Volume very low microphone (CM 13 6.0.1) - Galaxy S 4 Q&A, Help & Troubleshooting

hi guys, first I can not write in English, I am using a translator, I am Brazilian (unfortunately)
My problem is the following:
I updated my Galaxy S4 i9500 for CM13 6.0.1 Optimized
It worked okay, just a few bugs in the camera, but my biggest problem is being in the microphone volume is very low, and this problem had in my old update that was the lollipop, but in Lollipop I activated Speakerphone and wore it well
Now the CM13 to the speaker the audio goes down, WhatsApp recordings come down
I've been looking at that mixer_patch.xml file, but do not know where I can try to change some value there to see if I can solve my problem
I hope you can help me in this
Excuse my English, I hope it is understandable
Thank you

It's not that the volume is very low, mic volume is fine, it's just that any mm/lp rom that's not tw uses the second mic (the one on the upper side of the phone) instead of the first mic. In calls everything works fine, but in voice recording apps like ok google or whatsapp is not.

So then, how to fix the mic problem? Is there any way to switch the first and second mic using a kind of config maybe?

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[Q] help!! nexus 4 low mic volume during phone call,

Guys I need help in fixing my inbuilt mic. Volume is very low and friends on other side are unable to listen anything. Though it is working when I use Skype, viber or recording.
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Thanks in advance!!
Got the same issue
Just thought I'd chime in and say I have the same problem after the update to KitKat... Bummer
When recording the voice with whatever software there's no issue but callers say I sound very low/very far away from the mic. No difference between using the phone's mic or using a wired headset. Have yet to test a bluetooth headset (I do not have one).
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Microphone issue ( Maybe Noise Cancelling)

Hello guys, i'm facing a very annoying issue, since i updated zenfone 5 to lollipop, my microphone randomly and at most time, the microphone doesn't work, during a call the other side can't hear me, but if i put in speaker mode, the microphone works well, also in recorded videos or audio, there's no sound, curiously, if i speak near the upper mic hole, the other side can hear me with a low quality voice. In nexus 5 there's a similar problem, and if you change the "persist.audio.fluence.voicecall=" to true in build.prop the problem is solved, so I guess the issue is in microphone noise cancelling. I want to know if there's a way to solve this, where I can disable the noise cancelling, i searched in build.prop but i didn't find a option related to mic/noise canceling.
P.S. I already change the firmware from stock lollipop to shell rom 5.0 and did a full wipe and the problem persist.
Celo88xda said:
Hello guys, i'm facing a very annoying issue, since i updated zenfone 5 to lollipop, my microphone randomly and at most time, the microphone doesn't work, during a call the other side can't hear me, but if i put in speaker mode, the microphone works well, also in recorded videos or audio, there's no sound, curiously, if i speak near the upper mic hole, the other side can hear me with a low quality voice. In nexus 5 there's a similar problem, and if you change the "persist.audio.fluence.voicecall=" to true in build.prop the problem is solved, so I guess the issue is in microphone noise cancelling. I want to know if there's a way to solve this, where I can disable the noise cancelling, i searched in build.prop but i didn't find a option related to mic/noise canceling.
P.S. I already change the firmware from stock lollipop to shell rom 5.0 and did a full wipe and the problem persist.
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HI,
maybe you fixed you problem yet (I'm sure you did after more than a year, but for other people having that problem).
Open claculator and type .12345+=
Go to BoardMic_Test
Make loud background noise for eg. from PC select one under youtube for phrase "industrial sounds 10 hrs"
Tap Start and talk to you phone.
Stop noise and listen results.
You may repeat procedure several times as results will satisfy you.
Try the same without noise, should be OK.
It works for me, no mic replacement, no software upgrade, no restarts, no restore factory defaults

Primary mic broken, is it possible to redirect to secondary mic?

Hi all,
I am having problems with calling since i bought my n9005 4 years back, people did not hear me speak on the other side, but when i put the phone in speaker mode the sound was just fine on receiver side.
Using different roms from stock to CM13 and miui nothing software related seemed to be the problem (tried all the things that i could find on the net and in settings).
Anyway, so I always been calling on speaker or using my huawei watch.
Now after all this time i thought lets fix it, and bought a new USB / Mic unit which i installed without success.
Since on speaker calls still works great, normal calls only cracking sound, i thought maybe its possible to redirect thru software to secondary mic on top of phone which i believe gets activated when talk on speaker phone?
Thanks in advance.

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