll need someone who has the skills to properly diagnose the loose connection, bad solder joint or components.


I understand.

I really appreciate you.


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