Hi,
I have a technical question regarding changing/re-routing microphone.
Here's my problem, it seems like my micro stopped working properly recently (maybe after a drop). The main microphone produces very little sound input and because of that, voice call doesn't work -- people can't hear me very well at all from the other side. Also voice recording doesn't work.
Spaker phone mode and headset mode works just fine. So i know the main-heandset-mic is broken.
My solution:
So I've tried a few approach, including editing the mixer_paths.xml file in system/ect/mixer_paths.xml
I have successfully replaced the main-mic with the speaker-mic and this seems to help a little bit. I'm able to record sound again using the speaker-mic.
But during call, it won't active that mic. I think android turns off all the other mic (both speaker-mic and headphone-mic, if it doesn't detect a headset plugged in and if I'm on normal handset mode).
Does any developers who knows android well enough to help me with this? I think somehow if I can have it so that android won't turn off my spaeker-phone mic when I'm in normal call mode would work, since the I've already replaced the mixter path profile of main-mic with that of speaker-mic.
Hope this is not too confusing..... I've trying my best to describe the problem. it's been very frustrating.
Hello all, new to the forum, with a brand new Mi4!
Here is my problem: the loudspeaker and/or microphone on the bottom are not working, but the earpiece is working fine. This means that when I call someone, I can hear him, but he can't. Same with medias (youtube, etc): they play, but don't output any noise. And I mean nothing at all for both, not "like from a really far distance". When I put the headphones' jack in and out, the headphone logo is always rightfully displayed (present only when they are plugged in). I can connect my UE BOOM 2 by bluetooth, and speak with it while calling someone, and it works.
Here are the solutions I tried, that did not work:
Plug in and out the jack's headphones really fast many times.
Try the hardware tests (tap five times on the "Kernel Version" in the "About" section). Failed the following: 4: Main mic speaker feedback test / 5: Simulation Call test / 6: Back mic speaker feedback test / 7: Top mic speaker feedback test.
If you have any solution / questions, please tell me. Here are the specs:
Model: Xiaomi MI 4W
Android version: 6.0.1 MMB29M
MIUI version: MIUI Global 9.5 | Stable 9.5.5.0(MXDMIFA)
Kernel version: 3.4.0-g1910d62
Thanks a lot, hope to hear from you guys! :cyclops:
Geon3000 said:
Here is my problem: the loudspeaker and/or microphone on the bottom are not working, but the earpiece is working fine. This means that when I call someone, I can hear him, but he can't.
Click to expand...
Click to collapse
Hello guys, just an update. I tried to record my voice, and it worked (I could hear it in my headphones!). I don't understand why no-one can hear me when I call them. Someone having the same problem as me?
Speaker not working
I am having exactly the same problem with my MI 4W phone too. How do I fix it?
My Pixel device produces no sound in the right speaker. When I got it the phone was already running Android 9. I thought it was a hardware issue and plugged in earphones (which work perfectly everywhere else), and there was no sound in the right earbud, either. It led me to believe this is a software issue, and I tried installing LineageOS which failed (exactly the same problem this thread talks about), and I gave up and used the method explained in an answer in the same thread to flash the official 9.0.0 (PPR2.181005.003.A1, Nov 2018) factory image from here (the version that came with the phone was from October).
Things I tried so far:
Rebooting.
Factory reset (while trying to install LineageOS the device got completely wiped a number of times).
Cleaning the speakers and earphone jack.
Switch "Mono audio" on and off in accessibility settings.
I'm guessing somewhere in the audio driver configuration file the right channel is muted. Can that be solved? I'll be really grateful if a solution can be found!
Just received my brand new Teclast M40. However, the mic on it seems to be very low. So far I tried Zoom and the recording app that comes with the Android 10 that the tablet ships with. I also tried with headphones and without.
I contacted the seller, which may be Teclast themselves selling on Aliexpress and they sent me the file to reinstall the system that is on the Tablet. But I thought I would come here to get some advice.
I did some searching and noticed a lot of people complaining about the mic issue with Android 10.
TIA
Rudy
RudyGireyev said:
Just received my brand new Teclast M40. However, the mic on it seems to be very low. So far I tried Zoom and the recording app that comes with the Android 10 that the tablet ships with. I also tried with headphones and without.
I contacted the seller, which may be Teclast themselves selling on Aliexpress and they sent me the file to reinstall the system that is on the Tablet. But I thought I would come here to get some advice.
I did some searching and noticed a lot of people complaining about the mic issue with Android 10.
TIA
Rudy
Click to expand...
Click to collapse
I have same issue like you. I hope to fix it next update.
onetech5 said:
I have same issue like you. I hope to fix it next update.
Click to expand...
Click to collapse
Have an update on my issue. That is that I only see it when I use wired headphones. When I use the mic on the tablet then it is OK. It's not as good as a mic on my laptop but it is about the same as a mic on my phone (ASUS Max). I have not tested it with bluetooth headphones.
Important: You need to make sure and grant permission to all of the apps that need to use the mic
Settings -> Apps & notifications -> Permission manager -> Microphone
As for updates. Does anyone here know if Teclast issues updates for their devices? I guess my understanding was that this is it. But I have no idea.
RudyGireyev said:
Just received my brand new Teclast M40. However, the mic on it seems to be very low. So far I tried Zoom and the recording app that comes with the Android 10 that the tablet ships with. I also tried with headphones and without.
I contacted the seller, which may be Teclast themselves selling on Aliexpress and they sent me the file to reinstall the system that is on the Tablet. But I thought I would come here to get some advice.
I did some searching and noticed a lot of people complaining about the mic issue with Android 10.
TIA
Rudy
Click to expand...
Click to collapse
I had two problems with this device; low microphone volume and echo during calls.
If my troubleshooting is correct, there seem to be two microphones (front and back). For some reason, apps (Telegram, viber, etc.) pick the microphone at the back. I have had some success by installing the android app "Microphone Amplifier" and switching to the front microphone and (maybe) increasing audio gain. I do not get any complaints about low microphone volume any more but the echo problem is still there.
The weird bit is that echo is still present even when using headphones. So, its got to be a software thing. I'd hate to have to return this wonderful device back.
Anyway, give it a try...
Bar Foo said:
The weird bit is that echo is still present even when using headphones. So, its got to be a software thing. I'd hate to have to return this wonderful device back.
Click to expand...
Click to collapse
For low microphone issues I assume you had already did the permission grants I posted earlier?
Can you post what kind of headphones you were using and getting the echo with. Like wired or wireless etc?
I found an app from Google called Sound Amplifier and in it there is Mic adjustment, however mine is always greyed out. Will need to figure out why. My guess is probably because Google Assistant is hogging it but I don't know.
Had a Zoom session with someone today without a mic and they said they could hear me well. Yay! In zoom there is an option to turn on what they call "original sound" which they explain as sound without noise suppression. when I did that the person on the other side began to complain about echo.
Anyway, am hoping to try a Zoom session with headphones tomorrow and see what happens. Lastly my Bluetooth headphones are on the way so would like to try those as well.
But overall I feel like the mic issue is much better at this point.
P.S. I did reflash the stock ROM on my device as per instructions from the seller. Using the windows based software that they sent me.
Verified again with Microphone Amplifier and it works. That is, you need to start it before you make the call for it to work.
Echo (people I talk to hear their own voice) is there with and without wired headphones. There is no echo when I use Bluetooth headphones.
I continue to have problems. The gain or call it what you want, the parameter to amplify the mic etc. it just doesn't work for me. The vowels are so low that I can hardly hear them with 100's of audio on the headphones of the desktop pc (from wp / tg desktop). Both me and the person on the other side. 100 on my pc headphones = I hear youtube with the door closed as if I had headphones ... to make you understand.
The great thing is that they look on the back, there is the microphone symbol but NO HOLES like in any phone (almost like the microphone is airtight inside).
I tried the "Microphone Amplifier" app and it ONLY works on the app. As soon as you quit the app (either by closing it or leaving it in the background) it doesn't hold the settings.
I also tried to use some guides via root with "tinymixer 31 27" commands but obviously the M40 parameter 31 is different (it does not correspond to the microphone gain).
Writing "tinymixer" brings up the list of all modifiable parameters but I don't understand which is the microphone (but write microphone instead of INLR? Which I assume is, IN> Input then microphone?)
The magisk module for the microphone doesn't work either.
To think that I had the exact same problem on the galaxy s5 (due to the custom rom LOS17) but with a flashable zip everything was solved (pity that I could not put TWRP on the M40 ... indeed it seems almost impossible and I do not find other custom recovery) .
So boh, at this point I have to put a different GSI and hope it works better than the stock.
I also tried with a bluetooth headset microphone and it feels worse (the proud thing is that the same mic in the headphones connected to the pc feels 4x better than the tablet ... )
PORCODIOO said:
To think that I had the exact same problem on the galaxy s5 (due to the custom rom LOS17) but with a flashable zip everything was solved (pity that I could not put TWRP on the M40 ... indeed it seems almost impossible and I do not find other custom recovery) .
So boh, at this point I have to put a different GSI and hope it works better than the stock.
Click to expand...
Click to collapse
The first suggestion that the vendor I bought this from made was that I reinstall the STOCK ROM. They sent me the install program and the files for the stock ROM.
PORCODIOO said:
I continue to have problems. The gain or call it what you want, the parameter to amplify the mic etc. it just doesn't work for me. The vowels are so low that I can hardly hear them with 100's of audio on the headphones of the desktop pc (from wp / tg desktop). Both me and the person on the other side. 100 on my pc headphones = I hear youtube with the door closed as if I had headphones ... to make you understand.
Click to expand...
Click to collapse
Have you granted MIC permissions to all of your apps as I outlined in one of my posts earlier?
Basically my issue is all but gone. It works well when I use the Bluetooth headphones and it works well when I don't use headphones at all. Meaning the mic that is in the tablet itself. Bear in mind I still need to be somewhat close to the tablet, just like a phone. Maybe 1 - 2 feet away. I mostly tested with the Zoom app.
RudyGireyev said:
Have you granted MIC permissions to all of your apps as I outlined in one of my posts earlier?
Click to expand...
Click to collapse
Obviously, you are asked the first time you start a recording (in that specific app). If there was no permission, the audio would not be recorded at all, otherwise the whole security / privacy apparatus would have a basic flaw.
If it registered anyway, even without my consent ... it would make no sense regardless (this security system).
RudyGireyev said:
The first suggestion that the vendor I bought this from made was that I reinstall the STOCK ROM. They sent me the install program and the files for the stock ROM.
Click to expand...
Click to collapse
It does not change the gist of the matter ... Whether it is the stock or a custom rom, we are talking about flashing something in the system partition. If I really have to flash to solve a similar problem, then I might as well have a gsi rom that also makes me move the time from left to right (unacceptable to find that this thing is a function of the LOS rom and not of android stock 2020 ).
thanks anyway.
when I find the desire to flash, I will write if I have solved it or not (for now I was thinking of the gsi RRQ, Resurrection Remix Q GSI. It also includes things from
LOS).
Hey guys, I posted the following reply in another thread. Duplicating it here..
My Teclast M40 has the same problem as yours regarding volume of recorded sound from the built in microphone. Based on the icons painted on the back of the tablet it appears the microphone is located between the two speakers. However, you will notice there is no hole cut in the case where the microphone should be. I looked all over the tablet for another microphone hole and the only other holes are for the reset button and speakers. So I think this is a design defect that cannot be corrected in software. The only option you have is to open the device, locate the microphone and cut a hole in the case to allow sound in, OR use a headset. Hope this helps.
Anyone solved this? I have two tablets m40 and both have this echo problem and low mic volume. One solved the low mic with the sound amplifier app and the other one dont. But the echo problem is in both. When use Bluetooth headsets have no problem. But i wish i had a fully functional tablet. I think its the last time i bought anything from teclast...
filipejfsalgado said:
Anyone solved this?
Click to expand...
Click to collapse
NO!
You just can't.
With tinymix you don't understand anything, I will have read the ENTIRE list 8 times and nothing that refers to the "gain" of the microphone.
Tried with bothtinymix -a and tinymix -t.
ALL the apps to amplify the microphone work only in the app itself and so here I got the doubt ... (blasphemy!) But it is to see that these apps (such as Microphone Amplifier) actually work but you have to register the audio from the app and then attach it to Telegram/Whatsapp ... WHAT A BULL****!!!
But the most absurd thing is the total absence IN 2021 of a command for Terminal or an official android UI to control all the parameters (like on any PC with Windows / Linux since 1990).
Then as usual, bad luck haunts me. Connected 3 headphones (3.5 4-pole jack, those with MIC in a nutshell) and NONE IS USED AS INPUT of the mic.
Both the MPOW H7 headphones and the 3 earphones / headphones.
I also tried a special bluetooth earphone (those to put in one ear, those as big as a remote control battery) and not even that.
I reset the android system with the rom found on the official teclast website (for the N9H1) nothing has changed.
I also tried that **** about the "Lesser AudioSwitch" app that doesn't do anything (because he doesn't impose the parameters but just tries to change them ... then it's up to android whether to accept the changes or not ... obviously android sends you to ****) .
Final report:
The internal microphone problem Can't be solved! It is not defined as solving: using a third-party app to record and then save the recording and send it wherever you want;
Neither the magisk module nor the .zip patch made for the galaxy s5 work (for the mic issue on LOS16 +);
Extra (off topic):
Mount a Mali G52 GPU that supports HEVC / AVC at 10bit ... and instead you dry up, because support for OS has not been programmed (in fact MPV with h264 10bit goes in black flickering).
Basic android uses software codecs while the hardware ones should be added by teclast during the customization of the android rom ... they have not added the codecs for the 10bit ... and since it is android you can't even say: oh well I install third party codecs that I add the support...
VLC that always made me ****, is now the only player that works decent. MXPlayer crashes, MPV every 3x1 flickering no matter what you touch from the settings and the built-in ExoPlayer sucks so much that ...
Because of this, Emby on this tablet uses ExoPlayer instead of MPV (MPV supported on both Galaxy s5 with LOS and nintendo Switch).
I have the engine of a Ferrari on a Panda 4x4 of the 80's ... It is useless.
If you want to take it as a tablet for your mother who does not understand anything about technology it is a great purchase for the rest it sucks more (for real) than the Galaxy S2 that you can put Android 11 on it and it runs even better.
Arrived yesterday (luckily from Amazon) and tested today.
I confirm both issues.
Useless.
I will send it back asap.
I have both issue. But I notice that the voice calls by the net 3g/2g (volte not supported for teclast in Polish Orange) (voice, not data) have any echo effects, voice is clear and loud..
steve.l said:
Hey guys, I posted the following reply in another thread. Duplicating it here..
My Teclast M40 has the same problem as yours regarding volume of recorded sound from the built in microphone. Based on the icons painted on the back of the tablet it appears the microphone is located between the two speakers. However, you will notice there is no hole cut in the case where the microphone should be. I looked all over the tablet for another microphone hole and the only other holes are for the reset button and speakers. So I think this is a design defect that cannot be corrected in software. The only option you have is to open the device, locate the microphone and cut a hole in the case to allow sound in, OR use a headset. Hope this helps.
Click to expand...
Click to collapse
Has anyone else been able to verify this? Have the Teclast P20HD and the microphone seems really bad for whoever I call or during zoom meetings? Similar problems as the above. Tried all other suggestions and nothing works.
Has anyone tried using this M40 tablet with a bluetooth speaker during video calls?
Would it decrease the echo? Would the mic work properly when using a bluetooth speaker? Thanks!
Today teclast released an update. The problem is still is not solved.
jaroslaw93 said:
Today teclast released an update. The problem is still is not solved.
Click to expand...
Click to collapse
Is this OTA or you had to download and install?
Just tried the Teclast app on my tablet and it said no update available.
RudyGireyev said:
Is this OTA or you had to download and install?
Just tried the Teclast app on my tablet and it said no update available.
Click to expand...
Click to collapse
Yes that was ota
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I have just received my M40 and have the same issue. One thing I noticed on the subject of the missing microphone hole, is that there seems to be a small hole bottom left of the screen (in landscape, camera at the top) behind the free screen protector. I am planning to return this so reluctant to remove the protector so wondering if anyone else has done this and if it made any difference?
If you put a search string "problem mic headphones" in XDA forums, you'll get tens if not hundreds of threads which start at least in 2015 and consider Xiaomi as well as Samsung, OnePlus, sometimes Moto phones - both on vendor and custom OS. Most of the threads are created in model specific subforums and most of them are left unanswered, even though the issues repeat from time to time, from one manufacturer to another. If I catch it correctly, Xiaomi (Redmi, Mi) is the champion in this field. But problems persist in other phones too.
One of the biggest issues often reported is that one day (or from the very beginning) when you put headset jack in, your interlocutor hears you badly. Your voice is too weak or ambient noise is too loud in respect to your speech. In many cases a proposed solution is 1) to install Mic Fix module for Magisk (on rooted phones). But it does not always work. 2) To change the headset and 3) to clean the physical jack hole. In many reported cases this does not help neither. So, there is a software switch which does not work.
I entered the club and having this precise issue with my Redmi Note 10 Pro running first on vendor Miui then on CrDroid 8. I changed three different wired headsets, including the one by Xiaomi, with no result. Installed Mic Fix module for Magisk (both latest updates), with no effect.
Manipulating the phone during the call or during a test record (bringing it closer and further to the mouth, putting it into my pocket with headset attached, etc.), I acknowledged that the problem is that the phone takes inbound audio signal from the phone built-in microphone and not from the headset. Both in mobile calls and in various messengers. Meanwhile listening to my interlocutors, as well as music alone is just fine.
Trying to solve the issue I found several great apps and Magisk modules, such as Dolby Atmos and Viper4Android FX equalizers which enhance your listening experience. But I found no clearly designated app or module which lets take control of the microphone when headset is attached. Literally no dedicated app or feature in all-rounder apps lets tweak the mic use. Meanwhile the issue persists during at least 7 years.
Maybe the solution is so evident, and the app/module is so easily and widely used that it's a shame to discuss such a noob topic? Please break the silence and tell which tools you use for tuning or tweaking your mic in the headset.
And if you already faced the same or a similar problem and found the same (zero) software solution for Android, what is the rational reason why such an app or module was not yet made by an expert and creative dev?
By now a solution that I found is to use a bluetooth headset. In this case the mic works well during calls.
But I like using wired headsets (and sound quality of mine wired is better than those on bluetooth). So I am still in search for an app or module to tweak or fix the mic redirection issue.
If someone can help, please be kind to give a hint.
Same here my man, and although my issue is slightly different, it's looking for the same solution, an app to tweak the mic
I'm using a oneplus 3 and my favorite ROM is Resurrection Remix (A10), but, if you use CTIA headsets (mine are earbuds because i don't like in-ear), sometimes the headset gets detected as OMTP and the mic produces a really loud hight pitch noise
So far i haven't found any solution, besides reconnecting the headset several, several times until it gets it right