Hole by the heapphone jack? - HTC EVO 3D

What is the hole by the headphone jack for? It is not discussed in the user's manaul at all although it is in the drawings of the top of the phone.

Noise canceling Mic
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I thought that might be it. You'd think HTC would tout this in the manual. Thanks!

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Voodoo sound question

So my girl says that when she talks to me she could barely hear me. She says I sound muffled and not loud enough. Is there anything I can do with voodoo sound control app that will make me sound clearer and louder? ? Thanks guys
Sent from my SGH-T959 using XDA App
I'm going to post the obvious... are you covering the mic on the bottom of the phone with your finger/phone cover?
I hear if you turn the volume down sometimes its easier to hear though there has been reports of faulty mics that are covered incorrectly by the housing of the phone
s15274n said:
I'm going to post the obvious... are you covering the mic on the bottom of the phone with your finger/phone cover?
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Lol funny. No I thought about that.
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Nothing
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[Q] 2nd mic?

What is the second mic for near the headphone jack? Is it noise cancelling? I've never really noticed it until a few days ago.
The speaker's at the back and the phone had a feature wherein you flip the phone over and it automatically activates the speakerphone. So I guess that's what that's for.
Sent from my HTC EVO 3D X515m using XDA App
spectralblue said:
The speaker's at the back and the phone had a feature wherein you flip the phone over and it automatically activates the speakerphone. So I guess that's what that's for.
Sent from my HTC EVO 3D X515m using XDA App
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well it doesn't automatically activate speaker for me.
Yes, it is for noise cancellation.
hockey4life0099 said:
What is the second mic for near the headphone jack? Is it noise cancelling? I've never really noticed it until a few days ago.
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I think ur more correct then him but I believe its to pick up things alot better when being on speaker phone
Sent from my PG86100-EVO3D-using Tapatalk
Its also for stereo audio recording while recording video.
akrod2as said:
Its also for stereo audio recording while recording video.
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+ 1
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Headphones

I just purchased the Optimus G and tried inserting Samsung 3.5 Mm earbuds into the phone. No audio came through unless I jammed the connector as far as I could into the phone. I just tried headphones from Jabra and Creative, and the same problem is present. It seems like the jack is not "clicking" when I try to connect the headphones. Does anyone else have this problem? Do I need some special headphones for this thing? I saw another thread that was similar, but the description was not quite the same.
Mine clicks in although it is tight.
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u just have to push it in a little. It is tight but that is better so it doesnt fall out and u get the best sound
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get some Zaggs aqua buds, mine fit like it was made for this phone l.
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Headphones

My headphones arent working well. Anyone else experience problems with the headphone jack?
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Known issue. Some people were able to remove lint but other have a problem. It usually occures with headphones that have a microphone for calls. The headphones male piece is a bit to long for the Jack. Just try different headphones that have a mic or use plain headphones without a mic.
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Using wrong mic

The only way for people to hear me is if I am on speaker or using a head set. I've tried many different roms. I believe my phone is using the top mic (noise canceling one) as opposed to the one at the bottom.
Does this sound crazy? Anyone have any idea how to fix or why this randomly happened?
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