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Low tech fix for poor internal mic quality

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By dutchhome, Junior Member on 18th March 2016, 03:26 PM
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I installed my headunit recently and noticed the crappy internal mic issues that is so common with our devices. My external mic wasn't going to be long enough to reach the stereo, so I installed a short extension cable.

What I found was:

Bad - Internal Mic, no external mic connected
Bad - External mic connected
GOOD! - Internal Mic with just the external mic extension connected

What a great relief! In my car, I have the GPS antenna sitting on top of the headunit (was too lazy to run the cable and mount "properly") and it works great. Now I also am using the internal Mic with excellent sound quality with just a small extension installed and nothing connected. I was not expecting such an easy time.

I still have the problem with bad A2DP sound quality. I haven't investigated this yet. I also have a weird problem where turning the volume know to the left will sometimes start making the sound louder. Luckily it fixes itself after a reboot and I can also volume down with the steering wheel controls.
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19th March 2016, 05:16 AM |#2  
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Interesting, thanks for the heads up. I wonder why this is?
19th March 2016, 07:26 AM |#3  
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Quote:
Originally Posted by ahfunaki

Interesting, thanks for the heads up. I wonder why this is?

What is 'external mic extension'? Please provide some pics. Very interesting find.
19th March 2016, 07:28 AM |#4  
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Quote:
Originally Posted by pa.ko

What is 'external mic extension'? Please provide some pics. Very interesting find.

It sounds to me like it is just a 3.5mm extension cord. Like this: http://www.amazon.com/StarTech-com-3...+extension+mic
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22nd March 2016, 06:10 PM |#5  
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Yes, correct. It is just a simple 3.5mm extension cord. I have no idea why it helps, but my system is good enough with it that I see no reason to do the mic hardware hack.
23rd March 2016, 04:30 AM |#6  
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This is what I did except i disassembled, unsoldered the old mic from the PCB and soldered in an extension w/ an 1/8 stereo female bulkhead connection at the back of the unit so i can plug in any mic I want to. Tested w/ my wife and she said it was crystal clear. Prior to that quality was HORRIBLE, not even usable actually.

Dave
23rd March 2016, 02:50 PM |#7  
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Hi, I'd like to try this to see if it will help my unit. does the length of the extension matter? what was the length you used?
Thanks for the help
24th March 2016, 10:48 AM |#8  
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Have you use a mono or a stereo mic extension?

MFG

Wolverine_DH
4th April 2016, 06:23 PM |#9  
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Quote:
Originally Posted by TT_Vert

This is what I did except i disassembled, unsoldered the old mic from the PCB and soldered in an extension w/ an 1/8 stereo female bulkhead connection at the back of the unit so i can plug in any mic I want to. Tested w/ my wife and she said it was crystal clear. Prior to that quality was HORRIBLE, not even usable actually.

Dave

Did this too. 100% difference! Wow, that is like, the exact wording I was going to use too...down to the "crystal clear" hahaha!
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5th April 2016, 03:23 PM |#10  
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Quote:
Originally Posted by natalic

Did this too. 100% difference! Wow, that is like, the exact wording I was going to use too...down to the "crystal clear" hahaha!

Guys, I wanted to test the "trick" with the extension but you write now what I did not understood.
Which mic did you unsolder ?
The connector for the external mic or which one ?

Thanks
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5th April 2016, 03:29 PM |#11  
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unsolder the mic that is internal at the front of the unit. With that though I'd try that extension and see if it helps you. If it does you don't need to unsolder but I really don't see how that could possibly help.

Dave
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