Redmi Note 4 qualcomm mic issue - Android Q&A, Help & Troubleshooting

Most of the redmi note 4 qualcomm devices facing mic problem that the person on the other end can't hear you properly when calling or receiving. Is there any solution for this? Seniors please help.

Device:
Redmi Note 4 SD
MIUI 8.2.10
Problem:
In-call mic volume is too low/distorted unless you speak very close to the phone. If phone is tilted, other person can hear only a robotic sound coming from space. However, internet calling apps (WhatsApp, FB Messenger, IMO etc.) works quite normal. Voice Recorder and Camera recordings are also quite acceptable.
Failed Solutions:
Re-flashed Stock ROM through fastboot; no difference. Custom ROMs don't resolve the problem either. Tried latest builds of Lineage, PA and RR.
Tried by disabling Google Voice / "OK Google" and denying Mic permission for Google app. Also tried SoundAbout app. Nothing helps.
Editing these files (as guided in 4pda post) improves the quality a little bit: audio_platform_info.xml, media_profiles.xml, mixer_paths_mtp.xml, build.prop.
Conclusion:
Changing "ro.qc.sdk.audio.fluencetype" value to "none" improves the low volume issue but with low quality voice and disturbed speakerphone and earphone volumes.
Updated thread here.

Related

[SD] Weird mic issue which is making my RN3 useless

Hey everyone,
Ever since I've received this RN3, its mic has been a constant source of frustration. it appears to be off during phone/whatsapp/.. calls (other party can't hear me AT ALL). Now before you think that this is a HW issue, when I record a video with the builtin camera app, it does record sound but at a lower volume than I think it should be. This is what i've tried/noticed so far:
- The exact same thing happens on Global 7.3.2, Global dev 6.5.19 and Chinese 7.3.2.
- Swapped SIM and/or placed SIM in tray 2 (no effect)
- Flashed Santhosh's CM 13 ROM (other party still can't hear me)
- Used builtin sound recording app on MIUI ROMS: I can hear a lot of noise but not what has been recorded
- Used builtin sound recording app in CM 13 ROM: nothing
I've looked on the en.miui forum board and apparently I'm not the only one with this issue. Other ppl are facing the issue that the mic gets shut off after recording video (and a reboot solves it), but this is not the case for me.
Does anyone have any idea? Thx.
Have you fixed that problem?
I have the same issue but a little bit different. I don't own a pair of hans-free so when I answer a call I connect a pair of headphones and talk from the phone's mic. So unless I have the phone 1 cm next to my mouth the other person cannot hear me, which didn't happen with my old phone (the other person could hear me even if the phone was 2 meters away from me). And it is not an issue because when I answer a call in speaker mode it operates correctly.
So I've discovered that the problem lies within the secondary mic next to the jack port which is used for noise cancellation as people state in miui forums. The only solution I've came up with is covering the secondary mic with my finger every time I answer a call. With this solution the secondary mic is "disabled" and the primary mic operates as expected, people can hear me even if the phone is not right next to my mouth. Of course this is not a permanent solution but I haven't found a way to disable the secondary mic through software yet, or calibrate it to not falsely filter every sound as noise and canceling it.
hallo guys,
i have the same problem on my redmi note 3 (mtk) for months, its really annoying.
when im having a call, my mic suddenly switches and my call partner can only hear me very very silent.
also i had some situations, that my call partner can not hear me at all. herefore a reboot worked fine...
as mentioned above, the problem are the 2 different mics on the redmi note3.
one is at the bottom which should be used for calls (lets call this MIC1), the other one is on the top next to the head jack plug (MIC2)
sometimes the MIC1 switches and so the call partner only can hear you via the top MIC2 - thats why your voice is very very silent then.
on the other hand when you record a video, the voice is switched to the top MIC2 and might stay there also after the video as standard - thats why no one can hear you in calls then, or only hears you very very silent.
solution: close the hole for the upper MIC2 with a tape, then it won't switch during calls!
disadvantage:
- you can't put a call on speaker, because system switches to MIC2 which isnt working.
- you can't use google now for music detection, because system switches to MIC2 which isnt working.
- you might have sound issues when recording a video in landscape (i tested it, had no problems and could hear the sound when watching the recorded landscape video)
here is a link about the recording videos in landscape vs portrait:
https://www.youtube.com/watch?v=yDE4B8Z3q14
and here a video with the tape solution:
https://www.youtube.com/watch?v=mFjGp3PEZt0
are there any software solutions to disable the second mic??
How to solve Redmi note 3 mic Problem:
Step 1: Go to Google settings (Not phone setting)
Step 2: Tap on Search & Now
Step 3: Tap on voice . After that tap on “Ok Google” detection
Step 4: off the “Ok Google” detection .
Congratulation. Your Redmi note 3 mic Problem is solved. Its happening because of “Ok Google” service. Now your friends can easily listen to you without any disturbance.
This is a serious problem and just insane that is has not been fixed. I have the Redmi Note 3 Pro and Calls and talking is fine
Now recording anything at High Levels it sounds like a wave effect, both mics are on even if the top is covered same issue.
Its as if there is a threshold somewhere on the noise cancellation that after a certain decibel it tries to correct and auto compress and fails Large.
This must be software as it is leaving both mics on instead of having an option to turn one or the other or BOTH off and or on.
Using an acoustic guitar is pointless, I purchased this phone for the price/performance ratio and thought the audio would not be an issue while recording, it is now useless as it was used to get music ideas down for songs, record band in practice for ideas and live situations it is absolutely impossible and upsetting this simple feature has not been fixed. Back to rotary phones and 4 tracks I suppose.
So far 2 out of 3 Redmi note 3 SD i puchased for my self and friends have this problem of mic not working in calls. On speaker phone it is OK. Tried all the "fixes" I have found on various sites but none have worked. Have not tried one of the fixes as it requires installing TWRP and rootingand the owners are not happy for me to do this for them. Rebooting sometimes fixes one off them briefly but just fails again after 1 call . On the MIUI forum there are countless people with this problem on both chipsets with no fix
i have buy redmi note 3 on a month ago, now i have updated MIUI 8 and i face mic issue(other person can't hear me), done every thing but not able to resolve this issue, pls someone give permanent solution on this.
Interested to know if anyone has a solution for this. I have moved to CM14.1 to try and fix it but am still having this issue.
using the phone with closed MIC2 hole like described above
This solution works for me for Nougat:
Use a root explorer like ES Explorer to edit /system/build.prop
Find the line :
ro.qc.sdk.audio.fluencetype=fluence
Change to:
ro.qc.sdk.audio.fluencetype=none
Solution
NO ROOT REQUIRED. Simple Solution.
With me it worked using the soundabout app, just set up "phone call audio" by selecting wired headset (with mic) option.
Once done you can uninstall the app if you want. Cheers!
Hello all, so, the solution for the recording sound problem is the use of soundabout? in my redmi 3s I applied the fix.zip and it is solved, but in the RN3? just using this app?
Thanks!
Juerwotow said:
Hello all, so, the solution for the recording sound problem is the use of soundabout? in my redmi 3s I applied the fix.zip and it is solved, but in the RN3? just using this app?
Thanks!
Click to expand...
Click to collapse
Did it worked?

Noise reduction in video and call (SD)

Hello,
i have problem probably with noise reduction - when i record video in quite room, audio is ok,
but when background a little bit noise, i hear only some scratches, sometimes a quiet voice ...
The same situation is when i record call, barely hear voices... is there any possibility to change settings in noise reduction?
I'm using aosp, on miui there where only problem with call recording...
Is qualcomm have something similar to mtk engineering menu? Maybe some settings in build.prop?
I think it's a problem of the secondary mic (it is located next to the headphones port) which is used for noise cancellation. I haven't experienced an issue with video recording yet (because I haven't recorded any video) but I have problems with call quality. Every time I place the phone a little far from my mouth I hear complaints that the other person cannot hear me, which wasn't an issue with my older phone.
The temporary solution I have found is covering the secondary mic with my finger (thus disabling it). Also from what I've found in the internet there are some other phones with the same problem and there are ways to disable the secondary mic through software but I haven't tested it yet. Here are the links I'm talking about
https://forums.oneplus.net/threads/fix-call-quality-issue.284449/
http://forum.xda-developers.com/goo...ue-nexus-5-t2538979/post52006598#post52006598
I repeat that I haven't tested this fixes myself and I don't know if they are compatible with our phone.
Thanks for answer,
when i was looking for a solution, i saw tread from one+ but i was counting that is fix directly for our model.
Firstly i change build.prop - and now testing, in audio platform i dont have such line, solution from nexus same situation - dont have those lines.
Hello..
I have problem with background noise during audio call.. because of that noise.... I didn't talk with person who is in call..

Redmi Note 3 [Snapdragon] Problem with main mic, too low

I have a big problem with the main mic of my Remi Note 3 pro (Snapdragon Variant).
When I make a call, people can't hear me, I need to turn on the speaker mode to talk.
I've checked the recorder app and it can't record nothing, only when I blow into the bottom mic record the sound of the air with low volume. I've recorded a video and the top mic works great.
I've installed Official CM13 and it is worse, because it seems the problem it's with the bottom mic, and this ROM use the bottom mic for all things, I can't do anything.
Also reflashing the MIUI ROM doesn't help.
- I tried desactivating ok google.
- blocking all sounds of the second mic.
Someone know how to fix the mic? I'm going crazy. :crying:

Absurd problem with the microphone

Hello everyone thanks for the admission to the group,
I recently bought a xiaomi redmi note 4 global (4ram 64gb) but the problems.
I flashato the rom pixel expirience but I do not want the microphone in the audio (calls, telegram, whatsapp, recordings, programs to test the microphone) but when I make a video the voice is heard, thinking it was a problem of the rom I tried with the resurrection remix OS (nougat), aosp (oreo) cardinal (oreo) but also the same problem no audio yes video.
Tired of being quite strange situation, I turned MIUI 9 off and everything works.
Can you explain to me why this thing?
PS.I have given access to the microphone in all the apps mentioned above for the various tests
Thanks to those who will answer and apologize for my english,
Davide
fonta94 said:
Hello everyone thanks for the admission to the group,
I recently bought a xiaomi redmi note 4 global (4ram 64gb) but the problems.
I flashato the rom pixel expirience but I do not want the microphone in the audio (calls, telegram, whatsapp, recordings, programs to test the microphone) but when I make a video the voice is heard, thinking it was a problem of the rom I tried with the resurrection remix OS (nougat), aosp (oreo) cardinal (oreo) but also the same problem no audio yes video.
Tired of being quite strange situation, I turned MIUI 9 off and everything works.
Can you explain to me why this thing?
PS.I have given access to the microphone in all the apps mentioned above for the various tests
Thanks to those who will answer and apologize for my english,
Davide
Click to expand...
Click to collapse
After installing custom rom you can try using a module from magisk "android mic fix". Although the description specifies that will repair low volume on the mic. Just check if you're recording anything with the mic at all or just the volume is really low that it should be.
thanks for your answer,
no the microphone is not low just do not go. magisk no let me install due to an unknown ERROR 1 (version 15.3 / 15.4).

Low mic volume just on WhatsApp voicenotes & stock recording app after update

Problem here after update 10, microphone extremely low on WhatsApp voice notes and voice recorder just on those apps and this weird notification appears every time an app use mic.
The message says " prohibit (app) from use microphone?
This time
All time
Cancel"
Is very frustrating. The mic sometimes works but mostly extreme low volume on WhatsApp voice notes and stock voice recorder app.
Realme xt euex BRAND NEW! update just few minutes after unboxing and now this porblem. HEEEEELLLLLP! THANX
ADRIAN MCYORIAN
Same issue on my pixel 3a. Did you find a solution?
Mine solved.
same problem here.
its been few months. no developer even wanna fix it..
Solution 1:
I used 1 of the modded WhatsApp and see the option.
Voice Note
DISABLE THE PROXIMITY SENSOR
Solution 2
when voice call other person, immediately raise the volume. u will see the call volume icon. hang up when finish.
let me know if its fix.
Android 10 Low Mic Volume issue
I came across the WhatsApp giving problem in low mic volume.
Solution
TURN OFF "Hey Google" in Google typing INPUT SETTING.
DISABLE also the Google Assistant.
mine works wonder!
Until Google fix this problem... no way I'm going to use this buggy Google Assistant
push thanks if it help! cheers!
This one works
Microphone Amplifier​
Microphone Amplifier - Apps on Google Play
Discover the small voice around you and high quality wav format recording.
play.google.com

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